急呀

Question

private void 客户信息报表ToolStripMenuItem_Click(object sender, EventArgs e)
        {            foreach (Form child_form in this.MdiChildren)
            {
                if (child_form.Name == "khxx")
                {
                    child_form.Visible = true;
                    if (child_form.WindowState == FormWindowState.Minimized)
                    {
                        child_form.WindowState = FormWindowState.Normal;
                    }
                    child_form.Activate();
                    return;
                }
            }
            khxx kh_xx = new khxx();
            kh_xx.MdiParent = this;
            kh_xx.WindowState = FormWindowState.Maximized;
            kh_xx.Show();
        }
出现错误：错误 1 “JinXiaoCun.khxx”并不包含“MdiParent”的定义
         错误 2 “JinXiaoCun.khxx”并不包含“WindowState”的定义
         错误 3 “JinXiaoCun.khxx”并不包含“Show”的定义

Answer 1

如上所说，或那几个方法用了private修饰