Question

Using

string iframeSrcPage = iframeMain.Attributes["src"];

to get iframe source, always returns the value which set in aspx page itself,
even that value is changed using javascript code,

iframeObject.src = pageURL;

So, how to get an IFrame src attribute value from ASP.Net code behind?

Answer 1

Try this: add a hidden input field (with runat="server" attribute) and change its value to your IFrame’s src in the JavaScript. That way, you’ll be able to read the field’s value server-side.