Why is IWorkItemControl.InvalidateDatasource called multiple times per WorkItem opening/loading?

Question

Good afternoon,

we are working on several custom work item controls for our tfs project(s) but one problem / oddity we come across over and over again when implementing these controls is that their .InvalidateDatasource(..) method is called multiple times when the user opens a workitem (or selects it in a query result list).

What's the logic behind this - why & when is each call happening?

Best regards & thanks,

-Jörg

Answer 1

Hi Jorg, 

Thanks for your post. 

For the InvalidateDatasource() work in custom control, please refer to the examples in this article: http://msdn.microsoft.com/en-us/magazine/ee309516.aspx.

And you can get custom control samples from the codeplex : http://witcustomcontrols.codeplex.com/releases/view/7240,

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John Qiao [MSFT]
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