using System; using System.Windows.Forms; namespace ahwildlife.Utils {     /// <summary>     /// 跨线程访问控件的委托     /// </summary>     public delegate void InvokeDelegate();     /// <summary>     /// 跨线程访问控件类     /// </summary>     public class InvokeUtil     {         /// <summary>         /// 跨线程访问控件         /// </summary>         /// <param name="ctrl">Form对象</param>         /// <param name="de">委托</param>         public static void Invoke(Control ctrl, Delegate de)         {             if (ctrl.IsHandleCreated)             {                 ctrl.BeginInvoke(de);             }         }     } }

InvokeDelegate invokeDelegate = delegate() {         button4.Enabled = false;         button5.Enabled = false;         button6.Enabled = false;         button7.Enabled = false;         button8.Enabled = false; }; InvokeUtil.Invoke(this, invokeDelegate);