Winforms中的关键控制事件 [英] Key control events in winforms

问题描述

我按下GUI中的一个按钮，按下按钮后会显示一条消息.但是keydown事件无法正常工作.取而代之的是，它同时使用空格键"和"Enter"键以及WinForms中的设置键.

我尝试过的事情:

//如前所述

I press a button in GUI.Button displays a message after I press it. But the keydown event does not work properly. Instead, it takes both "spacebar" and "Enter" keys along with the set keys in WinForms

What I have tried:

//As mentioned

this.KeyPreview = true;

//

//

this.KeyDown += new KeyEventHandler(Form1_KeyDown);

//在键盘上

//IN KEYDOWN

if (e.KeyCode == Keys.H)
         {
             button1.PerformClick();
         }

推荐答案

如果我将该代码插入测试应用程序中:

If I insert that code into a test app:

public frmMain()
    {
    InitializeComponent();
    this.KeyPreview = true;
    this.KeyDown += new KeyEventHandler(frmMain_KeyDown);
    }

private void frmMain_KeyDown(object sender, KeyEventArgs e)
    {
    if (e.KeyCode == Keys.H)
        {
        myButton.PerformClick();
        }
    }

private void MyButton_Click(object sender, EventArgs e)
    {
    Console.WriteLine("Done");
    }

然后，每当我在窗体具有焦点的位置上按键盘上的"H"键，它就会在输出窗格中打印"Done"(这是我的期望.).
因此，鉴于我复制并粘贴了您的代码，您在做什么与我不同...

Then every time I press "H" on the keyboard while the form has the focus, it prints "Done" in the output pane - which is what I expect.
So what are you doing that is different to me, given that I copy''n''pasted your code...

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