Question

in an usercontrol with update panel when using the scriptManger to register a script this code is works:

ScriptManager.RegisterStartupScript
        (this.updatePanel, this.updatePanel.GetType(), "printing", Keys.URL, true);

but this one does not work

ScriptManager.RegisterStartupScript(this, this.GetType(), "printing", Keys.URL, true);

i cant figure why?

Answer 1

I would think it’s because in the first example you’re registering a script for the UpdatePanel (which would be updated on an asynchronous postback – enabling the script to be written), whereas in the second example you’re doing it at the page level, which wouldn’t be updated as it falls outside the UpdatePanel.