Fixed previously errors and correctly dispose excel app after use

Wardrobe/GUI.Designer.vb

@@ -246,7 +246,7 @@ Partial Class GUI
         'Button_Square
         '
         Me.Button_Square.Location = New System.Drawing.Point(971, 68)
-        Me.Button_Square.Margin = New System.Windows.Forms.Padding(4, 4, 4, 4)
+        Me.Button_Square.Margin = New System.Windows.Forms.Padding(4)
         Me.Button_Square.Name = "Button_Square"
         Me.Button_Square.Size = New System.Drawing.Size(123, 34)
         Me.Button_Square.TabIndex = 25
@@ -290,6 +290,7 @@ Partial Class GUI
         'CheckBox_WholeMeshWidths
         '
         Me.CheckBox_WholeMeshWidths.AutoSize = True
+        Me.CheckBox_WholeMeshWidths.Enabled = False
         Me.CheckBox_WholeMeshWidths.Location = New System.Drawing.Point(125, 453)
         Me.CheckBox_WholeMeshWidths.Margin = New System.Windows.Forms.Padding(3, 2, 3, 2)
         Me.CheckBox_WholeMeshWidths.Name = "CheckBox_WholeMeshWidths"
@@ -328,7 +329,7 @@ Partial Class GUI
         Me.Controls.Add(Me.DrawingPanel)
         Me.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle
         Me.Icon = CType(resources.GetObject("$this.Icon"), System.Drawing.Icon)
-        Me.Margin = New System.Windows.Forms.Padding(4, 4, 4, 4)
+        Me.Margin = New System.Windows.Forms.Padding(4)
         Me.MaximizeBox = False
         Me.Name = "GUI"
         Me.Text = "Floor Gratings"

Wardrobe/GUI.vb

@@ -2,8 +2,8 @@
 Imports Excel = Microsoft.Office.Interop.Excel
 
 Public Class GUI
-    'Public Shared filepath As String = "C:\Users\Anton\Documents\Exjobb"
+    Public Shared filepath As String = "C:\Users\Anton\Documents\Exjobb"
-    Public Shared filepath As String = "C:\Users\xperd\Documents"
+    'Public Shared filepath As String = "C:\Users\xperd\Documents"
 
     Dim excelApp As Excel.Application = New Excel.Application
     Dim excelWB As Excel.Workbook
@@ -21,6 +21,8 @@ Public Class GUI
         adminClass.loadSettings(GUI_Settings.filesFolder, GUI_Settings.HLCtFolder, "SolidWorks")
 
         Get_Database()
+
+        CheckBox_WholeMeshWidths.Checked = True
     End Sub
 
     Private Sub Get_Database()
@@ -54,8 +56,16 @@ Public Class GUI
             End While
 
             dataBase.Add(activeSheet.Name, tempDT)
+
+            System.Runtime.InteropServices.Marshal.ReleaseComObject(activeSheet)
         Next
         ' HANTERA OLIKA LÄNGDER PÅ COLUMNER
+
+
+        excelWB.Close()
+        excelApp.Quit()
+        System.Runtime.InteropServices.Marshal.ReleaseComObject(excelWB)
+        System.Runtime.InteropServices.Marshal.ReleaseComObject(excelApp)
     End Sub
 
     Public Sub Create_TextBox(TextBoxName As String, TextBoxText As String, TextBoxLeft As Integer, TextBoxTop As Integer, TextBoxWidth As Integer)

Wardrobe/GUI_Gratings_Data.vb

@@ -125,6 +125,11 @@
     End Sub
 
     Private Shared Sub Update_AvalaibleMeshes()
+        GUI.ComboBox_Height.Items.Clear()
+        GUI.ComboBox_Height.Enabled = False
+        GUI.ComboBox_Thickness.Items.Clear()
+        GUI.ComboBox_Thickness.Enabled = False
+
         GUI.ComboBox_MeshSize.Items.Clear()
 
         Dim meshesDT As DataTable = GUI.dataBase("Meshes")
@@ -162,6 +167,9 @@
     End Sub
 
     Public Shared Sub MeshChanged(sender As Object, e As EventArgs)
+        GUI.ComboBox_Thickness.Items.Clear()
+        GUI.ComboBox_Thickness.Enabled = False
+
         GUI.ComboBox_Height.Enabled = True
         GUI.ComboBox_Height.Items.Clear()
         gratingMesh = GUI.ComboBox_MeshSize.Text
@@ -207,7 +215,7 @@
         Next
 
         tempList.Sort()
-        For i = 0 To tempList.Count - 2
+        For i = 0 To tempList.Count - 1
             GUI.ComboBox_Height.Items.Add(tempList(i))
         Next
     End Sub
@@ -256,7 +264,7 @@
         Next
 
         tempList.Sort()
-        For i = 0 To tempList.Count - 2
+        For i = 0 To tempList.Count - 1
             GUI.ComboBox_Thickness.Items.Add(tempList(i))
         Next
 
@@ -267,6 +275,8 @@
         GUI.ComboBox_Width.Items.Clear()
         GUI.ComboBox_Length.Enabled = True
         GUI.ComboBox_Length.Items.Clear()
+        GUI.CheckBox_WholeMeshWidths.Enabled = True
+
         loadBarThickness = CInt(GUI.ComboBox_Thickness.Text)
 
         ' Add Widths