Message in Chinese (Simplified) (中文(简体))
被指定为此窗体的 MdiParent 的窗体不是 MdiContainer。
Unlocalized message
Form that was specified to be the MdiParent for this form is not an MdiContainer.
Search by Google被指定为此窗体的 MdiParent 的窗体不是 MdiContainer。
Form that was specified to be the MdiParent for this form is not an MdiContainer.
Search by Google