i'm trying to use the ajax control toolkit but each time i'm trying to run my project i'm getting a:
"Microsoft JScript runtime error: Sys.ArgumentUndefinedException: Value cannot be undefined.
Parameter name: type " Error.
if i hit the continue button the page loads but without the functionality of the control.
the control that i'm trying to use is the AutoCompleteExtender.
i followed all the video tutorials and read many post about this toolkit but found nothing about this error.
i tried this on both web developr 2008, 2010 and visual studio 2008.
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