Index: ActiviteitenOpvolging/ActiviteitenOpvolging/ActiviteitenOpvolging.vbproj
===================================================================
diff -u -r1681 -r1682
--- ActiviteitenOpvolging/ActiviteitenOpvolging/ActiviteitenOpvolging.vbproj	(.../ActiviteitenOpvolging.vbproj)	(revision 1681)
+++ ActiviteitenOpvolging/ActiviteitenOpvolging/ActiviteitenOpvolging.vbproj	(.../ActiviteitenOpvolging.vbproj)	(revision 1682)
@@ -92,6 +92,7 @@
       <SubType>Form</SubType>
     </Compile>
     <Compile Include="exceptions\InternalException.vb" />
+    <Compile Include="grids\IMainForm.vb" />
     <Compile Include="grids\IUserControl.vb" />
     <Compile Include="mappers\CacheMapper.vb" />
     <Compile Include="My Project\AssemblyInfo.vb" />
Index: ActiviteitenOpvolging/ActiviteitenOpvolging/grids/DataGridViewUserControl.Designer.vb
===================================================================
diff -u -r1681 -r1682
--- ActiviteitenOpvolging/ActiviteitenOpvolging/grids/DataGridViewUserControl.Designer.vb	(.../DataGridViewUserControl.Designer.vb)	(revision 1681)
+++ ActiviteitenOpvolging/ActiviteitenOpvolging/grids/DataGridViewUserControl.Designer.vb	(.../DataGridViewUserControl.Designer.vb)	(revision 1682)
@@ -26,6 +26,9 @@
         Me.GridLabel = New System.Windows.Forms.Label()
         Me.BatchColumn = New System.Windows.Forms.DataGridViewTextBoxColumn()
         Me.DueOut = New System.Windows.Forms.DataGridViewTextBoxColumn()
+        Me.ProductGroup = New System.Windows.Forms.DataGridViewTextBoxColumn()
+        Me.DeliverToResource = New System.Windows.Forms.DataGridViewTextBoxColumn()
+        Me.Remark = New System.Windows.Forms.DataGridViewTextBoxColumn()
         CType(Me.WorkItemsDataGridView,System.ComponentModel.ISupportInitialize).BeginInit
         Me.SuspendLayout
         '
@@ -35,7 +38,7 @@
             Or System.Windows.Forms.AnchorStyles.Left)  _
             Or System.Windows.Forms.AnchorStyles.Right),System.Windows.Forms.AnchorStyles)
         Me.WorkItemsDataGridView.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize
-        Me.WorkItemsDataGridView.Columns.AddRange(New System.Windows.Forms.DataGridViewColumn() {Me.BatchColumn, Me.DueOut})
+        Me.WorkItemsDataGridView.Columns.AddRange(New System.Windows.Forms.DataGridViewColumn() {Me.BatchColumn, Me.DueOut, Me.ProductGroup, Me.DeliverToResource, Me.Remark})
         Me.WorkItemsDataGridView.Location = New System.Drawing.Point(0, 29)
         Me.WorkItemsDataGridView.Name = "WorkItemsDataGridView"
         Me.WorkItemsDataGridView.Size = New System.Drawing.Size(798, 534)
@@ -62,6 +65,21 @@
         Me.DueOut.HeaderText = "DueOut"
         Me.DueOut.Name = "DueOut"
         '
+        'ProductGroup
+        '
+        Me.ProductGroup.HeaderText = "Product"
+        Me.ProductGroup.Name = "ProductGroup"
+        '
+        'DeliverToResource
+        '
+        Me.DeliverToResource.HeaderText = "Aan"
+        Me.DeliverToResource.Name = "DeliverToResource"
+        '
+        'Remark
+        '
+        Me.Remark.HeaderText = "Opmerking"
+        Me.Remark.Name = "Remark"
+        '
         'DataGridViewUserControl
         '
         Me.AutoScaleDimensions = New System.Drawing.SizeF(6!, 13!)
@@ -80,4 +98,7 @@
