[AccessD] Tab Control - vb.net

Here is another good site, one that has a way to create custom rectangle
boxes on tab controls:
http://www.vb-helper.com/howto_net_ownerdraw_tab.html 


Karen S. Long
Programmer Analyst
EG&G Technical Services, Inc.
Pittsburgh, PA
Phone: 412-386-6649
Email: cyx5 at cdc.gov


-----Original Message-----
From: accessd-bounces at databaseadvisors.com
[mailto:accessd-bounces at databaseadvisors.com] On Behalf Of Kath Pelletti
Sent: Tuesday, April 25, 2006 8:37 PM
To: Access Developers discussion and problem solving
Subject: Re: [AccessD] Tab Control - vb.net

Karen - I have created a new Windows form, added a tab control, pasted
the code inside the form's class.

I am getting sytax errors on the me. lines at the top. Should these be
sitting inside an event associated with the tab control?

And when you say to set a reference to the tab control. do you mean via
[Project], [Add Reference]?

Kath
  ----- Original Message -----
  From: Long, Karen S. (CDC/NIOSH/NPPTL) (CTR)
  To: Access Developers discussion and problem solving
  Sent: Tuesday, April 25, 2006 4:27 AM
  Subject: Re: [AccessD] Tab Control - vb.net


  Me.SetStyle(ControlStyles.UserPaint, True)
  Me.SetStyle(ControlStyles.AllPaintingInWmPaint, True)
  Me.SetStyle(ControlStyles.DoubleBuffer, True)
  Me.SetStyle(ControlStyles.ResizeRedraw, True)
  Me.SetStyle(ControlStyles.SupportsTransparentBackColor, True)
  Then, you need to override the OnPaint event and draw your own
control.
  The basic steps involved are:

  Protected Overrides Function ProcessMnemonic(ByVal charCode As Char)
As
  Boolean
      For Each p As TabPage In Me.TabPages
          If Control.IsMnemonic(charCode, p.Text) Then
              Me.SelectedTab = p
              Me.Focus()
              Return True
          End If
      Next p
      Return False
  End Function 'ProcessMnemonic
            
  Protected Overrides Sub OnPaint(ByVal e As _
            System.Windows.Forms.PaintEventArgs)
      MyBase.OnPaint(e)
      DrawControl(e.Graphics)
  End Sub

  Friend Sub DrawControl(ByVal g As Graphics)
      If Not Visible Then
          Return
      End If
      Dim render As New
  VisualStyleRenderer(VisualStyleElement.Tab.Pane.Normal)
      Dim TabControlArea As Rectangle = Me.ClientRectangle
      Dim TabArea As Rectangle = Me.DisplayRectangle
      TabArea.Y = TabArea.Y + 1
      TabArea.Width = TabArea.Width + 1
      Dim nDelta As Integer = SystemInformation.Border3DSize.Width
      TabArea.Inflate(nDelta, nDelta)
      render.DrawBackground(g, TabArea)
        
      Dim i As Integer = 0
      While i < Me.TabCount
          DrawTab(g, Me.TabPages(i), i)
          i += 1
      End While
        
  End Sub
            
  Friend Sub DrawTab(ByVal g As Graphics, ByVal tabPage _
             As TabPage, ByVal nIndex As Integer)
      Dim recBounds As Rectangle = Me.GetTabRect(nIndex)
        
      Dim tabTextArea As RectangleF = _
          CType(Me.GetTabRect(nIndex), RectangleF)
      Dim bSelected As Boolean = (Me.SelectedIndex = nIndex)
      Dim render As New
  VisualStyleRenderer(VisualStyleElement.Tab.Pane.Normal)
      render = New
  VisualStyleRenderer(VisualStyleElement.Tab.TabItem.Pressed)
      If bSelected Then
          recBounds.Height = recBounds.Height + 10
          render = New
  VisualStyleRenderer(VisualStyleElement.Tab.TabItem.Pressed)
          render.DrawBackground(g, recBounds)
          render.DrawEdge(g, recBounds, Edges.Diagonal, _
                 EdgeStyle.Sunken, EdgeEffects.Flat)
      Else
          recBounds.Y = recBounds.Y + 1
          render = New
  VisualStyleRenderer(VisualStyleElement.Tab.TabItem.Normal)
          render.DrawBackground(g, recBounds)
          render.DrawEdge(g, recBounds, Edges.Diagonal, _
                 EdgeStyle.Sunken, EdgeEffects.Flat)
      End If
      If (tabPage.ImageIndex >= 0) AndAlso _
                  (Not (ImageList Is Nothing)) _
                  AndAlso (Not (ImageList.Images(tabPage.ImageIndex) _
                  Is Nothing)) Then
          Dim nLeftMargin As Integer = 8
          Dim nRightMargin As Integer = 2
          Dim img As Image = ImageList.Images(tabPage.ImageIndex)
          Dim rimage As Rectangle = New Rectangle(recBounds.X + _
                     nLeftMargin, recBounds.Y + 1, img.Width,
img.Height)
          Dim nAdj As Single = CType((nLeftMargin + _
                      img.Width + nRightMargin), Single)
          rimage.Y += (recBounds.Height - img.Height) / 2
          tabTextArea.X += nAdj
          tabTextArea.Width -= nAdj
          g.DrawImage(img, rimage)
      End If

      Dim stringFormat As StringFormat = New StringFormat
      stringFormat.Alignment = StringAlignment.Center
      stringFormat.LineAlignment = StringAlignment.Center
      If FlagControl Then
          stringFormat.HotkeyPrefix = Drawing.Text.HotkeyPrefix.Show
      Else
          stringFormat.HotkeyPrefix = Drawing.Text.HotkeyPrefix.Hide
      End If
      Dim br As Brush
      br = New SolidBrush(tabPage.ForeColor)
      g.DrawString(tabPage.Text, Font, br, tabTextArea, stringFormat)
  End Sub

  'add a reference to the TabControl into the new project and drag the
  TabControl to your form.


  Karen S. Long
  Programmer Analyst
  EG&G Technical Services, Inc.
  Pittsburgh, PA
  Phone: 412-386-6649
  Email: cyx5 at cdc.gov

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