Use the ChangePassword.CancelButtonCommandName field to represent the CommandName value of the Cancel button. This is useful when configuring any button to mimic the functionality of the Cancel button of the System.Web.UI.WebControls.ChangePassword control.
To assign cancel functionality to any System.Web.UI.WebControls.Button control contained in the System.Web.UI.WebControls.ChangePassword control, set the Button.CommandName property of the button to the string that is contained in the ChangePassword.CancelButtonCommandName field.
The Cancel button can appear on the ChangePassword template or the Success template. Clicking the Cancel button on the Success template will not undo the password change; it will clear the text boxes. To add custom functionality to the Cancel button, create an event handler for the ChangePassword.CancelButtonClick event.