DataSource Controls :: SQL Datasource / To Show A Message That There Is No Data Selected?

Mar 2, 2010 SQL datasource C# code behind

I want the webpage to show a message that there is no data selected,

Instead of showing blank details view

here is a picture of blank details view:


What C# code do i need to use so that, whenever I enter that page, only an error message will show up

instead of the details view ..etc.

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Stack Trace: [Code]....

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