     Friend WithEvents GridLabel As Label
     Friend WithEvents BatchColumn As DataGridViewTextBoxColumn
     Friend WithEvents DueOut As DataGridViewTextBoxColumn
+    Friend WithEvents ProductGroup As DataGridViewTextBoxColumn
+    Friend WithEvents DeliverToResource As DataGridViewTextBoxColumn
+    Friend WithEvents Remark As DataGridViewTextBoxColumn
 End Class
Index: ActiviteitenOpvolging/ActiviteitenOpvolging/grids/DataGridViewUserControl.resx
===================================================================
diff -u -r1681 -r1682
--- ActiviteitenOpvolging/ActiviteitenOpvolging/grids/DataGridViewUserControl.resx	(.../DataGridViewUserControl.resx)	(revision 1681)
+++ ActiviteitenOpvolging/ActiviteitenOpvolging/grids/DataGridViewUserControl.resx	(.../DataGridViewUserControl.resx)	(revision 1682)
@@ -123,4 +123,13 @@
   <metadata name="DueOut.UserAddedColumn" type="System.Boolean, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
     <value>True</value>
   </metadata>
+  <metadata name="ProductGroup.UserAddedColumn" type="System.Boolean, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>True</value>
+  </metadata>
+  <metadata name="DeliverToResource.UserAddedColumn" type="System.Boolean, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>True</value>
+  </metadata>
+  <metadata name="Remark.UserAddedColumn" type="System.Boolean, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>True</value>
+  </metadata>
 </root>
\ No newline at end of file
Index: ActiviteitenOpvolging/ActiviteitenOpvolging/ActiviteitenOpvolging.vbproj.DotSettings
===================================================================
diff -u -r1681 -r1682
--- ActiviteitenOpvolging/ActiviteitenOpvolging/ActiviteitenOpvolging.vbproj.DotSettings	(.../ActiviteitenOpvolging.vbproj.DotSettings)	(revision 1681)
+++ ActiviteitenOpvolging/ActiviteitenOpvolging/ActiviteitenOpvolging.vbproj.DotSettings	(.../ActiviteitenOpvolging.vbproj.DotSettings)	(revision 1682)
@@ -7,4 +7,5 @@
 	<s:Boolean x:Key="/Default/CodeInspection/NamespaceProvider/NamespaceFoldersToSkip/=domain_005Cmanagers_005Cimplementations/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/CodeInspection/NamespaceProvider/NamespaceFoldersToSkip/=enums/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/CodeInspection/NamespaceProvider/NamespaceFoldersToSkip/=exceptions/@EntryIndexedValue">True</s:Boolean>
+	<s:Boolean x:Key="/Default/CodeInspection/NamespaceProvider/NamespaceFoldersToSkip/=grids/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/CodeInspection/NamespaceProvider/NamespaceFoldersToSkip/=mappers/@EntryIndexedValue">True</s:Boolean></wpf:ResourceDictionary>
\ No newline at end of file
Index: ActiviteitenOpvolging/ActiviteitenOpvolging/ActiviteitenOpvolgingForm.vb
===================================================================
diff -u -r1681 -r1682
--- ActiviteitenOpvolging/ActiviteitenOpvolging/ActiviteitenOpvolgingForm.vb	(.../ActiviteitenOpvolgingForm.vb)	(revision 1681)
+++ ActiviteitenOpvolging/ActiviteitenOpvolging/ActiviteitenOpvolgingForm.vb	(.../ActiviteitenOpvolgingForm.vb)	(revision 1682)
@@ -1,20 +1,26 @@
-Imports System.ComponentModel
-Imports ActiviteitenOpvolging.configs
+Imports ActiviteitenOpvolging.configs
 
