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Combo boxes in Tab control becoming selected when switching tabs

Posted on 2004-10-06
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Last Modified: 2011-09-20
I know the title of the question doesn't make much sense.  I'll try to explain further.

I have an app with multiple forms containing tab controls.  The tab controls have combo boxes on them.  Any time I run the app and move between tabs on any of the forms, all of the combo boxes on the tabs become selected.  

This one is driving me mad.  Does anyone know how to make them stop?  It is only the combo boxes.  I also have text boxes on the tabs, but they are unaffected by this apparent phenomenon.

Any help is greatly appreciated.

Regards,
Sekans
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Question by:Sekans
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2 Comments
 
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Accepted Solution

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bramsquad earned 375 total points
ID: 12241606
i had this same problem when i would refresh a datagrid

im not sure what causes it, or why it happens, but i just changed the selection index everytime

use this code in your program
   
    Private Sub TabControl1_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles TabControl1.SelectedIndexChanged
        Me.ComboBox1.SelectionLength = 0
    End Sub

~b
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Author Comment

by:Sekans
ID: 12242622
bramsquad,

I don't believe this is a good option for me.  I have numerous forms with tab controls.  Each tab control has numerous combo boxes.  I would have to customize the code snippet for each combo box.

I found another solution.  I pasted the following code into each tab control's click event.

Dim ctrl As Control
For Each ctrl In Me.Controls
     If Left(ctrl.Name, 3) = "cbo" Then
        ctrl.SelLength = 0
    End If
Next ctrl

The "cbo" is simply the naming convention prefix I use for combo boxes.  I was hesitant to do this as I thought it could slow the screen repaint, but it hasn't affected it at all.

However, you provided a working solution so the points are yours.

Thanks for the timely response.

Sekans
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