选项卡调其他窗体方法

tabControl1的selectclick事件中处理。

TabPage pages = tabControl1.SelectedTab;
            //// 货物打包
            if (pages.Name == this.tabPage1.Name)
            {
              var frm = new Form2();
              frm.TopLevel = false;
              frm.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;
              frm.Dock = DockStyle.Fill;
              frm.Show();
              this.tabPage1.Controls.Add(frm);
            }