Hello Jason,
As you see, there are many differences between Asp.net project model and
Winform project model. Data Sources Window is one of them. I'm sorry to say
it is only available in Winform Project.
Actually, in ASP.net world, there is a similar window named Website Data
Source. However, it is only available when designing a report.Thus, I'm
afraid this isn't helpful in current scenario...
http://msdn2.microsoft.com/en-us/library/ms252123(VS.80).aspx
[Walkthrough: Using a Database Data Source with the ReportViewer Web Server
Control in Local Processing Mode]
I'm sorry for any inconvenience this may have caused.
Sincerely,
Wen Yuan
Microsoft Online Community Support
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