public override int GetHashCode() { unchecked { var hashCode = (RoofColor != null ? RoofColor.GetHashCode() : 0); hashCode = (hashCode * 397) ^ NumberOfWindows; hashCode = (hashCode * 397) ^ (Room != null ? Room.GetHashCode() : 0); return(hashCode); } }
private void button4_Click(object sender, EventArgs e) { RoofColor.ShowDialog(); }