using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; namespace VisualInheritance { public partial class frmInherited : VisualInheritance.frmBase { public frmInherited() { InitializeComponent(); } protected override void okButton_Click(object sender, EventArgs e) { MessageBox.Show("The form will close"); this.Close(); } } }