Imagebutton Picture is not showing

Question

I'm trying to replace within a div container an Imagebutton but the new picture is not shown.

This is the code from the aspx site before changing the picture:

<div id="pdfug" runat="server">
<asp:ImageButton ID="PDF_UG" runat="server" ImageUrl="~/images/PDF_gray64.png" style="text-align: center"/>
</div>

Everything is fine and the picture is shown. Now I change the content of the div container with this code:

pdfug.InnerHtml = @"<asp:ImageButton ID=""PDF_UG"" runat=""server"" ImageUrl=""~/images/PDF_red64.png""/>";

When I run the site the new Picture is not shown. In the source of the website I can see that the code was successfully replaced:

<div id="ctl00_MainContent_pdfug"><asp:ImageButton ID="PDF_UG" runat="server" ImageUrl="~/images/PDF_red64.png"/></div>

The picture is in the correct path, I can open it with

http://localhost:65277/images/PDF_red64.png

So where is the problem?

Answer 1

Have you tried just appending the control to the div container in the code behind?

ImageButton imgBt = new ImageButton();
imgBt.ID = "PDF_UG";
imgBt.ImageUrl = "~/images/PDF_red64.png";
pdfug.Controls.Add(imgBt);