导入代购票信息后出错异常

terry

导入别人给的代购票信息输入验证码后出现异常：
错误信息
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System.ArgumentException: Delegate to an instance method cannot have null 'this'.
   at System.MulticastDelegate.ThrowNullThisInDelegateToInstance()
   at ‚.
.
( , IWin32Window ) in #wl:line 16777215
   at ‚.
.
(IWin32Window ) in #wl:line 251
   at ..(Object , EventArgs ) in #5l:line 16777215
   at System.Windows.Forms.Control.OnClick(EventArgs e)
   at DevComponents.DotNetBar.ButtonX.OnClick(EventArgs e)
   at DevComponents.DotNetBar.ButtonX.OnMouseUp(MouseEventArgs e)
   at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at DevComponents.DotNetBar.PopupItemControl.WndProc(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

环境信息
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操作系统版本：Microsoft Windows NT 5.1.2600 Service Pack 3
程序运行目录：C:\Documents and Settings\Administrator\桌面\订票助手.NET