Use the CommandField.ShowCancelButton property to specify whether the Cancel button is displayed in a System.Web.UI.WebControls.CommandField object. A Cancel button can be displayed in a System.Web.UI.WebControls.CommandField field when the corresponding record in a data-bound control is in edit or insert mode. The Cancel button allows the user to cancel the edit or insert operation and returns the record to its normal display mode.

When the ButtonFieldBase.ButtonType property of a System.Web.UI.WebControls.CommandField field is set to ButtonType.Button or ButtonType.Link, use the CommandField.CancelText property to specify the text to display for a Cancel button. Alternatively, you can display an image by first setting the ButtonFieldBase.ButtonType property to ButtonType.Image and then setting the CommandField.CancelImageUrl property.