/// <summary> /// Extends BeginInvoke so that when a state object is not needed, null does not need to be passed. /// <example> /// datagridviewcellformattingeventhandler.BeginInvoke(sender, e, callback); /// </example> /// </summary> public static IAsyncResult BeginInvoke(this DataGridViewCellFormattingEventHandler datagridviewcellformattingeventhandler, Object sender, DataGridViewCellFormattingEventArgs e, AsyncCallback callback) { if (datagridviewcellformattingeventhandler == null) { throw new ArgumentNullException("datagridviewcellformattingeventhandler"); } return(datagridviewcellformattingeventhandler.BeginInvoke(sender, e, callback, null)); }