WebForm_DoPostBackWithOptions Is Not Defined

I downloaded and setup MS's Stock Trader app. I'm running Vista Ultimate, IIS7, VS 2008 / .NET 3.5. The entire app is about 120 MB so is quite involved but it all seemed to setup f

Solution 1:

One solution is to set the LinkButton CausesValidation=false

Solution 2:

I know that this is a bit late, but hopefully this can help future searchers.

Under Handler Mappings, right click and click Edit. Then click Request Restrictions, there is a mapping tab - selecting "Invoke handler only if request is mapped to" and "File" is equivalent to "check if file exists".