访问c＃中其他表单的选项卡控件

Question

我有一个表单1和表单2在窗口形式C＃.in从1我有tabcontrol和添加新选项卡，检测和活动选项卡的功能在表单1功能是公共的工作正常，tabcontrol修改器也是公共的。但是，当我在表单2中调用相同的函数时，它不起作用。

// form 1 function  
private void button_add_new_Click(object sender, EventArgs e)
{
    add_tab(textbox1.text);
}

private void button_active_tab_Click(object sender, EventArgs e)
{
    active_tab(textbox1.text);
}

private void button_delect_Click(object sender, EventArgs e)
{
    delect(textbox1.text);
}

public void add_tab(string str)
{
    TabPage myTabPage = new TabPage(str);
    myTabPage.Name = str;
    tabControl1.TabPages.Add(myTabPage);
}

public void delect(string st)
{
    tabControl1.TabPages.RemoveByKey(st);
}

public void active_tab(string st)
{
    tabControl1.SelectTab(st);
}

private void button_form2_show_Click(object sender, EventArgs e)
{
    Form2 f = new Form2();
    TabPage myTabPage = new TabPage("Form  2 ");
    f.TopLevel = false;
    myTabPage.Name = "Form  2 ";
    myTabPage.Controls.Add(f);
    f.Show();
    tabControl1.TabPages.Add(myTabPage);
    active_tab("Form  2 ");
}

// Form 2 

Answer 1

Pass the instance of Form1 to Form2 in the constructor. Now call the public method in form2 button event by using form1 instance.