This enumeration lists the various button combinations you can request in the MessageBox.Show() method. public enum MessageBoxButtons { OK = 0 , OKCancel = 1 , AbortRetryIgnore = 2 , YesNoCancel = 3 , YesNo = 4 , RetryCancel = 5 } HierarchySystem.Object System.ValueType System.Enum(System.IComparabl, System.IFormattable , System.IConvertible) MessageBoxButtons Passed ToSystem.Windows.Forms.Design.IUIService.ShowMessage() , MessageBox.Show() |