I saw some post about radupload validation in grid, but is server-side. I'm trying to use this tip:
| function validateRadUpload1(source, arguments)
| arguments.IsValid = $find("<%= MyUploadControl.ClientID %>").validateExtensions();
I got an error:
The name 'MyUploadControl' does not exist in the current context
The RadUpload is inside a grid;
The page is inside a masterpage;
I have tried with the complete name of control, like: ContentPlaceHolder1_RadGrid1_ctl00_ctl05_MyUploadControl
but I got the same error.
What's the best way to use this kind of validation?