diff --git a/cdistributoreditdialog.h b/cdistributoreditdialog.h
index be8ad8a..1482def 100644
--- a/cdistributoreditdialog.h
+++ b/cdistributoreditdialog.h
@@ -19,20 +19,19 @@ public:
 	explicit cDistributorEditDialog(QWidget *parent = 0);
 	~cDistributorEditDialog();
 
-	qint32			id();
-
-	void			setValues(cDistributor* lpDistributor);
+	qint32						id();
+	void						setValues(cDistributor* lpDistributor);
 private slots:
-	void			on_m_lpName_textChanged(const QString &arg1);
+	void						on_m_lpName_textChanged(const QString &arg1);
 
 private:
-	Ui::cDistributorEditDialog *ui;
-	qint32			m_id;
+	Ui::cDistributorEditDialog*	ui;
+	qint32						m_id;
 
-	bool			save();
-	bool			add();
+	bool						save();
+	bool						add();
 protected:
-	void			accept();
+	void						accept();
 };
 
 #endif // CDISTRIBUTOREDITDIALOG_H
diff --git a/cdistributoreditdialog.ui b/cdistributoreditdialog.ui
index 2d21857..0b50294 100644
--- a/cdistributoreditdialog.ui
+++ b/cdistributoreditdialog.ui
@@ -6,8 +6,8 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>515</width>
-    <height>347</height>
+    <width>500</width>
+    <height>350</height>
    </rect>
   </property>
   <property name="windowTitle">
diff --git a/cdistributorwindow.cpp b/cdistributorwindow.cpp
index c21bbcc..a97f9b4 100644
--- a/cdistributorwindow.cpp
+++ b/cdistributorwindow.cpp
@@ -3,7 +3,6 @@
 
 #include "cdistributoreditdialog.h"
 
-
 #include <QString>
 #include <QSqlQuery>
 #include <QSqlError>
@@ -67,6 +66,9 @@ void cDistributorWindow::showDistributorList()
 
 		m_lpDistributorListModel->appendRow(lpItems);
 	}
+
+	for(int z = 0;z < header.count();z++)
+		ui->m_lpDistributorList->resizeColumnToContents(z);
 }
 
 bool cDistributorWindow::somethingSelected()
diff --git a/cmainwindow.cpp b/cmainwindow.cpp
index 9960c4e..42b6bef 100644
--- a/cmainwindow.cpp
+++ b/cmainwindow.cpp
@@ -1,14 +1,20 @@
 #include "cmainwindow.h"
 #include "ui_cmainwindow.h"
 
+#include "cpartlistwindow.h"
+
 #include "common.h"
 
 #include <QSqlQuery>
 #include <QSqlError>
 
+#include <QMessageBox>
+
 #include <QSettings>
 #include <QDir>
 
+#include <QInputDialog>
+
 #include <QDebug>
 
 
@@ -34,6 +40,8 @@ cMainWindow::cMainWindow(QWidget *parent) :
 	initDB();
 
 	loadDistributorList();
+	loadPartGroupList();
+	loadPartList();
 
 	updateMenu();
 }
@@ -76,12 +84,22 @@ void cMainWindow::initDB()
 
 	QSqlQuery	query;
 
+	if(!m_db.tables().contains("partgroup"))
+	{
+		query.exec("CREATE TABLE partgroup ("
+					"   id                  INTEGER PRIMARY KEY,"
+					"   name                STRING NOT NULL,"
+					"   description         TEXT);");
+	}
+
 	if(!m_db.tables().contains("part"))
 	{
 		query.exec("CREATE TABLE part ("
 					"   id                  INTEGER PRIMARY KEY,"
 					"   name                STRING NOT NULL,"
-					"   description         TEXT);");
+					"   partgroupID         INTEGER REFERENCES partgroup(id),"
+					"   description         TEXT,"
+					"   link                STRING);");
 	}
 
 	if(!m_db.tables().contains("distributor"))
@@ -99,6 +117,18 @@ void cMainWindow::initDB()
 					"   description TEXT);");
 	}
 
+	if(!m_db.tables().contains("part_distributor"))
+	{
+		query.exec("CREATE TABLE part_distributor ("
+					"   id			   INTEGER PRIMARY KEY,"
+					"   name           STRING,"
+					"   description    TEXT,"
+					"   partID         INTEGER REFERENCES part (id),"
+					"   distributorID  INTEGER REFERENCES distributor (id),"
+					"   price          DOUBLE,"
+					"   link           STRING);");
+	}
+
 	if(!m_db.tables().contains("partlist"))
 	{
 		query.exec("CREATE TABLE partlist ("
@@ -110,21 +140,23 @@ void cMainWindow::initDB()
 	if(!m_db.tables().contains("partlistitem"))
 	{
 		query.exec("CREATE TABLE partlistitem ("
-					"   id			   INTEGER PRIMARY KEY,"
-					"   partlistID     INTEGER REFERENCES partlist (id),"
-					"   partID         INTEGER REFERENCES part (id),"
-					"   reference      STRING,"
-					"   description    TEXT,"
-					"   distributorID  INTEGER REFERENCES distributor (id),"
-					"   ordered        BOOLEAN,"
-					"   link           STRING);");
+					"   id			        INTEGER PRIMARY KEY,"
+					"   partlistID          INTEGER REFERENCES partlist (id),"
+					"   part_disttributorID INTEGER REFERENCES part_distributor (id),"
+					"   replaceID           INTEGER REFERENCES partlistitem (id),"
+					"   reference           STRING,"
+					"   description         TEXT,"
+					"   state               INTEGER,"
+					"   price               DOUBLE);");
 	}
 
 	if(!m_db.tables().contains("project"))
 	{
 		query.exec("CREATE TABLE project ("
 					"   id			   INTEGER PRIMARY KEY,"
-					"   name           STRING);");
+					"   name           STRING,"
+					"   initialDate    DATE,"
+					"   description);");
 	}
 
 	if(!m_db.tables().contains("project_partlist"))
@@ -170,6 +202,64 @@ void cMainWindow::loadDistributorList()
 	}
 }
 
+void cMainWindow::loadPartGroupList()
+{
+	m_partGroupList.clear();
+
+	QSqlQuery	query;
+	QString		szQuery;
+
+	szQuery	= "SELECT id, name, description FROM partgroup ORDER BY name;";
+
+	if(!query.exec(szQuery))
+	{
+		qDebug() << query.lastError().text();
+		return;
+	}
+
+	while(query.next())
+	{
+		cPartGroup*	lpPartGroup	= m_partGroupList.add(query.value("id").toInt());
+		if(!lpPartGroup)
+			return;
+
+		lpPartGroup->setName(query.value("name").toString());
+		lpPartGroup->setDescription(query.value("description").toString());
+	}
+}
+
+void cMainWindow::loadPartList()
+{
+	m_partList.clear();
+
+	QSqlQuery	query;
+	QString		szQuery;
+
+	szQuery	= "SELECT part.id id, part.name name, part.description description, part.partgroupID partgroupID, part.link FROM part JOIN partgroup ON (part.partgroupID = partgroup.id) ORDER BY partgroup.name, part.name;";
+
+	if(!query.exec(szQuery))
+	{
+		qDebug() << query.lastError().text();
+		return;
+	}
+
+	while(query.next())
+	{
+		cPartGroup*	lpPartGroup	= m_partGroupList.find(query.value("part.partgroupID").toInt());
+		if(!lpPartGroup)
+			return;
+
+		cPart*		lpPart		= m_partList.add(query.value("part.id").toInt());
+		if(!lpPart)
+			return;
+
+		lpPart->setName(query.value("part.name").toString());
+		lpPart->setDescription(query.value("part.description").toString());
+		lpPart->setPartGroup(lpPartGroup);
+		lpPart->setLink(query.value("part.link").toString());
+	}
+}
+
 void cMainWindow::on_m_lpMenuFileNewProject_triggered()
 {
 