 Public Class ActiviteitenOpvolgingForm
-    Private ReadOnly _userControls As New List(Of IDataGridUserControl)
+    Implements IMainForm
+
+    Private _userControls As List(Of IDataGridUserControl)
     Private _workItemManager As IWorkItemManager
 
     Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
         Try
+            'Variable initialisation, putting this in a constructor breaks 'DatagridViewControlsFlowLayoutPanel.Controls.Add' -> null reference exception.
+            _userControls = New List(Of IDataGridUserControl)
+            _workItemManager = New WorkItemManager
+
             'Set the color of the form.
             BackColor = Color.White
             ForeColor = Color.Black
             'Update size and set center position.
-            Size = New System.Drawing.Size(800, 600)
+            Size = New System.Drawing.Size(1280, 1024)
             StartPosition = FormStartPosition.CenterScreen
             'Set the title name of the form from the config.
-            Text = $"Activiteiten opvolging - {ConfigsLoader.AppName}"
+            Text = $"RDB - Activiteiten opvolging - {ConfigsLoader.AppName}"
+            GridLabel.Text = ConfigsLoader.AppName
 
             'Load the user controls with the data grids.
             LoadDataGridUserControls()
@@ -29,10 +35,12 @@
     ''' </summary>
     Private Sub LoadDataGridUserControls()
         'Loop for every data grid view, number of grids gotten from config.
-        For i = 0 To ConfigsLoader.NumberOfGrids - 1
-            Dim userControl As New DataGridViewUserControl
+        For gridNumber = 0 To ConfigsLoader.NumberOfGrids - 1
+            'Initialise the user control and set parent form and grid number. 
+            Dim userControl As New DataGridViewUserControl(Me, gridNumber)
+            'Set other parameters.
             With userControl
-                .Size = New System.Drawing.Size(300, 250)
+                .Size = New System.Drawing.Size(600, 250)
             End With
 
             'Add to list of user controls.
@@ -41,4 +49,10 @@
             DatagridViewControlsFlowLayoutPanel.Controls.Add(userControl)
         Next
     End Sub
+
+    ''' <inheritdoc/>
+    Public Function GetWorkItems(gridNumber As Integer) As List(Of IWorkItem)Implements IMainForm.GetWorkItems
+        Return _workItemManager.GiveWorkItems(gridNumber)
+    End Function
+
 End Class
Index: ActiviteitenOpvolging/ActiviteitenOpvolging/ActiviteitenOpvolgingForm.Designer.vb
===================================================================
diff -u -r1681 -r1682
--- ActiviteitenOpvolging/ActiviteitenOpvolging/ActiviteitenOpvolgingForm.Designer.vb	(.../ActiviteitenOpvolgingForm.Designer.vb)	(revision 1681)
+++ ActiviteitenOpvolging/ActiviteitenOpvolging/ActiviteitenOpvolgingForm.Designer.vb	(.../ActiviteitenOpvolgingForm.Designer.vb)	(revision 1682)
@@ -23,7 +23,6 @@
     <System.Diagnostics.DebuggerStepThrough()> _
     Private Sub InitializeComponent()
         Me.DatagridViewControlsFlowLayoutPanel = New System.Windows.Forms.FlowLayoutPanel()
-        Me.Button1 = New System.Windows.Forms.Button()
         Me.GridLabel = New System.Windows.Forms.Label()
         Me.SuspendLayout
         '
@@ -37,16 +36,6 @@
         Me.DatagridViewControlsFlowLayoutPanel.Size = New System.Drawing.Size(1240, 899)
         Me.DatagridViewControlsFlowLayoutPanel.TabIndex = 0
         '
-        'Button1
-        '
-        Me.Button1.Anchor = CType((System.Windows.Forms.AnchorStyles.Bottom Or System.Windows.Forms.AnchorStyles.Right),System.Windows.Forms.AnchorStyles)
-        Me.Button1.Location = New System.Drawing.Point(831, 951)
-        Me.Button1.Name = "Button1"
-        Me.Button1.Size = New System.Drawing.Size(75, 23)
-        Me.Button1.TabIndex = 1
-        Me.Button1.Text = "Button1"
-        Me.Button1.UseVisualStyleBackColor = true
-        '
         'GridLabel
         '
         Me.GridLabel.AutoSize = true
@@ -64,7 +53,6 @@
         Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
         Me.ClientSize = New System.Drawing.Size(1264, 986)
         Me.Controls.Add(Me.GridLabel)
-        Me.Controls.Add(Me.Button1)
         Me.Controls.Add(Me.DatagridViewControlsFlowLayoutPanel)
         Me.Name = "ActiviteitenOpvolgingForm"
         Me.Text = "Activiteiten Form"
@@ -74,6 +62,5 @@
 End Sub
 
