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ASP.NET - How do I reference a dynamic control from code behind

I have a button (1 of 2) inside a ListViewItem. The definition is:
<ItemTemplate>
<tr class="ItemStyle" style=" background-color: White ">
<td  ondatabinding="ManageButtonText" ID="UserCell" runat="server" align=center Width=180 style="border-bottom: solid 1px #BDF">
<%#Eval("username")%></td>
<td style="padding-left: 6px; padding-right: 3px; border-bottom: solid 1px #BDF">
<asp:Button ID="DetailButton"  OnClick="ButtonClick" CausesValidation=false
runat="server" Width=140 Height="22px" Font-Size=8  Text="View/Edit detailed ratings" />&nbsp;
<asp:Button ID="SummaryButton"  OnClick="ButtonClick" CausesValidation=false
runat="server" Width=140 Height="22px" Font-Size=8 Text="View/Edit summary ratings" />
</td>
</tr>
</ItemTemplate>

The extract in the attached code snippet, from my IE browser's "View Source", shows the ID of my button to be "EmpListView_ctrl0_DetailButton".
But when I try to access the button from code-behind using Page.FindControl("EmpListView_ctrl0_DetailButton"), it returns Nothing.
What am I doing wrong, please?

<table id="EmpListView_Table1" style="margin: 15px; ">
<tr>
<td>
<table id="EmpListView_itemPlaceholderContainer" border="1" cellpadding="4" class="MediumArial " style=" border-collapse: collapse;border-color: #555;
border-style:solid ; border-width:1px; ">
<tr id="EmpListView_Tr2" height="20px" style="font-weight:bold;  background-color: #ddd;">
<th id="EmpListView_Th1" style="border-bottom: solid 1px #333; padding: 5px">Employee Name</th>
<th id="EmpListView_Th2" colspan="2" style="border-bottom: solid 1px #333;">Action</th>
</tr>
<tr class="ItemStyle" style=" background-color: White ">
<td id="EmpListView_ctrl0_UserCell" align="center" width="180" style="border-bottom: solid 1px #BDF">Conradie Eddie</td>
<td style="padding-left: 6px; padding-right: 3px; border-bottom: solid 1px #BDF">
<input type="submit" name="EmpListView$ctrl0$DetailButton" value="View/Edit detailed ratings" id="EmpListView_ctrl0_DetailButton" style="font-size:8pt;height:22px;width:140px;" />&nbsp; 
<input type="submit" name="EmpListView$ctrl0$SummaryButton" value="View/Edit summary ratings" id="EmpListView_ctrl0_SummaryButton" style="font-size:8pt;height:22px;width:140px;" />
</td> 
</tr>
</table>

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eddiecon
Asked:
eddiecon
  • 3
1 Solution
 
naspinskiCommented:
instead of Page.FindControl("EmpListView_ctrl0_DetailButton") try:
EmpListView.FindControl("DetailButton");

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naspinskiCommented:
more completely
Button DetailButton = (Button)EmpListView.FindControl("DetailButton");

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eddieconAuthor Commented:
Thanks for responding
The button(s) I want to access are inside each Listview item. So I have
EmpListView_ctrl0_Detail
EmpListView_ctrl1_Detail
etc
I have the "row" number 0/1/2 etc, now I just need the right syntax to refernce the button
Could you help, please?
0
 
naspinskiCommented:
if you have the row number, thats easy.  Remember that asp.net doesn't reference anything by the whole html id that you are using up there, just control IDs.  Call this in your EmpListView_DataBound Event.
Button DetailButton = (Button)EmpListView.Items[ROW_NUMBER].FindControl("DetailButton");

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