@@ -239,23 +329,36 @@ void cMainWindow::on_m_lpMenuPartsShow_triggered()
 	{
 		m_lpPartWindow	= new cPartWindow(this);
 		ui->m_lpMainTab->addTab(m_lpPartWindow, tr("Parts"));
+		m_lpPartWindow->setList(&m_partGroupList, &m_partList);
+
+		connect(m_lpPartWindow, SIGNAL(selectionChanged(QModelIndex)), this, SLOT(partSelectionChanged(QModelIndex)));
+		connect(m_lpPartWindow, SIGNAL(partChanged(cPart*)), this, SLOT(partChanged(cPart*)));
 	}
 	ui->m_lpMainTab->setCurrentWidget(m_lpPartWindow);
 }
 
 void cMainWindow::on_m_lpMenuPartsAdd_triggered()
 {
+	if(!m_lpPartWindow)
+		return;
 
+	m_lpPartWindow->addPart();
 }
 
 void cMainWindow::on_m_lpMenuPartsEdit_triggered()
 {
+	if(!m_lpPartWindow)
+		return;
 
+	m_lpPartWindow->editPart();
 }
 
 void cMainWindow::on_m_lpMenuPartsDelete_triggered()
 {
+	if(!m_lpPartWindow)
+		return;
 
+	m_lpPartWindow->deletePart();
 }
 
 void cMainWindow::updateMenu()
@@ -268,6 +371,17 @@ void cMainWindow::updateMenu()
 		ui->m_lpMenuDistributorEdit->setEnabled(false);
 		ui->m_lpMenuDistributorDelete->setEnabled(false);
 
+		ui->m_lpMenuPartsShow->setEnabled(true);
+		ui->m_lpMenuPartsAdd->setEnabled(false);
+		ui->m_lpMenuPartsEdit->setEnabled(false);
+		ui->m_lpMenuPartsDelete->setEnabled(false);
+
+		ui->m_lpMenuPartlistNew->setEnabled(true);
+		ui->m_lpMenuPartlistOpen->setEnabled(true);
+		ui->m_lpMenuPartlistClose->setEnabled(false);
+		ui->m_lpMenuPartlistSave->setEnabled(false);
+		ui->m_lpMenuPartlistSaveAs->setEnabled(false);
+
 		return;
 	}
 
@@ -289,13 +403,61 @@ void cMainWindow::updateMenu()
 			ui->m_lpMenuDistributorEdit->setEnabled(false);
 			ui->m_lpMenuDistributorDelete->setEnabled(false);
 		}
+
+		ui->m_lpMenuPartsShow->setEnabled(true);
+		ui->m_lpMenuPartsAdd->setEnabled(false);
+		ui->m_lpMenuPartsEdit->setEnabled(false);
+		ui->m_lpMenuPartsDelete->setEnabled(false);
+
+		ui->m_lpMenuPartlistNew->setEnabled(true);
+		ui->m_lpMenuPartlistOpen->setEnabled(true);
+		ui->m_lpMenuPartlistClose->setEnabled(false);
+		ui->m_lpMenuPartlistSave->setEnabled(false);
+		ui->m_lpMenuPartlistSaveAs->setEnabled(false);
 	}
-	else
+	else if(lpPartWindow)
 	{
+		ui->m_lpMenuPartsShow->setEnabled(false);
+		ui->m_lpMenuPartsAdd->setEnabled(true);
+		if(!lpPartWindow->groupSelected())
+		{
+			ui->m_lpMenuPartsEdit->setEnabled(true);
+			ui->m_lpMenuPartsDelete->setEnabled(true);
+		}
+		else
+		{
+			ui->m_lpMenuPartsEdit->setEnabled(false);
+			ui->m_lpMenuPartsDelete->setEnabled(false);
+		}
+
 		ui->m_lpMenuDistributorShow->setEnabled(true);
 		ui->m_lpMenuDistributorAdd->setEnabled(false);
 		ui->m_lpMenuDistributorEdit->setEnabled(false);
 		ui->m_lpMenuDistributorDelete->setEnabled(false);
+
+		ui->m_lpMenuPartlistNew->setEnabled(true);
+		ui->m_lpMenuPartlistOpen->setEnabled(true);
+		ui->m_lpMenuPartlistClose->setEnabled(false);
+		ui->m_lpMenuPartlistSave->setEnabled(false);
+		ui->m_lpMenuPartlistSaveAs->setEnabled(false);
+	}
+	else if(lpPartlistWindow)
+	{
+		ui->m_lpMenuPartlistNew->setEnabled(true);
+		ui->m_lpMenuPartlistOpen->setEnabled(true);
+		ui->m_lpMenuPartlistClose->setEnabled(true);
+		ui->m_lpMenuPartlistSave->setEnabled(lpPartlistWindow->somethingChanged());
+		ui->m_lpMenuPartlistSaveAs->setEnabled(true);
+
+		ui->m_lpMenuDistributorShow->setEnabled(true);
+		ui->m_lpMenuDistributorAdd->setEnabled(false);
+		ui->m_lpMenuDistributorEdit->setEnabled(false);
+		ui->m_lpMenuDistributorDelete->setEnabled(false);
+
+		ui->m_lpMenuPartsShow->setEnabled(true);
+		ui->m_lpMenuPartsAdd->setEnabled(false);
+		ui->m_lpMenuPartsEdit->setEnabled(false);
+		ui->m_lpMenuPartsDelete->setEnabled(false);
 	}
 }
 
@@ -304,12 +466,164 @@ void cMainWindow::on_m_lpMainTab_currentChanged(int /*index*/)
 	updateMenu();
 }
 
-void cMainWindow::distributorSelectionChanged(const QModelIndex& index)
+void cMainWindow::distributorSelectionChanged(const QModelIndex& /*index*/)
 {
 	updateMenu();
 }
 
