Datagridview rowvalidating delete

This video will first show you the built-in data validation mechanisms enabled in the Grid Control by default.

If you need to check the validity of data entered into individual cells, please refer to the Validating Editors topic.However, the user may prefer to validate all the data cells in a row at once.This scenario can be achieved by using the Row Validating event, which is fired when the user tries to change the current row (changing to another row or when the control loses focus).Note that only the Cell Validating event can keep the editor active,when the validation fails and it does not allow the user to exit the cell until a valid value is filled.However, pressing the Esc key in this situation will revert the initial value of the cell and it will close the editor. The Row Validating event has a slightly different behavior.