C# 停止按钮获得焦点点击 [英] C# Stop Button From Gaining Focus on Click

问题描述

我有几个按钮，当点击它们时，我不希望它们获得焦点，也不希望空格键再次按下"它们.

I have several buttons that when clicked I don't want them to get focus nor do I want the space bar to 'press' them again.

我想要与 Windows 计算器中的按钮相同的功能.

I want the same functionality as the buttons in windows calculator.

谷歌搜索和搜索堆栈一切似乎都与表单有关，例如.使表单在 C# 中不可聚焦

Googled and searched stack everything seems to be about forms eg. Make a form not focusable in C#

我知道我应该重写 WndProc 但不完全确定如何处理我应该捕获/忽略的消息等.据我所知:

I know I'm supposed to rewrite WndProc but not exactly sure how to proceed as to what messages I should catch/ignore etc. As far as I got:

protected override void WndProc(ref Message m)
    {
        base.WndProc(ref m);
    }

推荐答案

您所要做的就是将此行添加到键的 Click 事件的末尾:

All you got to do is add this line to the end of the key's Click event:

this.Focus();

这一行会导致按钮失去焦点，表单获得焦点，空格键无效，从而满足你的2个条件.

This line will cause the button to lose focus, the form will gain focus and spacebar will have no effect, thus satisfying your 2 conditions.

现在，如果您不想再次单击该按钮，请改为添加以下两行:

Now if you don't want the button to be able to be clicked again, then add these 2 lines instead:

this.Focus();
((Button)sender).Enabled = false;

这将执行另一行所做的操作，此外，它将禁用按钮.

This will do what the other line did and in addition, it will disable the button.

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