框架提供关闭当前窗体，除此之外全部关闭窗体的功能（弹出菜单）

        private void menuCloseThis_Click(object sender, EventArgs e)

        {//关闭当前窗体

            int i = xtraTabbedMdiManager1.Pages.IndexOf(xtraTabbedMdiManager1.SelectedPage);//当前窗体的序号

            Form form = xtraTabbedMdiManager1.SelectedPage.MdiChild;

            if (form is frmModuleContainer) { }

            else

            {

                form.Close();//不关闭模块主窗体               

                if (xtraTabbedMdiManager1.Pages.Count - 1 >= i)

                {

                    //显示相邻的窗体                   

                    xtraTabbedMdiManager1.SelectedPage = xtraTabbedMdiManager1.Pages[i];

                }

            }

        }

        private void menuCloseAll_Click(object sender, EventArgs e)

        {//除此之外全部关闭

            Form currentForm = xtraTabbedMdiManager1.SelectedPage.MdiChild;//当前窗体

            IList list = new ArrayList();

            foreach (XtraMdiTabPage p in xtraTabbedMdiManager1.Pages) list.Add(p.MdiChild);//构建窗体列表

            foreach (Form form in list)

            {

                //不关闭当前窗体,模块主窗体及模块容器窗体

                if ((currentForm == form) || (form is frmModuleContainer) || (form is IModuleBase)) continue;

                form.Close();

            }

        }

        private void xtraTabbedMdiManager1_MouseUp(object sender, MouseEventArgs e)

        {

            //点左键无效, 必须是点右键弹出菜单

            if (e.Button != MouseButtons.Right) return;

            menuCloseThis.Enabled = !(xtraTabbedMdiManager1.SelectedPage.MdiChild is frmModuleContainer);//模块主窗体禁止关闭

            BaseTabHitInfo hint = xtraTabbedMdiManager1.CalcHitInfo(e.Location);

            //点击有效,且点击在TabPage标题上

            if (hint.IsValid && (hint.Page != null))

            {

                //有效子窗体

                if (xtraTabbedMdiManager1.SelectedPage.MdiChild != null)

                {

                    Point p = xtraTabbedMdiManager1.SelectedPage.MdiChild.PointToScreen(e.Location);

                    menuStripCloseForm.Show(p); //显示弹出菜单

                }

            }

        }