I am using IE8 on Windows 7; the application is running on Windows Server 2008/IIS7. The progressbar control is NOT inside an updatepanel, just in a modalpopupextender.
Could you help me troubleshoot this error? Thank you!
I have also tried incorporating the code from demo.aspx as-is, simply copying the code from demo.aspx to my page:
and it still gives the error on the same line. Any suggestions?
Note that the string used to index into the Bars array needs to be the ClientID of the ProgressBar control. This can be different than the id attribute of the control if, for example, the ProgressBar is in user control. To determine the ClientID you can either use a debugger or check the id attribute in the rendered HTML instead of the aspx file.