C＃以不同的形式设置所有按钮 [英] C# setting up all buttons in different forms

问题描述

我试图将我的公共方法用于每个表单。我想要的是当方法被调用时，找到表格中的所有按钮并在点击时在每个按钮中播放系统声音。



我是什么尝试过：

im trying to use my public method to every form. what i want is when the method is call, find all the buttons in a form and play system sound in each button when it is CLICKED.

What I have tried:

public static void setButtons(Form  f)
{
    foreach (Control c in f.Controls)
    {
        Button btn = c as Button;

        if (c == btn)
        {
            System.Media.SystemSounds.Beep.Play();
        }
    }
}

推荐答案

你需要使用控件的 InvokeRequired 属性，请参阅：

如何：对Windows窗体控件进行线程安全调用Microsoft Docs [ ^ ]

You need to use the control's InvokeRequired property, see:
How to: Make Thread-Safe Calls to Windows Forms Controls | Microsoft Docs[^]

public static void setButtons(Form  f)
        {
            foreach (Control c in f.Controls)
            {
                Button btn = c as Button;
 
                if (c == btn)
                {
					btn.Click += btn_Click;
                }
            }
        }

		static void btn_Click(object sender, EventArgs e)
		{
			System.Media.SystemSounds.Beep.Play();
		}

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