如何编写Windows窗体中的关闭按钮？ [英] How to code the close button in the windows form?

问题描述

大家好，



我可以问一下是否有人知道如何在表格的关闭按钮中编写代码。



例如，如果用户点击关闭按钮（带有X的红色框），则显示消息.box：你确定退出是/否。



谢谢！

Hi Guys,

Can I ask if someone have an idea on how can I write a code in the close button in the form.

Example, if the user click the close button (the red box with X) sho message.box : are you sure to exit yes/NO.

Thanks!

推荐答案

处理FormClosing事件：

Handle the FormClosing event:

private void frmMain_FormClosing(object sender, FormClosingEventArgs e)
    {
    if (MessageBox.Show("Are you sure?", "Close", MessageBoxButtons.YesNo) == DialogResult.No)
        {
        e.Cancel = true;
        }
    }

private void Form1_FormClosing(object sender, FormClosingEventArgs e)
      {

          var str = MessageBox.Show("exit", "", MessageBoxButtons.YesNo).ToString();

          if (str == "Yes")
              this.Close();
          else
              e.Cancel = true;

      }

在FormClosing事件中添加以下代码

At the event of FormClosing add the following code

private void Form1_FormClosing(object sender, FormClosingEventArgs e)
        {
            if (DialogResult.No == MessageBox.Show("are you sure to exit", "Alert", MessageBoxButtons.YesNo, MessageBoxIcon.Asterisk))
            {
                e.Cancel = true;
            }

        }

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