winforms - 请求的剪贴板操作未成功

Question

Exception Type: ExternalException

Message: Requested Clipboard operation did not succeed.

Method: ThrowIfFailed

Source: System.Windows.Forms



Stack Trace:

   at System.Windows.Forms.Clipboard.ThrowIfFailed(Int32 hr)
   at System.Windows.Forms.Clipboard.SetDataObject(Object data, Boolean copy, Int32 retryTimes, Int32 retryDelay)
   at System.Windows.Forms.Clipboard.SetText(String text, TextDataFormat format)
   at System.Windows.Forms.Clipboard.SetText(String text)
   at Deerfield.Base.Controls.DataGridView.ProcessCmdKey(Message& msg, Keys keyData) in C:\Users\Developer\Desktop\deerfield\src\core\Deerfield\Deerfield.Base\Controls\DataGridView.cs:line 555
   at System.Windows.Forms.Control.ProcessCmdKey(Message& msg, Keys keyData)
   at System.Windows.Forms.Control.ProcessCmdKey(Message& msg, Keys keyData)
   at System.Windows.Forms.TextBoxBase.ProcessCmdKey(Message& msg, Keys keyData)
   at System.Windows.Forms.Control.PreProcessMessage(Message& msg)
   at System.Windows.Forms.Control.PreProcessControlMessageInternal(Control target, Message& msg)
   at System.Windows.Forms.Application.ThreadContext.PreTranslateMessage(MSG& msg)

我用谷歌搜索了一下，但是对于为什么会这样，我无法得到一个好的答案。

MSDN文档说，这通常在用户切换到另一个应用程序时发生，但事实并非如此。

Answer 1

有类似的问题。找到了这个entry，
基本上说在调用中将retryTimes设置为2:

Clipboard.SetDataObject(object data, bool copy, int retryTimes, int retryDelay)

要尝试一下。如果有人可以发布可重现的测试用例，那将很好。