使用C#中的组合键来触发按钮单击事件 [英] Fire button click event using a key combination in c#

问题描述

我创建了一个从常规.Net按钮派生的自定义按钮，并添加了以下属性以添加快捷键组合:

I've created custom button derived from a normal .Net button and have added the following property to add a short cut key combination:

public Keys ShortCutKey { get; set; }

我希望此组合触发按钮的click事件，但不知道将按钮放置在窗体上时如何实现此操作.我知道执行按钮快捷方式的标准方法是使用&在快捷方式字符之前，但我需要使用组合键.

I want this combination to fire the click event of the button but have no idea how to implement this when the button is placed on a form. I know the standard way of doing a button shortcut is to use the & before the short cut character but I need to use a key combination.

有什么想法吗?

非常感谢

推荐答案

重写表单的ProcessCmdKey()方法以检测快捷键.像这样:

Override the form's ProcessCmdKey() method to detect shortcut keystrokes. Like this:

    private bool findShortCut(Control.ControlCollection ctls, Keys keydata) {
        foreach (Control ctl in ctls) {
            var btn = ctl as MyButton;
            if (btn != null && btn.ShortCutKey == keydata) {
                btn.PerformClick();
                return true;
            }
            if (findShortCut(ctl.Controls, keydata)) return true;
        }
        return false;
    }

    protected override bool ProcessCmdKey(ref Message msg, Keys keyData) {
        if (findShortCut(this.Controls, keyData)) return true;
        return base.ProcessCmdKey(ref msg, keyData);
    }

假设MyButton是您的自定义按钮控件类.

Where MyButton is assumed to be your custom button control class.

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