C# 检测winforms中的箭头键
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/13163447/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Detecting arrows keys in winforms
提问by Win Coder
Possible Duplicate:
Up, Down, Left and Right arrow keys do not trigger KeyDown event
First see the code.
先看代码。
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Threading;
namespace winform_project
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void Form1_KeyPress(object sender, KeyPressEventArgs e)
{
MessageBox.Show("Hello");
}
}
}
I am able to detect alpha-numeric keys. However i am not able to detect arrow keys.
我能够检测字母数字键。但是我无法检测到箭头键。
Any help would be appreciated in this regard.
在这方面的任何帮助将不胜感激。
采纳答案by Win Coder
Ok so after some research i found out the simplest way to handle arrow key events is to override the ProcessCmdKey method.
好的，经过一些研究，我发现处理箭头键事件的最简单方法是覆盖 ProcessCmdKey 方法。
protected override bool ProcessCmdKey(ref Message msg, Keys keyData)
{
if(keyData == Keys.Left)
{
MessageBox.Show("You pressed Left arrow key");
return true;
}
return base.ProcessCmdKey(ref msg, keyData);
}
Hope this helps.
希望这可以帮助。
