关闭另一个“表单”时如何将焦点集中到“标签页”

Question

I have two forms, form0 and form1 . form0 has a tabcontrol with three pages. ( tagpage1 , tabpage2 and tabpage3 )

I want tabpage2 to be focused when form1 closes. So basically, how do I control the state of a tabpage of another form's tabcontrol?

Any help is very much appreciated!

Answer 1

That's what event handlers are designed to do. You'll want to write a handler for the form's FormClosed event. Similar to this:

    private void button1_Click(object sender, EventArgs e) {
        var frm = new form1();
        frm.FormClosed += new FormClosedEventHandler(frm_FormClosed);
        frm.Show();
    }

    void frm_FormClosed(object sender, FormClosedEventArgs e) {
        tabControl1.SelectedTab = tabPage2;
    }

Or more compactly:

        var frm = new form1();
        frm.FormClosed += delegate { tabControl1.SelectedTab = tabPage2; };
        frm.Show();

With the Big Advantage that this is now entirely an implementation detail of form0, no special code or knowledge of form0 is required in the form1 class.

Answer 2

在关闭Form1时未在窗体中的名称空间级别中定义静态事件触发此事件并在Form2上进行处理以选择require选项卡