如何在 C# 中的 Windows 面板控件中获取按键事件
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How to get Keypress event in Windows Panel control in C#
提问by ratty
i want to get keypress event in windows panel control in c#, is any body help for me...
我想在 c# 中的 Windows 面板控件中获取按键事件，对我有任何帮助...
采纳答案by James
You should handle the Panel.KeyPressevent.
您应该处理Panel.KeyPress事件。
Example
例子
public void MyKeyPressEventHandler(Object sender, KeyPressEventArgs e)
{
... do something when key is pressed.
}
...
(MyPanel as Control).KeyPress += new KeyPressEventHandler(MyKeyPressEventHandler);
回答by Oliver
The problem is, that at first your main form got the KeyPress and will immediately send this message to the active control. If that doesn't handle this key press it will be bubbled up to the parent control and so on.
问题是，一开始你的主窗体得到了 KeyPress，并会立即将此消息发送到活动控件。如果这不能处理这个按键，它将冒泡到父控件等等。
To intercept this chain, you have to in your Form.KeyPreviewto trueand add an handler to Form.KeyPress. Now you can handle the pressed key within your form.
要拦截这个链，你必须在你的Form.KeyPreviewto 中true添加一个处理程序到Form.KeyPress. 现在您可以在表单中处理按下的键。
回答by Picsdonald
"Panel" objects cannot receive the "KeyPress" event correctly.
“面板”对象无法正确接收“KeyPress”事件。
I've created Paneloverload:
我创建了Panel重载：
public class PersoPanel : Panel
and used the overridden method ProcessCmdKey:
并使用了重写的方法ProcessCmdKey：
protected override bool ProcessCmdKey(ref Message msg, Keys keyData)
to intercept pressed keys:
拦截按下的键：
protected override bool ProcessCmdKey(ref Message msg, Keys keyData)
{
MessageBox.Show("You press " + keyData.ToString());
// dO operations here...
return base.ProcessCmdKey(ref msg, keyData);
}
回答by ratty
Panel + Keypress - C# Discussion Boards - CodeProject
面板 + 按键 - C# 讨论板 - CodeProject
http://www.codeproject.com/Messages/704386/Panel-plus-Keypress.aspx
http://www.codeproject.com/Messages/704386/Panel-plus-Keypress.aspx
