解決方法:
private void mdiFormClosing(object sender, FormClosingEventArgs e)
{
Form mdiForm = (Form)sender;
mdiForm.Hide();//隐藏被關閉的窗體
e.Cancel = true;//撤銷窗體關閉操作
}
解決方法:
private void mdiFormClosing(object sender, FormClosingEventArgs e)
{
Form mdiForm = (Form)sender;
mdiForm.Hide();//隐藏被關閉的窗體
e.Cancel = true;//撤銷窗體關閉操作
}