-void cMainWindow::distributorChanged(cDistributor* lpDistributor)
+void cMainWindow::distributorChanged(cDistributor* /*lpDistributor*/)
 {
 	loadDistributorList();
 }
+
+void cMainWindow::partSelectionChanged(const QModelIndex& /*index*/)
+{
+	updateMenu();
+}
+
+void cMainWindow::partGroupChanged(cPartGroup* /*lpPartGroup*/)
+{
+	loadPartGroupList();
+	loadPartList();
+}
+
+void cMainWindow::partChanged(cPart* /*lpPart*/)
+{
+	loadPartList();
+}
+
+void cMainWindow::on_m_lpMenuPartlistNew_triggered()
+{
+	QList<qint16>		newList;
+
+	for(int x = 0;x < ui->m_lpMainTab->count();x++)
+	{
+		cPartlistWindow*	lpPartlistWindow	= qobject_cast<cPartlistWindow*>(ui->m_lpMainTab->widget(x));
+
+		if(!lpPartlistWindow)
+			continue;
+
+		QString				szTitle				= lpPartlistWindow->windowTitle();
+		if(!szTitle.startsWith("new"))
+			continue;
+
+		if(szTitle.length() == 3)
+		{
+			newList.append(0);
+			continue;
+		}
+
+		if(!szTitle.contains("("))
+			continue;
+
+		szTitle	= szTitle.mid(szTitle.indexOf("(")+1);
+		if(!szTitle.contains(")"))
+			continue;
+
+		szTitle	= szTitle.left(szTitle.indexOf(")"));
+		newList.append(szTitle.toInt());
+	}
+
+	std::sort(newList.begin(), newList.end());
+	QString				szNew;
+
+	if(newList.isEmpty())
+		szNew	= "new";
+	else
+		szNew	= QString("new (%1)").arg(newList.last()+1);
+
+	cPartlistWindow*	lpNew	= new cPartlistWindow(ui->m_lpMainTab);
+	lpNew->setPartlistName(szNew);
+	lpNew->setMainTab(ui->m_lpMainTab);
+	ui->m_lpMainTab->addTab(lpNew, szNew);
+	ui->m_lpMainTab->setCurrentWidget(lpNew);
+
+	connect(lpNew, SIGNAL(partlistChanged(QWidget*)), this, SLOT(partlistChanged(QWidget*)));
+}
+
+void cMainWindow::on_m_lpMenuPartlistOpen_triggered()
+{
+	QStringList		szList;
+	QSqlQuery		query;
+	QList<qint32>	idList;
+
+	if(!query.exec("SELECT id, name, description FROM partlist ORDER BY name;"))
+	{
+		qDebug() << query.lastError().text();
+		QMessageBox::critical(this, "Error", "No projects found.");
+		return;
+	}
+
+	while(query.next())
+	{
+		QString sz	= query.value("name").toString();
+		if(!query.value("description").toString().isEmpty())
+			sz.append(QString(" (%1)").arg(query.value("description").toString()));
+
+		szList.append(sz);
+		idList.append(query.value("id").toInt());
+	}
+
+	if(!szList.count())
+	{
+		QMessageBox::critical(this, "Error", "No projects found.");
+		return;
+	}
+
+	QInputDialog	inputDialog(this);
+	inputDialog.setOptions(QInputDialog::UseListViewForComboBoxItems);
+	inputDialog.setComboBoxItems(szList);
+	inputDialog.setLabelText("Project:");
+	inputDialog.setWindowTitle("Open");
+
+	if(inputDialog.exec() == QDialog::Accepted)
+	{
+		QString	szResult	= inputDialog.textValue();
+		qint16	index		= szList.indexOf(szResult);
+		qint32	id			= idList.at(index);
+
+		cPartlistWindow*	lpNew	= new cPartlistWindow(ui->m_lpMainTab);
+		lpNew->setMainTab(ui->m_lpMainTab);
+		ui->m_lpMainTab->addTab(lpNew, "INITIALIZING");
+		ui->m_lpMainTab->setCurrentWidget(lpNew);
+		lpNew->setPartlistID(id);
+
+		connect(lpNew, SIGNAL(partlistChanged(QWidget*)), this, SLOT(partlistChanged(QWidget*)));
+	}
+}
+
+void cMainWindow::on_m_lpMenuPartlistClose_triggered()
+{
+	cPartlistWindow*	lpPartlistWindow	= qobject_cast<cPartlistWindow*>(ui->m_lpMainTab->widget(ui->m_lpMainTab->currentIndex()));
+
+	if(!lpPartlistWindow)
+		return;
+
+	if(lpPartlistWindow->close())
+		ui->m_lpMainTab->removeTab(ui->m_lpMainTab->currentIndex());
+}
+
+void cMainWindow::on_m_lpMenuPartlistSave_triggered()
+{
+	cPartlistWindow*	lpPartlistWindow	= qobject_cast<cPartlistWindow*>(ui->m_lpMainTab->widget(ui->m_lpMainTab->currentIndex()));
+
+	if(!lpPartlistWindow)
+		return;
+
+	lpPartlistWindow->save();
+}
+
+void cMainWindow::on_m_lpMenuPartlistSaveAs_triggered()
+{
+	cPartlistWindow*	lpPartlistWindow	= qobject_cast<cPartlistWindow*>(ui->m_lpMainTab->widget(ui->m_lpMainTab->currentIndex()));
+
+	if(!lpPartlistWindow)
+		return;
+
+	lpPartlistWindow->saveAs();
+}
+
+void cMainWindow::partlistChanged(QWidget* /*lpWidget*/)
+{
+	updateMenu();
+}
diff --git a/cmainwindow.h b/cmainwindow.h
index eef2ecc..9360c81 100644
--- a/cmainwindow.h
+++ b/cmainwindow.h
@@ -7,6 +7,8 @@
 #include "cpartwindow.h"
 
 #include "cdistributor.h"
+#include "cpartgroup.h"
+#include "cpart.h"
 
 #include <QMainWindow>
 #include <QCloseEvent>
@@ -30,12 +32,16 @@ private:
 	Ui::cMainWindow*	ui;
 	QSqlDatabase		m_db;
 	cDistributorList	m_distributorList;
+	cPartGroupList		m_partGroupList;
+	cPartList			m_partList;
 
 	cDistributorWindow*	m_lpDistributorWindow;
 	cPartWindow*		m_lpPartWindow;
 
 	void				initDB();
 	void				loadDistributorList();
+	void				loadPartGroupList();
+	void				loadPartList();
 
 	void				updateMenu();
 protected:
@@ -46,10 +52,12 @@ private slots:
 	void				on_m_lpMenuFileCloseProject_triggered();
 	void				on_m_lpMenuFileExport_triggered();
 	void				on_m_lpMenuFileClose_triggered();
+
 	void				on_m_lpMenuDistributorShow_triggered();
 	void				on_m_lpMenuDistributorAdd_triggered();
 	void				on_m_lpMenuDistributorEdit_triggered();
 	void				on_m_lpMenuDistributorDelete_triggered();
+
 	void				on_m_lpMenuPartsShow_triggered();
 	void				on_m_lpMenuPartsAdd_triggered();
 	void				on_m_lpMenuPartsEdit_triggered();
@@ -58,6 +66,18 @@ private slots:
 
 	void				distributorSelectionChanged(const QModelIndex& index);
 	void				distributorChanged(cDistributor* lpDistributor);
+
+	void				partSelectionChanged(const QModelIndex& index);
+	void				partGroupChanged(cPartGroup* lpPartGroup);
+	void				partChanged(cPart* lpPart);
+
+	void				partlistChanged(QWidget* lpWidget);
+
+	void				on_m_lpMenuPartlistNew_triggered();
+	void				on_m_lpMenuPartlistOpen_triggered();
+	void				on_m_lpMenuPartlistClose_triggered();
+	void				on_m_lpMenuPartlistSave_triggered();
+	void				on_m_lpMenuPartlistSaveAs_triggered();
 };
 
