In this example i want to create Keypress Event in Column named 'Name' to allow letters and backspace character
here DataGridView.EditingControlShowing event handler adds a handler for a
DataGridViewTextBoxEditingControl event. The editing control is cast to a TextBox to handle the
TextBox.KeyPress event.
KeyPress Event Code
EditingControlShowing Event Code
After that the Keypress event must be work fine
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