Canceling this event cancels the changes to the current cell.When this event is canceled in data bound mode, the new value is not pushed to the underlying data source.If it is less than five characters, you set the Error Text property of that cell to some error message.Notice how the Column Index and Row Index properties of Data Grid View Cell Validating Event Args parameter are used.The Data Grid View control of Windows Forms is a versatile control that can help you create professional-looking data entry forms.It not only supports data binding but also provides frequently needed column types, such as combo box and button.When this event is canceled in virtual mode, the Cell Value Pushed event is not raised.


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You do this by using the Formatted Value property of the Data Grid View Cell Validating Event Args parameter.

This property returns the new value entered in the cell.

Add the event handle of this event and copy the following code into the event handler.

Input some invalid values and try to move the focus.