private void FormMain_Load(object sender, EventArgs e) { superTabControl2.Tabs.Clear(); timer1.Start(); buttonX1_Click(null, null); } /// <summary> /// 建立或者顯示一個多文檔界面 /// </summary> /// <param name="caption">窗體標題</param> /// <param name="formType">窗體類型</param> public void SetMdiForm(string caption,Type formType) { #region var tab = superTabControl2.Tabs .Cast<SuperTabItem>() .FirstOrDefault(x => x.Text == caption && x.AttachedControl.GetType() == formType); //若是在現有Tab頁面中沒有找到,那麼就要初始化了Tab頁面了 if (tab==null) { var form = Activator.CreateInstance(formType) as Form; form.TopLevel = false; form.FormBorderStyle = FormBorderStyle.Fixed3D; form.Dock = DockStyle.Fill; //form.Visible = true; tab = new SuperTabItem(); tab.Name = caption; tab.Text = caption; tab.AttachedControl=form as Control; superTabControl2.Tabs.Add(tab); superTabControl2.SelectedTab = tab; superTabControlPanel4.Controls.Add(form); } superTabControl2.SelectedTab = tab; #endregion } private void buttonXSetPwd_Click(object sender, EventArgs e) { SetMdiForm("修改用戶名和密碼",typeof(FormSetPwd)); }