Index: TAOR rework/TAOR rework/formulieren/Specials/FormFronten.Designer.vb
===================================================================
diff -u -r1897 -r1898
--- TAOR rework/TAOR rework/formulieren/Specials/FormFronten.Designer.vb	(.../FormFronten.Designer.vb)	(revision 1897)
+++ TAOR rework/TAOR rework/formulieren/Specials/FormFronten.Designer.vb	(.../FormFronten.Designer.vb)	(revision 1898)
@@ -24,7 +24,6 @@
     Private Sub InitializeComponent()
         Dim resources As System.ComponentModel.ComponentResourceManager = New System.ComponentModel.ComponentResourceManager(GetType(FormFronten))
         Me.Panel1 = New System.Windows.Forms.Panel()
-        Me.btnVerwerk = New System.Windows.Forms.Button()
         Me.btnTerug = New System.Windows.Forms.Button()
         Me.lblVerwerking = New System.Windows.Forms.Label()
         Me.Label6 = New System.Windows.Forms.Label()
@@ -41,15 +40,15 @@
         Me.ComboBoxMateriaal = New System.Windows.Forms.ComboBox()
         Me.TextBoxLetterBarcode = New System.Windows.Forms.TextBox()
         Me.Label7 = New System.Windows.Forms.Label()
-        Me.Button1 = New System.Windows.Forms.Button()
+        Me.btnProduceer = New System.Windows.Forms.Button()
         Me.Panel1.SuspendLayout
         CType(Me.NumericUpDownAantal,System.ComponentModel.ISupportInitialize).BeginInit
         Me.SuspendLayout
         '
         'Panel1
         '
         Me.Panel1.Anchor = System.Windows.Forms.AnchorStyles.Top
-        Me.Panel1.Controls.Add(Me.Button1)
+        Me.Panel1.Controls.Add(Me.btnProduceer)
         Me.Panel1.Controls.Add(Me.TextBoxLetterBarcode)
         Me.Panel1.Controls.Add(Me.Label7)
         Me.Panel1.Controls.Add(Me.Label5)
@@ -65,24 +64,12 @@
         Me.Panel1.Controls.Add(Me.Label1)
         Me.Panel1.Controls.Add(Me.ComboBoxBreedte)
         Me.Panel1.Controls.Add(Me.lblVerwerking)
-        Me.Panel1.Controls.Add(Me.btnVerwerk)
         Me.Panel1.Controls.Add(Me.btnTerug)
         Me.Panel1.Location = New System.Drawing.Point(360, 15)
         Me.Panel1.Name = "Panel1"
         Me.Panel1.Size = New System.Drawing.Size(1200, 665)
         Me.Panel1.TabIndex = 61
         '
-        'btnVerwerk
-        '
-        Me.btnVerwerk.Font = New System.Drawing.Font("Microsoft Sans Serif", 25!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0,Byte))
-        Me.btnVerwerk.Location = New System.Drawing.Point(1282, 613)
-        Me.btnVerwerk.Margin = New System.Windows.Forms.Padding(3, 3, 125, 3)
-        Me.btnVerwerk.Name = "btnVerwerk"
-        Me.btnVerwerk.Size = New System.Drawing.Size(162, 128)
-        Me.btnVerwerk.TabIndex = 76
-        Me.btnVerwerk.Text = "Verwerk"
-        Me.btnVerwerk.UseVisualStyleBackColor = true
-        '
         'btnTerug
         '
         Me.btnTerug.Anchor = CType((System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Right),System.Windows.Forms.AnchorStyles)
@@ -262,16 +249,16 @@
         Me.Label7.TabIndex = 111
         Me.Label7.Text = "Letter barcode:"
         '
-        'Button1
+        'btnProduceer
         '
-        Me.Button1.Enabled = false
-        Me.Button1.Font = New System.Drawing.Font("Microsoft Sans Serif", 25!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0,Byte))
-        Me.Button1.Location = New System.Drawing.Point(60, 500)
-        Me.Button1.Name = "Button1"
-        Me.Button1.Size = New System.Drawing.Size(1076, 68)
-        Me.Button1.TabIndex = 113
-        Me.Button1.Text = "Produceer (aantal)"
-        Me.Button1.UseVisualStyleBackColor = true
+        Me.btnProduceer.Enabled = false
+        Me.btnProduceer.Font = New System.Drawing.Font("Microsoft Sans Serif", 25!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0,Byte))
+        Me.btnProduceer.Location = New System.Drawing.Point(60, 500)
+        Me.btnProduceer.Name = "btnProduceer"
+        Me.btnProduceer.Size = New System.Drawing.Size(1076, 68)
+        Me.btnProduceer.TabIndex = 113
+        Me.btnProduceer.Text = "Produceer (aantal)"
+        Me.btnProduceer.UseVisualStyleBackColor = true
         '
         'FormFronten
         '
@@ -291,7 +278,6 @@
 End Sub
 
