关闭窗体右上角那个X 弹出对话框询问，这个怎么实现？

[splendor_hh]

关闭窗体右上角那个X 弹出对话框询问，这个怎么实现？ 询问一下是否确定退出？？

[califord]

e.Cancel=false;试一下

[止戈而立]

其实就这么简单的：

private void Form1_Closing(object sender, System.ComponentModel.CancelEventArgs e)
{
if(MessageBox.Show("你确定要退出吗？","提示",MessageBoxButtons.OKCancel,MessageBoxIcon.Question)==DialogResult.Cancel)e.Cancel=true;
}

[止戈而立]

Closing事件。。
加
MessageBox.Show();

[splendor_hh]

那如果我点YES，那执行Form1.close ???

[splendor_hh]

晕了，我点NO 窗体也会关掉！~

[Macosx]

当然不是那么简单

private void Form1_Closing(object sender, System.ComponentModel.CancelEventArgs e)
{
// Determine if text has changed in the textbox by comparing to original text.
if (textBox1.Text != strMyOriginalText)
{
// Display a MsgBox asking the user to save changes or abort.
if(MessageBox.Show("Do you want to save changes to your text?", "My Application",
MessageBoxButtons.YesNo) == DialogResult.Yes)
{
// Cancel the Closing event from closing the form.
e.Cancel = true;
// Call method to save file...
}
}
}

[zhangjianying]

private void MainFormClosing(object sender, System.ComponentModel.CancelEventArgs e)
{
if ( MessageBox.Show("是否退出", "Name Entry Error",
MessageBoxButtons.OKCancel, MessageBoxIcon.Exclamation)!=DialogResult.OK)
e.Cancel=true;
}

[清平布衣]

if (MessageBox.Show("确认要退出吗？", "确认！", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
e.Cancel = false;
else
e.Cancel = true;

[Nanako831108]

private void FrmMain_Closing(object sender, System.ComponentModel.CancelEventArgs e)
{

DialogResult result;
MessageBoxButtons buttons = MessageBoxButtons.YesNo;

result = MessageBox.Show(this, "确定要退出吗？", "XXX系统", buttons);

if(result == DialogResult.Yes)
{

Application.Exit();

}
else
{
e.Cancel=true;

}
}

[splendor_hh]

if( MessageBox.Show("确定要退出吗？","冰点台球",MessageBoxButtons.YesNo,MessageBoxIcon.Question)==DialogResult.Yes)
{
e.Cancel=true;
}
看看我的，我这样写了点否 就退出了，点是就他就不退出！~~