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Finding a Placeholder Control inside a Repeater on Postback

Posted on 2011-10-28
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Last Modified: 2012-05-12
I have a custom control placed inside a repeater. I want to get access to the values stored in it and find it on postback. But when I search for it within the placeholder on the button click event, it returns Nothing.

I want to get the value of the combobox as selected by the user prior to the submit.

See my code attached. Thanks.
Protected Sub btnSave_Click(sender As Object, e As System.EventArgs) Handles btnSave.Click
        If Not Page.IsValid Then Exit Sub
        Dim ph As New PlaceHolder
        ph = CType(rptItem.FindControl("RepeaterName"), PlaceHolder)
        For Each phc As Control In ph.Controls
            ' try to obtain by the ID
            If phc.ID = "MYID" Then
                Dim cmb As ICombo = CType(phc, ICombo)
                Dim valueId As Integer = CInt(cmb.GetAnswer)
            End If
            ' try to obtain by checking the interface type
            If TypeOf phc Is ICombo Then
                Dim cmb As ICombo = CType(phc, ICombo)
                Dim valueId As Integer = CInt(cmb.GetAnswer)
            End If
        Next
        end if
    End Sub

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Question by:Starr Duskk
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Assisted Solution

by:ddayx10
ddayx10 earned 2000 total points
ID: 37048360
You need to post a simplified version of your repeater, also show the placement of your BtnSave(s).

What is the indicator we are looking for that the particular combobox was selected by the user and is therefore the one we want?

If you have multiple BtnSave's I can see how you are expecting to determine this, but otherwise it's going to be a main focus of how to get this working.

Anyway need some code and then we can see what other questions/solutions arise.
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Accepted Solution

by:
Starr Duskk earned 0 total points
ID: 37071649
I decided to skip the repeater and just use a placeholder and loop through a collection from a datareader and add to a placeholder.

thanks!
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LVL 2

Author Closing Comment

by:Starr Duskk
ID: 37092867
don't think it's possible. looked everywhere. came up with another solution.
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