 #endif // CMAINWINDOW_H
diff --git a/cmainwindow.ui b/cmainwindow.ui
index fef8dcb..33bd6c4 100644
--- a/cmainwindow.ui
+++ b/cmainwindow.ui
@@ -20,6 +20,9 @@
       <property name="currentIndex">
        <number>-1</number>
       </property>
+      <property name="movable">
+       <bool>true</bool>
+      </property>
      </widget>
     </item>
    </layout>
@@ -64,9 +67,22 @@
     <addaction name="m_lpMenuPartsEdit"/>
     <addaction name="m_lpMenuPartsDelete"/>
    </widget>
+   <widget class="QMenu" name="m_lpMenuPartlist">
+    <property name="title">
+     <string>Part&amp;list</string>
+    </property>
+    <addaction name="m_lpMenuPartlistNew"/>
+    <addaction name="m_lpMenuPartlistOpen"/>
+    <addaction name="separator"/>
+    <addaction name="m_lpMenuPartlistClose"/>
+    <addaction name="separator"/>
+    <addaction name="m_lpMenuPartlistSave"/>
+    <addaction name="m_lpMenuPartlistSaveAs"/>
+   </widget>
    <addaction name="m_lpMenuFile"/>
    <addaction name="m_lpMenuDistributor"/>
    <addaction name="m_lpMenuParts"/>
+   <addaction name="m_lpMenuPartlist"/>
   </widget>
   <widget class="QToolBar" name="mainToolBar">
    <attribute name="toolBarArea">
@@ -150,6 +166,31 @@
     <string>delete</string>
    </property>
   </action>
+  <action name="m_lpMenuPartlistNew">
+   <property name="text">
+    <string>&amp;new...</string>
+   </property>
+  </action>
+  <action name="m_lpMenuPartlistOpen">
+   <property name="text">
+    <string>&amp;open...</string>
+   </property>
+  </action>
+  <action name="m_lpMenuPartlistClose">
+   <property name="text">
+    <string>&amp;close</string>
+   </property>
+  </action>
+  <action name="m_lpMenuPartlistSave">
+   <property name="text">
+    <string>&amp;save</string>
+   </property>
+  </action>
+  <action name="m_lpMenuPartlistSaveAs">
+   <property name="text">
+    <string>save &amp;as...</string>
+   </property>
+  </action>
  </widget>
  <layoutdefault spacing="6" margin="11"/>
  <resources/>
diff --git a/cpart.cpp b/cpart.cpp
new file mode 100644
index 0000000..df60a7b
--- /dev/null
+++ b/cpart.cpp
@@ -0,0 +1,76 @@
+#include "cpart.h"
+
+
+cPart::cPart() :
+	m_id(-1),
+	m_szName(""),
+	m_szDescription(""),
+	m_szLink(""),
+	m_lpPartGroup(0)
+{
+
+}
+
+void cPart::setID(const qint32& id)
+{
+	m_id	= id;
+}
+
+qint32 cPart::id()
+{
+	return(m_id);
+}
+
+void cPart::setName(const QString& szName)
+{
+	m_szName	= szName;
+}
+
+QString cPart::name()
+{
+	return(m_szName);
+}
+
+void cPart::setDescription(const QString& szDescription)
+{
+	m_szDescription	= szDescription;
+}
+
+QString cPart::description()
+{
+	return(m_szDescription);
+}
+
+void cPart::setLink(const QString& szLink)
+{
+	m_szLink	= szLink;
+}
+
+QString cPart::link()
+{
+	return(m_szLink);
+}
+
+void cPart::setPartGroup(cPartGroup* lpPartGroup)
+{
+	m_lpPartGroup	= lpPartGroup;
+}
+
+cPartGroup* cPart::partGroup()
+{
+	return(m_lpPartGroup);
+}
+
+cPart* cPartList::add(qint32 id)
+{
+	for(int x = 0;x < count();x++)
+	{
+		if(at(x)->id() == id)
+			return(at(x));
+	}
+
+	cPart*	lpPart	= new cPart;
+	lpPart->setID(id);
+	append(lpPart);
+	return(lpPart);
+}
diff --git a/cpart.h b/cpart.h
new file mode 100644
index 0000000..502f979
--- /dev/null
+++ b/cpart.h
@@ -0,0 +1,46 @@
+#ifndef CPART_H
+#define CPART_H
+
+
+#include "cpartgroup.h"
+
+#include <QMetaType>
+#include <QList>
+
+
+class cPart
+{
+public:
+	cPart();
+
+	void				setID(const qint32& id);
+	qint32				id();
+
+	void				setName(const QString& szName);
+	QString				name();
+
+	void				setDescription(const QString& szDescription);
+	QString				description();
+
+	void				setLink(const QString& szLink);
+	QString				link();
+
+	void				setPartGroup(cPartGroup* lpPartGroup);
+	cPartGroup*			partGroup();
+private:
+	qint32				m_id;
+	QString				m_szName;
+	QString				m_szDescription;
+	QString				m_szLink;
+	cPartGroup*			m_lpPartGroup;
+};
+
+Q_DECLARE_METATYPE(cPart*)
+
+class cPartList : public QList<cPart*>
+{
+public:
+	cPart*				add(qint32 id);
+};
+
+#endif // CPART_H
diff --git a/cparteditdialog.cpp b/cparteditdialog.cpp
new file mode 100644
index 0000000..ee93ec0
--- /dev/null
+++ b/cparteditdialog.cpp
@@ -0,0 +1,215 @@
+#include "cparteditdialog.h"
+#include "ui_cparteditdialog.h"
+
+
+#include <QPushButton>
+
+#include <QSqlQuery>
+#include <QSqlError>
+
+#include <QInputDialog>
+#include <QMessageBox>
+
+#include <QDebug>
+
+
+cPartEditDialog::cPartEditDialog(QWidget *parent) :
+	QDialog(parent),
+	ui(new Ui::cPartEditDialog),
+	m_id(-1),
+	m_lpPart(0),
+	m_lpPartGroupList(0)
+{
+	ui->setupUi(this);
+	ui->m_lpButtonBox->button(QDialogButtonBox::Ok)->setEnabled(false);
+}
+
+cPartEditDialog::~cPartEditDialog()
+{
+	delete ui;
+}
+
+void cPartEditDialog::setValues(cPart* lpPart, cPartGroupList* lpPartGroupList)
+{
+	m_lpPart			= lpPart;
+	m_lpPartGroupList	= lpPartGroupList;
+
+	for(int x = 0;x < m_lpPartGroupList->count();x++)
+		ui->m_lpGroup->addItem(m_lpPartGroupList->at(x)->name(), QVariant::fromValue(m_lpPartGroupList->at(x)));
+
+	if(lpPart)
+	{
+		ui->m_lpName->setText(lpPart->name());
+		ui->m_lpLink->setText(lpPart->link());
+		ui->m_lpDescription->setText(lpPart->description());
+
+		ui->m_lpGroup->setCurrentText(lpPart->partGroup()->name());
+
+		m_id	= lpPart->id();
+	}
+}
+
+void cPartEditDialog::on_m_lpName_textChanged(const QString &arg1)
+{
+	if(arg1.isEmpty())
+		ui->m_lpButtonBox->button(QDialogButtonBox::Ok)->setEnabled(false);
+	else
+		ui->m_lpButtonBox->button(QDialogButtonBox::Ok)->setEnabled(true);
+}
+
+void cPartEditDialog::accept()
+{
+	if(m_id != -1)
+	{
+		if(save())
+			QDialog::accept();
+	}
+	else
+	{
+		if(add())
+			QDialog::accept();
+	}
+}
+
+bool cPartEditDialog::save()
+{
+	QSqlQuery	query;
+	QString		szQuery;
+
+	szQuery		= QString("SELECT name FROM part WHERE name=:name AND id <> :id AND partgroupID = :partgroupID;");
+
+	query.prepare(szQuery);
+	query.bindValue(":name", ui->m_lpName->text());
+	query.bindValue(":id", m_id);
+	query.bindValue(":partgroupID", qvariant_cast<cPartGroup*>(ui->m_lpGroup->currentData(Qt::UserRole))->id());
+	if(!query.exec())
+	{
+		qDebug() << query.lastError().text();
+		return(false);
+	}
+
+	if(query.next())
+	{
+		QMessageBox::critical(this, "ERROR", "Part name already exists.");
+		return(false);
+	}
+
+	szQuery		= QString("UPDATE part SET name=:name, link=:link, description=:description, partgroupID = :partgroupID WHERE id=:id;");
+	query.prepare(szQuery);
+	query.bindValue(":name", ui->m_lpName->text());
+	query.bindValue(":link", ui->m_lpLink->text());
+	query.bindValue(":description", ui->m_lpDescription->document()->toPlainText());
+	query.bindValue(":id", m_id);
+	query.bindValue(":partgroupID", qvariant_cast<cPartGroup*>(ui->m_lpGroup->currentData(Qt::UserRole))->id());
+
+	if(!query.exec())
+	{
+		qDebug() << query.lastError().text();
+		return(false);
+	}
+	return(true);
+}
+
+bool cPartEditDialog::add()
+{
+	QSqlQuery	query;
+	QString		szQuery;
+
+	szQuery		= QString("SELECT name FROM part WHERE name=:name AND partgroupID = :partgroupID;");
+	query.prepare(szQuery);
+	query.bindValue(":name", ui->m_lpName->text());
+	query.bindValue(":partgroupID", qvariant_cast<cPartGroup*>(ui->m_lpGroup->currentData(Qt::UserRole))->id());
+	if(!query.exec())
+	{
+		qDebug() << query.lastError().text();
+		return(false);
+	}
+
+	if(query.next())
+	{
+		QMessageBox::critical(this, "ERROR", "Part already exists.");
+		return(false);
+	}
+
+	szQuery		= QString("INSERT INTO part (name, link, description, partgroupID) VALUES (:name, :link, :description, :partgroupID);");
+	query.prepare(szQuery);
+	query.bindValue(":name", ui->m_lpName->text());
+	query.bindValue(":link", ui->m_lpLink->text());
