/// <summary> /// 年级列表 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void subGradeList_Click(object sender, EventArgs e) { bool b1 = CheckFormIsOpen(typeof(FrmGradeList).Name); if (!b1) { FrmGradeList frmGradeList = new FrmGradeList(); frmGradeList.MdiParent = this; frmGradeList.Show(); } }
/// <summary> /// 年纪列表 也只能打开一个 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void subGradeList_Click(object sender, EventArgs e) { bool bl = CheckForm(typeof(FrmGradeList).Name); //type 获取指定类的类对象并使用对象信息 if (!bl) { FrmGradeList fGradeList = new FrmGradeList(); fGradeList.MdiParent = this; fGradeList.Show(); } }