"The ID property of a control can only be set using the ID attribute in the tag and a simple value" error

Asked Jun 25 '16 at 08:39

Active Jun 25 '16 at 08:39

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< asp:Button runat="server" ID='<%# string.Format("btn/{0}", Eval("category")) %>'  OnClick="btnMark_Click" CommandName='<%#Eval("pin_id") %>' />

I get "The ID property of a control can only be set using the ID attribute in the tag and a simple value" error when I use this. I searched online, some said remove runat="server" will solve the error, but it will cause my onclick event not triggering when clicked.

asked Jun 25 '16 at 08:39

rounen

I have added your line of code, and it works for me – meJustAndrew Jun 25 '16 at 09:03
Why you need Button Id set on runtime.? Could you explain? – Asad Ali Jun 27 '16 at 03:38
@AsadAli Perhaps his buttons are within a template (ListView, Repeater, etc), and wants to access the buttons in C# using unique IDs. – Shroombaker May 16 '17 at 03:04

"The ID property of a control can only be set using the ID attribute in the tag and a simple value" error

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