+	query.bindValue(":description", ui->m_lpDescription->document()->toPlainText());
+	query.bindValue(":partgroupID", qvariant_cast<cPartGroup*>(ui->m_lpGroup->currentData(Qt::UserRole))->id());
+
+	if(!query.exec())
+	{
+		qDebug() << query.lastError().text();
+		return(false);
+	}
+
+	szQuery		= QString("SELECT name FROM part WHERE name=:name AND partgroupID = :partgroupID;");
+	query.prepare(szQuery);
+	query.bindValue(":name", ui->m_lpName->text());
+	query.bindValue(":partgroupID", qvariant_cast<cPartGroup*>(ui->m_lpGroup->currentData(Qt::UserRole))->id());
+	if(!query.exec())
+	{
+		qDebug() << query.lastError().text();
+		return(false);
+	}
+
+	if(!query.next())
+	{
+		qDebug() << query.lastError().text();
+		return(false);
+	}
+
+	m_id	= query.value("id").toInt();
+
+	return(true);
+}
+
+qint32 cPartEditDialog::id()
+{
+	return(m_id);
+}
+
+void cPartEditDialog::on_m_lpGroupAdd_clicked()
+{
+	bool	bOK;
+	QString	szGroup	= QInputDialog::getText(this, tr("Part Group"), tr("Part Group:"), QLineEdit::Normal, "", &bOK);
+
+	if(bOK && !szGroup.isEmpty())
+	{
+		QSqlQuery	query;
+
+		query.prepare("SELECT id FROM partgroup WHERE name=:name;");
+		query.bindValue(":name", szGroup);
+		if(!query.exec())
+			qDebug() << query.lastError().text();
+		else
+		{
+			if(query.next())
+				QMessageBox::information(this, "Group", "Group already exists.");
+			else
+			{
+				query.prepare("INSERT INTO partgroup (name) VALUES(:name);");
+				query.bindValue(":name", szGroup);
+				if(!query.exec())
+					qDebug() << query.lastError().text();
+				else
+				{
+					query.prepare("SELECT id FROM partgroup WHERE name=:name;");
+					query.bindValue(":name", szGroup);
+					if(!query.exec())
+						qDebug() << query.lastError().text();
+					else
+					{
+						cPartGroup*	lpGroup	= m_lpPartGroupList->add(query.value("id").toInt());
+						lpGroup->setName(szGroup);
+
+						setValues(m_lpPart, m_lpPartGroupList);
+
+						ui->m_lpGroup->setCurrentText(szGroup);
+					}
+				}
+			}
+		}
+	}
+}
diff --git a/cparteditdialog.h b/cparteditdialog.h
new file mode 100644
index 0000000..08b78ab
--- /dev/null
+++ b/cparteditdialog.h
@@ -0,0 +1,40 @@
+#ifndef CPARTEDITDIALOG_H
+#define CPARTEDITDIALOG_H
+
+
+#include "cpart.h"
+
+#include <QDialog>
+
+
+namespace Ui {
+class cPartEditDialog;
+}
+
+class cPartEditDialog : public QDialog
+{
+	Q_OBJECT
+
+public:
+	explicit cPartEditDialog(QWidget *parent = 0);
+	~cPartEditDialog();
+
+	qint32					id();
+	void					setValues(cPart* lpPart, cPartGroupList* lpPartGroupList);
+private slots:
+	void					on_m_lpName_textChanged(const QString &arg1);
+	void					on_m_lpGroupAdd_clicked();
+
+private:
+	Ui::cPartEditDialog*	ui;
+	qint32					m_id;
+	cPart*					m_lpPart;
+	cPartGroupList*			m_lpPartGroupList;
+
+	bool					save();
+	bool					add();
+protected:
+	void					accept();
+};
+
+#endif // CPARTEDITDIALOG_H
diff --git a/cparteditdialog.ui b/cparteditdialog.ui
new file mode 100644
index 0000000..3f84a32
--- /dev/null
+++ b/cparteditdialog.ui
@@ -0,0 +1,131 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>cPartEditDialog</class>
+ <widget class="QDialog" name="cPartEditDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>500</width>
+    <height>300</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Part</string>
+  </property>
+  <layout class="QGridLayout" name="gridLayout">
+   <item row="0" column="0">
+    <layout class="QVBoxLayout" name="verticalLayout">
+     <item>
+      <layout class="QHBoxLayout" name="horizontalLayout">
+       <item>
+        <widget class="QLabel" name="label_2">
+         <property name="text">
+          <string>Name:</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QLineEdit" name="m_lpName"/>
+       </item>
+      </layout>
+     </item>
+     <item>
+      <layout class="QHBoxLayout" name="horizontalLayout_2" stretch="0,1,0">
+       <item>
+        <widget class="QLabel" name="label">
+         <property name="text">
+          <string>Group:</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QComboBox" name="m_lpGroup"/>
+       </item>
+       <item>
+        <widget class="QPushButton" name="m_lpGroupAdd">
+         <property name="text">
+          <string>add...</string>
+         </property>
+        </widget>
+       </item>
+      </layout>
+     </item>
+     <item>
+      <layout class="QHBoxLayout" name="horizontalLayout_3">
+       <item>
+        <widget class="QLabel" name="label_3">
+         <property name="text">
+          <string>Web:</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QLineEdit" name="m_lpLink"/>
+       </item>
+      </layout>
+     </item>
+     <item>
+      <layout class="QHBoxLayout" name="horizontalLayout_4">
+       <item>
+        <widget class="QLabel" name="label_4">
+         <property name="text">
+          <string>Description:</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QTextEdit" name="m_lpDescription"/>
+       </item>
+      </layout>
+     </item>
+     <item>
+      <widget class="QDialogButtonBox" name="m_lpButtonBox">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="standardButtons">
+        <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections>
+  <connection>
+   <sender>m_lpButtonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>cPartEditDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>248</x>
+     <y>254</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>157</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>m_lpButtonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>cPartEditDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>316</x>
+     <y>260</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>286</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>
diff --git a/cpartgroup.cpp b/cpartgroup.cpp
new file mode 100644
index 0000000..0db7221
--- /dev/null
+++ b/cpartgroup.cpp
@@ -0,0 +1,62 @@
+#include "cpartgroup.h"
+
+
+cPartGroup::cPartGroup() :
+	m_id(-1),
+	m_szName(""),
+	m_szDescription("")
+{
+
+}
+
+void cPartGroup::setID(const qint32& id)
+{
+	m_id	= id;
+}
+
+qint32 cPartGroup::id()
+{
+	return(m_id);
+}
+
+void cPartGroup::setName(const QString& szName)
+{
+	m_szName	= szName;
+}
+
+QString cPartGroup::name()
+{
+	return(m_szName);
+}
+
+void cPartGroup::setDescription(const QString& szDescription)
+{
+	m_szDescription	= szDescription;
+}
+
+QString cPartGroup::description()
+{
+	return(m_szDescription);
+}
+
+cPartGroup* cPartGroupList::add(qint32 id)
+{
+	cPartGroup*	lpPartGroup	= find(id);
+	if(lpPartGroup)
+		return(lpPartGroup);
+
+	lpPartGroup	= new cPartGroup;
+	lpPartGroup->setID(id);
+	append(lpPartGroup);
+	return(lpPartGroup);
+}
+
+cPartGroup* cPartGroupList::find(qint32 id)
+{
+	for(int x = 0;x < count();x++)
+	{
+		if(at(x)->id() == id)
+			return(at(x));
+	}
+	return(0);
+}
diff --git a/cpartgroup.h b/cpartgroup.h
new file mode 100644
index 0000000..9303cea
--- /dev/null
+++ b/cpartgroup.h
@@ -0,0 +1,37 @@
+#ifndef CPARTGROUP_H
+#define CPARTGROUP_H
+
+
+#include <QMetaType>
+#include <QList>
+
+
+class cPartGroup
+{
+public:
+	cPartGroup();
+
+	void				setID(const qint32& id);
+	qint32				id();
+
+	void				setName(const QString& szName);
+	QString				name();
+
+	void				setDescription(const QString& szDescription);
+	QString				description();
+private:
+	qint32				m_id;
+	QString				m_szName;
+	QString				m_szDescription;
+};
+
+Q_DECLARE_METATYPE(cPartGroup*)
+
+class cPartGroupList : public QList<cPartGroup*>
+{
+public:
+	cPartGroup*		add(qint32 id);
+	cPartGroup*		find(qint32 id);
+};
+
+#endif // CPARTGROUP_H
diff --git a/cpartlistwindow.cpp b/cpartlistwindow.cpp
index a67bfcf..b9aa051 100644
--- a/cpartlistwindow.cpp
+++ b/cpartlistwindow.cpp
@@ -2,15 +2,193 @@
 #include "ui_cpartlistwindow.h"
 
