Visual Studio 2008 SP1 Doesn't allow adding site data sources
I have a project with two reports (master.rdlc and detail.rdlc) that uses data to populate data. So far, so good. They work fine or work fine. For some reason, they have lost their dataset references and the datasets are not showing up in the Website Data Sources window, so I cannot work with them.
In addition, all buttons except Refresh are disabled in the Website Data Sources window.
What could be the problem?
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Same problem - except that I haven't had time to run the report yet, got stuck in a blank document, and couldn't add data sources.
Getting a very strange message when I go to Report> Resources that it cannot load the ajaxtoolkit assembly ...?!
*** Update ***** Set target framework 3.5 to 3.0 - seems to work now
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Try
https://msdn.microsoft.com/en-us/library/yft2c9ad.aspx
On the menu bar, select View, Other Windows, Data Sources (or select Shift + Alt + D).
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