private void Form1_FormClosing(object sender, FormClosingEventArgs e) { DialogResult dr = MessageBox.Show("是否关闭?","提示!",MessageBoxButtons.OKCancel); if(dr!=DialogResult.OK) { e.Cancel = true; } }
private void Form1_FormClosing(object sender, FormClosingEventArgs e) { DialogResult dr = MessageBox.Show("是否关闭?","提示!",MessageBoxButtons.OKCancel); if(dr!=DialogResult.OK) { e.Cancel = true; } }