Validating data in datagrid

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Hi how do I validate a text value in a datagrid e.g. the user is only allowed to type in a Y or a N. I specifically have a problem with using the PropertyDescriptorCollection. I get the...

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Once again: validating the datagrid

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Hi, After long search of the internet, I couldn't find any solution on validating a datagrid. I have textboxes and validators (required field) in <editItemTemplate> and labels in <ItemTemplate>....

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