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WinForms has great databinding support, and the ErrorProvider makes it quiet easy to display business object errors.

However, the conversion errors seems to be swallowed. If I type 'aaa' into a TextBox databound to an integer property, I get nothing from the ErrorProvider. So in this case my UI tells me everything is fine, when 'aaa' is clearly an invalid value for an integer.

I must be missing something!?