System.ComponentModel.Design.DesignerEventHandler public sealed delegate DesignerEventHandler : MulticastDelegate Documentation Code public DesignerEventHandler(object object, IntPtr method) public virtual IAsyncResult BeginInvoke(object sender, DesignerEventArgs e, AsyncCallback callback, object object) public virtual void EndInvoke(IAsyncResult result) public virtual void Invoke(object sender, DesignerEventArgs e)