 
+#include <QSqlQuery>
+#include <QSqlError>
+
+#include <QMessageBox>
+#include <QDebug>
+
+
 cPartlistWindow::cPartlistWindow(QWidget *parent) :
 	QWidget(parent),
-	ui(new Ui::cPartlistWindow)
+	ui(new Ui::cPartlistWindow),
+	m_lpMainTab(0),
+	m_id(-1),
+	m_bSomethingChanged(false)
 {
 	ui->setupUi(this);
 }
 
-
 cPartlistWindow::~cPartlistWindow()
 {
 	delete ui;
 }
+
+void cPartlistWindow::setMainTab(QTabWidget *lpMainTab)
+{
+	m_lpMainTab	= lpMainTab;
+}
+
+void cPartlistWindow::setPartlistName(const QString& szPartlistName)
+{
+	setWindowTitle(szPartlistName);
+	ui->m_lpName->setText(szPartlistName);
+	m_bSomethingChanged	= true;
+}
+
+QString cPartlistWindow::partlistName()
+{
+	return(ui->m_lpName->text());
+}
+
+void cPartlistWindow::setPartlistID(const qint32& id)
+{
+	m_id	= id;
+
+	QSqlQuery	query;
+
+	query.prepare("SELECT name, description FROM partlist WHERE id=:id;");
+	query.bindValue(":id", m_id);
+
+	if(!query.exec())
+	{
+		qDebug() << query.lastError().text();
+		return;
+	}
+
+	if(!query.next())
+	{
+		qDebug() << query.lastError().text();
+		return;
+	}
+
+	ui->m_lpName->setText(query.value("name").toString());
+	ui->m_lpDescription->setText(query.value("description").toString());
+
+	if(m_lpMainTab)
+	{
+		m_lpMainTab->setTabText(m_lpMainTab->currentIndex(), query.value("name").toString());
+		partlistChanged(this);
+	}
+}
+
+void cPartlistWindow::on_m_lpName_textChanged(const QString &arg1)
+{
+	if(m_lpMainTab)
+	{
+		m_bSomethingChanged	= true;
+		m_lpMainTab->setTabText(m_lpMainTab->currentIndex(), arg1);
+		partlistChanged(this);
+	}
+}
+
+bool cPartlistWindow::close()
+{
+	qint32	ret	= QMessageBox::question(this, tr("Close"), tr("Do you want to save changes?"), QMessageBox::Yes, QMessageBox::No, QMessageBox::Abort);
+
+	switch(ret)
+	{
+	case QMessageBox::Yes:
+		return(save());
+		break;
+	case QMessageBox::No:
+		return(false);
+		break;
+	case QMessageBox::Abort:
+		return(false);
+	}
+	return(false);
+}
+
+bool cPartlistWindow::save()
+{
+	if(ui->m_lpName->text().isEmpty())
+	{
+		QMessageBox::critical(this, "Save", "No name given for Partlist.");
+		return(false);
+	}
+
+	if(m_id == -1)
+		saveAs();
+
+	return(save(m_id));
+}
+
+bool cPartlistWindow::saveAs()
+{
+	if(ui->m_lpName->text().isEmpty())
+	{
+		QMessageBox::critical(this, "Save", "No name given for Partlist.");
+		return(false);
+	}
+
+	QSqlQuery	query;
+
+	query.prepare("SELECT id FROM partlist WHERE name = :name;");
+	query.bindValue(":name", ui->m_lpName->text());
+	if(!query.exec())
+	{
+		qDebug() << query.lastError().text();
+		return(false);
+	}
+
+	if(query.next())
+	{
+		QMessageBox::critical(this, "Save", "Partlist already exists.");
+		return(false);
+	}
+
+	query.prepare("INSERT INTO partlist (name, description) VALUES (:name, :description);");
+	query.bindValue(":name", ui->m_lpName->text());
+	query.bindValue(":description", ui->m_lpDescription->document()->toPlainText());
+	if(!query.exec())
+	{
+		qDebug() << query.lastError().text();
+		return(false);
+	}
+
+	query.prepare("SELECT id FROM partlist WHERE name = :name;");
+	query.bindValue(":name", ui->m_lpName->text());
+	if(!query.exec())
+	{
+		qDebug() << query.lastError().text();
+		return(false);
+	}
+
+	if(!query.next())
+		return(false);
+
+	m_id	= query.value("id").toInt();
+
+	return(save(m_id));
+}
+
+bool cPartlistWindow::save(qint32 id)
+{
+	QSqlQuery	query;
+
+	query.prepare("DELETE FROM partlistitem WHERE partlistID = :partlistID;");
+	query.bindValue(":partlistID", id);
+	if(!query.exec())
+	{
+		qDebug() << query.lastError().text();
+		return(false);
+	}
+
+	query.prepare("UPDATE partlist SET name=:name, description=:description WHERE id=:id;");
+	query.bindValue(":name", ui->m_lpName->text());
+	query.bindValue(":description", ui->m_lpDescription->document()->toPlainText());
+	query.bindValue(":id", id);
+	if(!query.exec())
+	{
+		qDebug() << query.lastError().text();
+		return(false);
+	}
+
+	return(true);
+}
+
+bool cPartlistWindow::somethingChanged()
+{
+	return(m_bSomethingChanged);
+}
diff --git a/cpartlistwindow.h b/cpartlistwindow.h
index 8915657..ad578cf 100644
--- a/cpartlistwindow.h
+++ b/cpartlistwindow.h
@@ -2,6 +2,7 @@
 #define CPARTLISTWINDOW_H
 
 #include <QWidget>
+#include <QTabWidget>
 
 namespace Ui {
 class cPartlistWindow;
@@ -15,8 +16,31 @@ public:
 	explicit cPartlistWindow(QWidget *parent = 0);
 	~cPartlistWindow();
 
+	void				setMainTab(QTabWidget* lpMainTab);
+
+	void				setPartlistName(const QString& szPartlistName);
+	QString				partlistName();
+
+	void				setPartlistID(const qint32& id);
+
+	bool				close();
+	bool				save();
+	bool				saveAs();
+
+	bool				somethingChanged();
+private slots:
+	void				on_m_lpName_textChanged(const QString &arg1);
+
+signals:
+	void				partlistChanged(QWidget* lpWidget) const;
+
 private:
 	Ui::cPartlistWindow *ui;
+	QTabWidget*			m_lpMainTab;
+	qint32				m_id;
+	bool				m_bSomethingChanged;
+
+	bool				save(qint32 id);
 };
 
