/// 
          /// 方法委托          /// 
          ///           ///           ///           public delegate void GetFingerInfor_Delegate(string dwEnrollNum, string enrolldata, int dwMachineID);          /// 
          /// 为控件赋值          /// 
          ///           ///           ///           public void GetFingerInfor(string dwEnrollNum, string enrolldata, int dwMachineID)          {              try              {                  Btn_Read.Text = "读取指纹";                  txt_id.Text = dwEnrollNum;                  txt_fingerprint.Text = enrolldata;                  //关闭监听                  bool b_end = Fingerprint.EndListen(axSB100PC1, dwMachineID);              }              catch (Exception ex)              {                  string str_ex = ex.ToString();              }          }

//调用方法  GetFingerInfor_Delegate fingerInfor = new GetFingerInfor_Delegate(GetFingerInfor);  this.BeginInvoke(fingerInfor, new object[] { dwEnrollNum.ToString(), enrolldata, dwMachineID });