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ASP.NET is an application framework developed by Microsoft. It is built on top of the .NET Common Language Runtime (CLR). SharePoint is built from the ASP.NET framework.

5 votes
3 answers
19k views

Trying to update a SPItem from an asp.net page and get the error "The security validation fo...

I am trying to update an SPItem from inside a asp.net page but I am getting the error The security validation for this page is invalid. …
Meyer Denney's user avatar
  • 2,864
1 vote
1 answer
182 views

Creating an asp.net page that calls on a SharePoint 2010 Service Application

Normally, when developing in SharePoint, if I get this error, I set the platform target CPU to x64 and everything works fine, but when I do that in my asp.net webpage, I get a "Could not load file or assembly … Does anyone know how to create a 64 bit asp.net webpage that can call on a SharePoint 2010 service application? …
Meyer Denney's user avatar
  • 2,864