 #endif // CPARTLISTWINDOW_H
diff --git a/cpartlistwindow.ui b/cpartlistwindow.ui
index 4eb65ac..502db6a 100644
--- a/cpartlistwindow.ui
+++ b/cpartlistwindow.ui
@@ -6,26 +6,101 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>593</width>
-    <height>560</height>
+    <width>793</width>
+    <height>700</height>
    </rect>
   </property>
   <property name="windowTitle">
    <string>Form</string>
   </property>
-  <widget class="QPushButton" name="pushButton">
-   <property name="geometry">
-    <rect>
-     <x>130</x>
-     <y>190</y>
-     <width>75</width>
-     <height>23</height>
-    </rect>
-   </property>
-   <property name="text">
-    <string>PushButton</string>
-   </property>
-  </widget>
+  <layout class="QGridLayout" name="gridLayout_2">
+   <item row="0" column="0">
+    <layout class="QVBoxLayout" name="verticalLayout_2" stretch="1,100">
+     <item>
+      <layout class="QHBoxLayout" name="horizontalLayout_4" stretch="2,5">
+       <item>
+        <layout class="QVBoxLayout" name="verticalLayout">
+         <item>
+          <layout class="QHBoxLayout" name="horizontalLayout">
+           <item>
+            <widget class="QLabel" name="label">
+             <property name="text">
+              <string>Name:</string>
+             </property>
+            </widget>
+           </item>
+           <item>
+            <widget class="QLineEdit" name="m_lpName"/>
+           </item>
+          </layout>
+         </item>
+         <item>
+          <layout class="QHBoxLayout" name="horizontalLayout_2">
+           <item>
+            <widget class="QLabel" name="label_3">
+             <property name="text">
+              <string>Costs:</string>
+             </property>
+            </widget>
+           </item>
+           <item>
+            <widget class="QLineEdit" name="m_lpCosts">
+             <property name="readOnly">
+              <bool>true</bool>
+             </property>
+            </widget>
+           </item>
+          </layout>
+         </item>
+         <item>
+          <spacer name="verticalSpacer">
+           <property name="orientation">
+            <enum>Qt::Vertical</enum>
+           </property>
+           <property name="sizeHint" stdset="0">
+            <size>
+             <width>20</width>
+             <height>40</height>
+            </size>
+           </property>
+          </spacer>
+         </item>
+        </layout>
+       </item>
+       <item>
+        <layout class="QHBoxLayout" name="horizontalLayout_3">
+         <item>
+          <widget class="QLabel" name="label_2">
+           <property name="text">
+            <string>Description:</string>
+           </property>
+           <property name="alignment">
+            <set>Qt::AlignLeading|Qt::AlignLeft|Qt::AlignTop</set>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QTextEdit" name="m_lpDescription"/>
+         </item>
+        </layout>
+       </item>
+      </layout>
+     </item>
+     <item>
+      <widget class="QGroupBox" name="m_lpGroupBox">
+       <property name="title">
+        <string>Parts</string>
+       </property>
+       <layout class="QGridLayout" name="gridLayout">
+        <item row="0" column="0">
+         <widget class="QTreeView" name="m_lpPartList"/>
+        </item>
+       </layout>
+      </widget>
+     </item>
+    </layout>
+   </item>
+  </layout>
  </widget>
  <resources/>
  <connections/>
diff --git a/cpartwindow.cpp b/cpartwindow.cpp
index 4f4d293..c3c8a60 100644
--- a/cpartwindow.cpp
+++ b/cpartwindow.cpp
@@ -1,15 +1,271 @@
 #include "cpartwindow.h"
 #include "ui_cpartwindow.h"
 
+#include "cparteditdialog.h"
+
+#include <QString>
+#include <QSqlQuery>
+#include <QSqlError>
+
+#include <QMenu>
+
+#include <QMessageBox>
+#include <QDebug>
+
 
 cPartWindow::cPartWindow(QWidget *parent) :
 	QWidget(parent),
 	ui(new Ui::cPartWindow)
 {
 	ui->setupUi(this);
+
+	m_lpPartListModel	= new QStandardItemModel(0, 2);
+	ui->m_lpPartList->setModel(m_lpPartListModel);
 }
 
 cPartWindow::~cPartWindow()
 {
 	delete ui;
 }
+
+void cPartWindow::setList(cPartGroupList* lpPartGroupList, cPartList* lpPartList)
+{
+	m_lpPartGroupList	= lpPartGroupList;
+	m_lpPartList		= lpPartList;
+
+	showPartList();
+}
+
+void cPartWindow::showPartList()
+{
+	m_lpPartListModel->clear();
+
+	QStringList	header;
+	header << tr("Name") << tr("description") << tr("link");
+
+	m_lpPartListModel->setHorizontalHeaderLabels(header);
+
+	qint32			iOldPartGroupID	= -1;
+	QStandardItem*	lpGroupItem		= 0;
+
+	for(int x = 0;x < m_lpPartList->count();x++)
+	{
+		QList<QStandardItem*>	lpItems;
+		cPart*					lpPart		= m_lpPartList->at(x);
+		cPartGroup*				lpPartGroup	= lpPart->partGroup();
+
+		if(lpPartGroup->id() != iOldPartGroupID)
+		{
+			iOldPartGroupID	= lpPartGroup->id();
+			lpGroupItem	= new QStandardItem(lpPartGroup->name());
+			m_lpPartListModel->appendRow(lpGroupItem);
+		}
+
+		for(int z = 0;z < header.count();z++)
+			lpItems.append(new QStandardItem);
+
+		lpItems.at(0)->setText(lpPart->name());
+		lpItems.at(1)->setText(lpPart->description());
+		lpItems.at(2)->setText(lpPart->link());
+
+		for(int z = 0;z < header.count();z++)
+			lpItems.at(z)->setData(QVariant::fromValue(lpPart), Qt::UserRole);
+
+		lpGroupItem->appendRow(lpItems);
+	}
+
+	for(int z = 0;z < header.count();z++)
+		ui->m_lpPartList->resizeColumnToContents(z);
+
+	ui->m_lpPartList->expandAll();
+
+	for(int z = 0;z < header.count();z++)
+		ui->m_lpPartList->resizeColumnToContents(z);
+}
+
+bool cPartWindow::somethingSelected()
+{
+	if(ui->m_lpPartList->selectionModel()->selectedRows().count())
+		return(true);
+	return(false);
+}
+
+bool cPartWindow::groupSelected()
+{
+	QStandardItem*	lpItem	= m_lpPartListModel->itemFromIndex(ui->m_lpPartList->selectionModel()->currentIndex());
+	if(!lpItem)
+		return(false);
+
+	if(lpItem->parent())
+		return(false);
+	return(true);
+}
+
+void cPartWindow::on_m_lpPartList_clicked(const QModelIndex &index)
+{
+	selectionChanged(index);
+}
+
+void cPartWindow::on_m_lpPartList_customContextMenuRequested(const QPoint &pos)
+{
+	QMenu*	lpMenu	= new QMenu(this);
+
+	lpMenu->addAction("add", this, SLOT(onAdd()));
+
+	if(somethingSelected())
+	{
+		if(!groupSelected())
+		{
+			lpMenu->addAction("edit", this, SLOT(onEdit()));
+			lpMenu->addAction("delete", this, SLOT(onDelete()));
+		}
+	}
+
+	lpMenu->popup(ui->m_lpPartList->viewport()->mapToGlobal(pos));
+}
+
+void cPartWindow::addPart()
+{
+	onAdd();
+}
+
+void cPartWindow::editPart()
+{
+	onEdit();
+}
+
+void cPartWindow::deletePart()
+{
+	onDelete();
+}
+
+void cPartWindow::onAdd()
+{
+	cPartEditDialog*	lpDialog	= new cPartEditDialog(this);
+	lpDialog->setValues(0, m_lpPartGroupList);
+
+	if(lpDialog->exec() == QDialog::Rejected)
+	{
+		delete lpDialog;
+		return;
+	}
+
+	qint32	id	= lpDialog->id();
+
+	delete lpDialog;
+
+	partChanged(0);
+	showPartList();
+
+	for(int x = 0;x < m_lpPartListModel->rowCount();x++)
+	{
+		QStandardItem*	lpItem			= m_lpPartListModel->item(x, 0);
+		if(!lpItem)
+			continue;
+
+		cPart*	lpPart	= qvariant_cast<cPart*>(lpItem->data(Qt::UserRole));
+		if(!lpPart)
+			continue;
+
+		if(lpPart->id() == id)
+		{
+			ui->m_lpPartList->setCurrentIndex(lpItem->index());
+			ui->m_lpPartList->scrollTo(lpItem->index());
+			return;
+		}
+	}
+}
+
+void cPartWindow::onEdit()
+{
+	if(!ui->m_lpPartList->selectionModel()->selectedRows().count())
+		return;
+
+	QStandardItem*		lpItem			= m_lpPartListModel->itemFromIndex(ui->m_lpPartList->selectionModel()->selectedIndexes().at(0));
+	if(!lpItem)
+		return;
+
+	cPart*				lpPart			= qvariant_cast<cPart*>(lpItem->data(Qt::UserRole));
+	if(!lpPart)
+		return;
+
+	cPartEditDialog*	lpDialog		= new cPartEditDialog(this);
+	lpDialog->setValues(lpPart, m_lpPartGroupList);
+
+	if(lpDialog->exec() == QDialog::Rejected)
+	{
+		delete lpDialog;
+		return;
+	}
+
+	qint32	id	= lpDialog->id();
+
+	delete lpDialog;
+
+	partChanged(0);
+	showPartList();
+
+	for(int x = 0;x < m_lpPartListModel->rowCount();x++)
+	{
+		QStandardItem*	lpItem			= m_lpPartListModel->item(x, 0);
+		if(!lpItem)
+			continue;
+
+		cPart*	lpPart					= qvariant_cast<cPart*>(lpItem->data(Qt::UserRole));
+		if(!lpPart)
+			continue;
+
+		if(lpPart->id() == id)
+		{
+			ui->m_lpPartList->setCurrentIndex(lpItem->index());
+			ui->m_lpPartList->scrollTo(lpItem->index());
+			return;
+		}
+	}
+}
+
+void cPartWindow::onDelete()
+{
+	for(int x = 0;x < ui->m_lpPartList->selectionModel()->selectedIndexes().count();x++)
+	{
+		if(ui->m_lpPartList->selectionModel()->selectedIndexes().at(x).column())
+			continue;
+
+		QStandardItem*	lpItem			= m_lpPartListModel->itemFromIndex(ui->m_lpPartList->selectionModel()->selectedIndexes().at(x));
+		if(!lpItem)
+			continue;
+
+		cPart*			lpPart			= qvariant_cast<cPart*>(lpItem->data(Qt::UserRole));
+		if(!lpPart)
+			continue;
+
+		QSqlQuery	query;
+		QString		szQuery;
+
+		szQuery		= QString("SELECT * FROM partlistitem WHERE partID = %1;").arg(lpPart->id());
+		if(!query.exec(szQuery))
+		{
+			qDebug() << query.lastError().text();
+			continue;
+		}
+
+		if(query.next())
+		{
+			QMessageBox::critical(this, "ERROR", QString("Part '%1' still in use.\nUnable to delete.").arg(lpPart->name()));
+			continue;
+		}
+
+		if(QMessageBox::question(this, "DELETE", QString("Are you sure to delete part '%1'?").arg(lpPart->name())) == QMessageBox::No)
+			continue;
+
+		szQuery	= QString("DELETE FROM part WHERE id=%1;").arg(lpPart->id());
+		if(!query.exec(szQuery))
+		{
+			qDebug() << query.lastError().text();
+			continue;
+		}
+	}
+
+	partChanged(0);
+	showPartList();
+}
diff --git a/cpartwindow.h b/cpartwindow.h
index 230118d..1270ccb 100644
--- a/cpartwindow.h
+++ b/cpartwindow.h
@@ -1,7 +1,13 @@
 #ifndef CPARTWINDOW_H
 #define CPARTWINDOW_H
 
