// 该函数用于只创建一个对象
public static FrmSingleton CreateFrm()
{
if (m_frmSingletonFrm == null)
{
m_frmSingletonFrm = new FrmSingleton();
}
return(m_frmSingletonFrm);
}
// 当该窗口关闭时释放
protected override void OnClosed(EventArgs e)
{
base.OnClosed(e);
m_frmSingletonFrm = null;
}
private void btn_CreateSingletonFrm_Click(object sender, EventArgs e)
{
FrmSingleton l_frmSingleton = FrmSingleton.CreateFrm();
l_frmSingleton.Show();
}