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ASP.net VB.net Get the Index of an Item checked in a dynamically added CheckBoxList

Posted on 2016-10-21
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Last Modified: 2016-10-21
Hi
I am trying to get the Index of an Item checked in a dynamically added CheckBoxList. I use the following code and
myCheckBoxListName  and myNewValue work just fine but oIndex returns -1 every time

  Private Sub HandleCheckBoxListOnSelectedIndexChanged(ByVal sender As Object, ByVal e As EventArgs)

            Dim myCheckBoxListName As String
            Dim myNewValue As String
            Dim oIndex As Integer

            myNewValue = DirectCast(sender, CheckBoxList).SelectedValue
            oIndex = DirectCast(sender, CheckBoxList).SelectedIndex
            myCheckBoxListName = DirectCast(sender, CheckBoxList).ID
End Sub
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Question by:Murray Brown
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9 Comments
 
LVL 45

Expert Comment

by:AndyAinscow
ID: 41853363
Is it a multi select check listbox ?  (They don't use the SelectedIndex - that is just for single selection)
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LVL 45

Expert Comment

by:AndyAinscow
ID: 41853368
0
 

Author Comment

by:Murray Brown
ID: 41853649
Hi. That doesn't work. It is a CheckBoxList not a ListBox
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LVL 45

Expert Comment

by:AndyAinscow
ID: 41853660
Answer the question please. Is it a multi select check listbox ?
0
 

Author Comment

by:Murray Brown
ID: 41853686
It is a CheckBoxList as I just said. This is automatically multi select
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LVL 45

Accepted Solution

by:
AndyAinscow earned 2000 total points
ID: 41853697
OK, that is why your SelectedIndex fails.

You will have to loop through the items and check each individually if it is selected to build up your collection of indexs.
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LVL 45

Expert Comment

by:AndyAinscow
ID: 41853703
ps.  re your attention request:
Hi

The tone of the person answering the question is not that polite. I think another expert should help or the question be deleted.

Thanks


What is impolite for asking you to answer a question you know the answer to, everyone else doesn't know the answer to and is critical to be able to explain why your code doesn't work?
0
 

Author Comment

by:Murray Brown
ID: 41853710
I asked for the request to be ignored. I probably just interpreted your question differently to the way it was meant
0
 

Author Closing Comment

by:Murray Brown
ID: 41853713
Thanks for the help
0

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