test existence of a var in WPF datagrid

Posted by martin on Stack Overflow See other posts from Stack Overflow or by martin
Published on 2010-05-19T08:17:36Z Indexed on 2010/05/19 8:20 UTC
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c#

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datagrid

i want to retrieve data from WPF datagrid depending on certain condition. But the problem is, i am not sure if the data exist. How to check it?

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