     Friend WithEvents Panel1 As Panel
-    Friend WithEvents btnVerwerk As Button
     Friend WithEvents btnTerug As Button
     Friend WithEvents lblVerwerking As Label
     Friend WithEvents Label6 As Label
@@ -308,5 +294,5 @@
     Friend WithEvents ComboBoxMateriaal As ComboBox
     Friend WithEvents TextBoxLetterBarcode As TextBox
     Friend WithEvents Label7 As Label
-    Friend WithEvents Button1 As Button
+    Friend WithEvents btnProduceer As Button
 End Class
Index: TAOR rework/TAOR rework/formulieren/Specials/FormVoorraad.vb
===================================================================
diff -u -r1881 -r1898
--- TAOR rework/TAOR rework/formulieren/Specials/FormVoorraad.vb	(.../FormVoorraad.vb)	(revision 1881)
+++ TAOR rework/TAOR rework/formulieren/Specials/FormVoorraad.vb	(.../FormVoorraad.vb)	(revision 1898)
@@ -48,7 +48,7 @@
             btnWisAlle.Enabled = False
         Catch ex As Exception
             MessageBox.Show(ex.Message, "Er is een fout opgetreden...", MessageBoxButtons.OK, MessageBoxIcon.Error)
-            Application.Exit()
+            FormController.getInstance().laadVorige(Me)
         End Try
     End Sub
 
Index: TAOR rework/TAOR rework/formulieren/Specials/FormFronten.vb
===================================================================
diff -u -r1897 -r1898
--- TAOR rework/TAOR rework/formulieren/Specials/FormFronten.vb	(.../FormFronten.vb)	(revision 1897)
+++ TAOR rework/TAOR rework/formulieren/Specials/FormFronten.vb	(.../FormFronten.vb)	(revision 1898)
@@ -4,12 +4,39 @@
         Me.ControlBox = False
         'tonen of er wel verwerkt wordt
         lblVerwerking.Visible = Not Configs.geefVerwerkStatus
+
+        laadData()
     End Sub
 
     Private Sub BtnTerug_Click(sender As Object, e As EventArgs) Handles btnTerug.Click
         FormController.getInstance.laadFormSpecialMenu(Me)
     End Sub
 
+    ''' <summary>
+    ''' Comboboxen etc. invullen met juiste waarden.
+    ''' </summary>
+    Private Sub laadData()
+        Try
+            TextBoxLabelTekst.Text = "Stock"
+            ComboBoxBreedte.DataSource = new List(Of String)from{"Breedte 1", "Breedte 2"}
 
+            ComboBoxHoogte.DataSource = Domeincontroller.getInstance.geefVoorraadHoogtes
+            ComboBoxKantenband.DataSource = Configs.kantenbandKleurenLetters
+            ComboBoxMateriaal.DataSource = Domeincontroller.getInstance.geefVoorraadKleuren
+        Catch ex As Exception
+            MessageBox.Show(ex.Message, "Er is een fout opgetreden...", MessageBoxButtons.OK, MessageBoxIcon.Error)
+            FormController.getInstance().laadVorige(Me)
+        End Try
+    End Sub
 
+    Private Sub TextBoxLetterBarcode_TextChanged(sender As Object, e As EventArgs) Handles TextBoxLetterBarcode.TextChanged
+        updateVerwerkButtonStatus()
+    End Sub
+
+    ''' <summary>
+    ''' De verwerk knop mag enkel enabled worden als geldige waarden zijn ingevuld
+    ''' </summary>
+    Private Sub updateVerwerkButtonStatus()
+        btnProduceer.Enabled = not String.IsNullOrEmpty(TextBoxLetterBarcode.Text)
+    End Sub
 End Class
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