关于选项卡控件跨窗体操作的问题

Question

控件

Answer 1

Form1：        private void button1_Click(object sender, EventArgs e)
        {
            Form2 f2 = new Form2();
            f2.SelectTabItem += SelectTabItem;
            f2.Show();
        }        private void SelectTabItem()
        {
            this.tabControl1.SelectedIndex = 1;
        }
Form2：        public delegate void SelectTabItemEvent();
        public event SelectTabItemEvent SelectTabItem;        private void button1_Click(object sender, EventArgs e)
        {
            if (this.SelectTabItem != null)
            {
                this.SelectTabItem();
            }
        }

Answer 2

//form1
public void abc() 
        {
            tabControl1.SelectedIndex = 1;
        }//form2
Form1 f1 = new Form1();
            f1.Show();
            f1.abc();