     Friend WithEvents DatagridViewControlsFlowLayoutPanel As FlowLayoutPanel
-    Friend WithEvents Button1 As Button
     Friend WithEvents GridLabel As Label
 End Class
Index: ActiviteitenOpvolging/ActiviteitenOpvolging/grids/IMainForm.vb
===================================================================
diff -u
--- ActiviteitenOpvolging/ActiviteitenOpvolging/grids/IMainForm.vb	(revision 0)
+++ ActiviteitenOpvolging/ActiviteitenOpvolging/grids/IMainForm.vb	(revision 1682)
@@ -0,0 +1,9 @@
+Public Interface IMainForm
+
+    ''' <summary>
+    ''' Fetch the work items for a specific grid.
+    ''' </summary>
+    ''' <param name="gridNumber">The index of the grid, 0 based</param>
+    ''' <returns>A list containing all work items</returns>
+    Function GetWorkItems(gridNumber As Integer) As List(Of IWorkItem)
+End Interface
Index: ActiviteitenOpvolging/ActiviteitenOpvolging/grids/DataGridViewUserControl.vb
===================================================================
diff -u -r1681 -r1682
--- ActiviteitenOpvolging/ActiviteitenOpvolging/grids/DataGridViewUserControl.vb	(.../DataGridViewUserControl.vb)	(revision 1681)
+++ ActiviteitenOpvolging/ActiviteitenOpvolging/grids/DataGridViewUserControl.vb	(.../DataGridViewUserControl.vb)	(revision 1682)
@@ -1,19 +1,77 @@
-Public Class DataGridViewUserControl
+Imports System.ComponentModel
+Imports ActiviteitenOpvolging.configs
+
+Public Class DataGridViewUserControl
     Implements IDataGridUserControl
+    Private ReadOnly _parentForm As IMainForm
+    Private ReadOnly _gridNumber As Integer
 
-    Sub New ()
+    Sub New()
+        ' This call is required by the designer.
+        InitializeComponent()
+    End Sub
 
-    Private Sub Button1_Click(sender As Object, e As EventArgs) 
-        MessageBox.Show($"This is a test, I'm user control.")
+    ''' <summary>
+    ''' Initialises the user form.
+    ''' </summary>
+    ''' <param name="parentForm">The form containing this user control</param>
+    ''' <param name="gridNumber">The index of the grid, 0 based</param>
+    Sub New(parentForm As IMainForm, gridNumber As Integer)
+        'Call base constructor.
+        Me.New()
+        'Set parameters.
+
+        'Parent form.
+        'Value can't be Nothing.
+        If parentForm Is Nothing Then Throw New InternalException($"The parent form can't be 'Nothing' in a {Me.Name}.")
+        _parentForm = parentForm
+
+        'Grid number.
+        _gridNumber = gridNumber
     End Sub
 
-    Public Sub ChangeColor()
-        BackColor = If(BackColor = Color.White, Color.Black, Color.White)
-        ForeColor = If(BackColor = Color.White, Color.Black, Color.White)
+    Private Sub DataGridViewUserControl_Load(sender As Object, e As EventArgs) Handles MyBase.Load
+        Try
+            'Set back color and fore color.
+            BackColor = Color.White
+            ForeColor = Color.Black
+
+            'Set label.
+            GridLabel.Text = ConfigsLoader.GridLabelNames(_gridNumber)
+
+            'Load all work items.
+            LoadWorkItems()
+        Catch ex As Exception
+            Throw New InternalException($"Could not load {Me.Name}.{vbNewLine}{ex.Message}")
+        End Try
     End Sub
 
-    Private Sub UserControl1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
-        BackColor = Color.White
-        ForeColor = Color.Black
+    ''' <summary>
+    ''' Load and show work items.
+    ''' </summary>
+    Private Sub LoadWorkItems()
+        Try
+            Dim workItems As List(Of IWorkItem) = _parentForm.GetWorkItems(_gridNumber)
+            ShowWorkItems(workItems)
+        Catch ex As Exception
+
+        End Try
     End Sub
+
+    ''' <summary>
+    ''' Visualize work items in grid.
+    ''' </summary>
+    ''' <param name="workItems"></param>
+    Private Sub ShowWorkItems(workItems As List(Of IWorkItem))
+        'Color the work items.
+        ColorWorkItems(workItems)
+    End Sub
+
+    ''' <summary>
+    ''' Set all the right colors for the work items.
+    ''' </summary>
+    ''' <param name="workItems"></param>
+    Private Sub ColorWorkItems(workItems As List(Of IWorkItem))
+
+    End Sub
 End Class