.NET:如何让 Escape 关闭 MessageBox.Show()？

Question

假设代码:

MessageBox.Show(this, 
       "Would you like the differential girdle spring on the up-end of the grammeters?", 
       "Smi-Boloid Stater Slots", 
       MessageBoxButtons.YesNo, 
       MessageBoxIcon.Warning);

如果用户按 逃脱 ，我希望它关闭消息框和 Show()方法可以返回 DialogResult.None .

相关问题:如何启用 MessageBox.Show 右上角的“X”以让用户中止？

有点像 Windows 资源管理器的确认对话框让您按 Esc 键中止。

有点像 Internet Explorer 确认对话框让您按 Esc 键中止。

有点像 Outlook 确认对话框让您按 Esc 键中止。

有点像宇宙历史中的每个对话框都让用户按 Esc 键或单击 X，以便说:

"I have no earthly idea what you're asking me, please just don't break my computer."

From the Vista UX Guidelines

Use Yes and No buttons only to respond to yes or no questions. The main instruction should be naturally expressed as a yes or no question. Never use OK and Cancel for yes or no questions.

Answer 1

您必须使用枚举值“MessageBoxButtons.YesNoCancel”启用“取消”选项

这将返回 DialogResult.Cancel