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ASP.net VB.net CheckBox template field is blank

Posted on 2016-09-21
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Last Modified: 2016-09-21
Hi

I add a Checkbox template field to a GridView using the following code. The cells are blank and don't show any checkboxes.
What have I done wrong?

              Dim oCheckBoxField As New CheckBoxField
                        oCheckBoxField.HeaderText = "Check"
                        oGridView.Columns.Add(oCheckBoxField)

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Question by:Murray Brown
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4 Comments
 
LVL 11

Expert Comment

by:Craig Yellick
ID: 41809187
Did you set AutoGeneratedColumns=false?  Where is the code you posted located, which event?
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Author Comment

by:Murray Brown
ID: 41809200
The code is in the Page_Load event. I did not set AutoGeneratedColumns=false
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LVL 11

Accepted Solution

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Craig Yellick earned 2000 total points
ID: 41809263
Is this checkbox intended to be used for allowing the user to select multiple items in the grid? If so this is quite complicated and there are several detailed walk-throughs available. Here's one that includes selected rows highlighting:

http://www.codeproject.com/Articles/14437/Extending-GridView-by-allowing-Multiple-Selections

Here's a very simple implementation, in two parts:

http://www.niteshluharuka.com/how-to-add-a-checkbox-column-to-gridview-in-aspnet
http://www.niteshluharuka.com/how-to-get-multiple-selected-rows-from-gridview-in-aspnet
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Author Closing Comment

by:Murray Brown
ID: 41809270
Thanks very much
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