C rowvalidating

Is there anything in WPF I can use to get the same result, an event raised only after the user is done changing the text?Is it safe to show a Message Box from the Data Grid View Row Validating event handler?If it is less than five characters, you set the Error Text property of that cell to some error message.

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It not only supports data binding but also provides frequently needed column types, such as combo box and button.

At run time, if the validation fails, the Data Grid View displays a red exclamation icon in that cell (see below).

Hovering the mouse pointer on the icon displays the Error Text that you set earlier.

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If the row does not pass validation, set the Cancel Event Args. Canceling this event prevents the Row Validated, Control. Validated events from occurring, and also prevents the user from leaving the invalid row and prevents the row from being saved to an external data source in data bound mode.

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