+
+#include "cpart.h"
+#include "cpartgroup.h"
+
 #include <QWidget>
+#include <QStandardItemModel>
+
 
 namespace Ui {
 class cPartWindow;
@@ -15,8 +21,33 @@ public:
 	explicit cPartWindow(QWidget *parent = 0);
 	~cPartWindow();
 
+	void				setList(cPartGroupList* lpPartGroupList, cPartList* lpPartList);
+	bool				somethingSelected();
+	bool				groupSelected();
+
+	void				addPart();
+	void				editPart();
+	void				deletePart();
+private slots:
+	void				on_m_lpPartList_clicked(const QModelIndex &index);
+	void				on_m_lpPartList_customContextMenuRequested(const QPoint &pos);
+
+	void				onAdd();
+	void				onEdit();
+	void				onDelete();
+
+signals:
+	void				selectionChanged(const QModelIndex& index) const;
+	void				partGroupChanged(cPartGroup* lpPartGroup) const;
+	void				partChanged(cPart* lpPart) const;
+
 private:
-	Ui::cPartWindow *ui;
+	Ui::cPartWindow*	ui;
+	QStandardItemModel*	m_lpPartListModel;
+	cPartGroupList*		m_lpPartGroupList;
+	cPartList*			m_lpPartList;
+
+	void				showPartList();
 };
 
 #endif // CPARTWINDOW_H
diff --git a/cpartwindow.ui b/cpartwindow.ui
index 27323f3..5d31acc 100644
--- a/cpartwindow.ui
+++ b/cpartwindow.ui
@@ -15,7 +15,20 @@
   </property>
   <layout class="QGridLayout" name="gridLayout">
    <item row="0" column="0">
-    <widget class="QTreeView" name="m_lpPartList"/>
+    <widget class="QTreeView" name="m_lpPartList">
+     <property name="contextMenuPolicy">
+      <enum>Qt::CustomContextMenu</enum>
+     </property>
+     <property name="editTriggers">
+      <set>QAbstractItemView::NoEditTriggers</set>
+     </property>
+     <property name="alternatingRowColors">
+      <bool>true</bool>
+     </property>
+     <property name="selectionMode">
+      <enum>QAbstractItemView::ExtendedSelection</enum>
+     </property>
+    </widget>
    </item>
   </layout>
  </widget>
diff --git a/qtPartlist.pro b/qtPartlist.pro
index cbafa85..a121106 100644
--- a/qtPartlist.pro
+++ b/qtPartlist.pro
@@ -31,7 +31,10 @@ SOURCES += \
     cdistributorwindow.cpp \
     cpartwindow.cpp \
     cdistributor.cpp \
-    cdistributoreditdialog.cpp
+    cdistributoreditdialog.cpp \
+    cpartgroup.cpp \
+    cpart.cpp \
+    cparteditdialog.cpp
 
 HEADERS += \
         cmainwindow.h \
@@ -40,11 +43,15 @@ HEADERS += \
     cdistributorwindow.h \
     cpartwindow.h \
     cdistributor.h \
-    cdistributoreditdialog.h
+    cdistributoreditdialog.h \
+    cpartgroup.h \
+    cpart.h \
+    cparteditdialog.h
 
 FORMS += \
         cmainwindow.ui \
     cpartlistwindow.ui \
     cdistributorwindow.ui \
     cpartwindow.ui \
-    cdistributoreditdialog.ui
+    cdistributoreditdialog.ui \
+    cparteditdialog.ui
diff --git a/qtPartlist.pro.user b/qtPartlist.pro.user
index 2704b8b..bc81bc4 100644
--- a/qtPartlist.pro.user
+++ b/qtPartlist.pro.user
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE QtCreatorProject>
-<!-- Written by QtCreator 4.5.0, 2017-12-28T17:53:22. -->
+<!-- Written by QtCreator 4.5.0, 2018-01-05T10:47:46. -->
 <qtcreator>
  <data>
   <variable>EnvironmentId</variable>