求助 Cannot access a disposed object.

[jsgpt003]

  
  public frmTailInBox()//构造函数
{
     ShowCoatInfoInDgv = (cci) =>
                {
                    DataRow[] drs = m_dtCoatTail.Select(string.Format(@"CoatId='{0}'", cci.SourceCode));
                    if (drs.Length == 0)
                    {
                        m_dtCoatTail.Rows.Add(new object[] { cci.SourceCode, cci.CoatCode, "", "", "" });
                        if (dgvCoatTail.Rows.Count > 0)
                        {
                            dgvCoatTail.FirstDisplayedScrollingRowIndex = dgvCoatTail.Rows.Count - 1;
                            dgvCoatTail.ClearSelection();
                        }
                    }
                };
}
 
public void Reader2_OnReadEpc_6C_800(sender s ,envent){
......
if (cci.CoatCode != null)
     {
        this.InvokeExAction<Control, CoatCardInfo>(ShowCoatInfoInDgv, cci);}
     }
在上面红色代码处是从一个线程(Reader2_OnReadEpc_6C_800)向UI线程显示数据 但是这里报错

}


 public static void InvokeExAction<T, TPrams1>(this T @this, Action<TPrams1> action, TPrams1 p1)
                                                       where T : Control
        {
            if (@this.InvokeRequired)
            {
                @this.Invoke(action, new object[] { p1 });
            }
            else
            {
                if (!@this.IsHandleCreated)
                    return;
                if (@this.IsDisposed)
                    //throw new ObjectDisposedException("@this is disposed.");
                    return;
                action(p1);
            }
        }

日志如下：代码红色部分提示出错。
Cannot access a disposed object.
Object name: 'frmTailInBox'.
at System.Windows.Forms.Control.MarshaledInvoke(Control caller, Delegate method, Object[] args, Boolean synchronous)
at System.Windows.Forms.Control.Invoke(Delegate method, Object[] args)
at CoatWareHouseManage.ControlExtensions.InvokeExAction[T,TPrams1](T this, Action`1 action, TPrams1 p1) in C:\Documents and Settings\Administrator\桌面\WenHuaDownCoat\Branches\CoatWareHouseManage-branch\Common\ControlExtensions.cs:line 51
at CoatWareHouseManage.frmTailInBox.Reader2_OnReadEpc_6C_800(Object sender, ReceiveEventArgs e) in C:\Documents and Settings\Administrator\桌面\WenHuaDownCoat\Branches\CoatWareHouseManage-branch\frmTailInBox.cs:line 273 2012-11-11 10:37:53

Invoke or BeginInvoke cannot be called on a control until the window handle has been created.
at System.Windows.Forms.Control.WaitForWaitHandle(WaitHandle waitHandle)
at System.Windows.Forms.Control.MarshaledInvoke(Control caller, Delegate method, Object[] args, Boolean synchronous)
at System.Windows.Forms.Control.Invoke(Delegate method, Object[] args)
at CoatWareHouseManage.ControlExtensions.InvokeExAction[T,TPrams1](T this, Action`1 action, TPrams1 p1) in C:\Documents and Settings\Administrator\桌面\WenHuaDownCoat\Branches\CoatWareHouseManage-branch\Common\ControlExtensions.cs:line 51
at CoatWareHouseManage.frmTailInBox.Reader2_OnReadEpc_6C_800(Object sender, ReceiveEventArgs e) in C:\Documents and Settings\Administrator\桌面\WenHuaDownCoat\Branches\CoatWareHouseManage-branch\frmTailInBox.cs:line 273 2012-11-11 10:37:56

[cs2582030451]

没人... ShowCoatInfoInDgv放在Form_load中 不建议放在构造函数里面