DevExpress DevExpress XtraTabControl 加载Form

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代码：

private void treeList1_DoubleClick(object sender, EventArgs e)        {          TreeListNode clickedNode = this.treeList1.FocusedNode;                              // string disPlayText = clickedNode.GetDisplayText("FORMNAME");            string name = clickedNode.GetDisplayText("NAME");            string formname = clickedNode.GetDisplayText("FORMNAME");            if (name != "")        //trvMeun.SelectedNode.LastNode == null            {                //判断是否已创建过                foreach (XtraTabPage page in xtraTabControl.TabPages)                {                    if (page.Text == name)                    {                        xtraTabControl.SelectedTabPage = page;//显示该页                        return;                    }                }                XtraTabPage xpage = new XtraTabPage();                ObjectHandle obj = Activator.CreateInstance(null, formname);   //需要带全局项目                //obj.Unwrap返回被包装的对象                if (obj != null)                {                    Form frm = (Form)obj.Unwrap();                    frm.Visible = true;                    frm.Dock = DockStyle.Fill;                    frm.FormBorderStyle = FormBorderStyle.None;                    frm.TopLevel = false;//在这里一定要注意  负责是加载不出来的                    xpage.Controls.Add(frm);//添加要增加的控件                    xpage.Text = name;     //添加名称                    xtraTabControl.TabPages.Add(xpage);                    xtraTabControl.SelectedTabPage = xpage;//显示该页                }                   }        }        XtraTabPage CurrentPage = new XtraTabPage();        private void xtraTabControl_CloseButtonClick(object sender, EventArgs e)        {            DevExpress.XtraTab.ViewInfo.ClosePageButtonEventArgs EArg = (DevExpress.XtraTab.ViewInfo.ClosePageButtonEventArgs)e;            string name = EArg.Page.Text;//得到关闭的选项卡的text            foreach (XtraTabPage page in xtraTabControl.TabPages)//遍历得到和关闭的选项卡一样的Text            {                if (page.Text == name)                {                    xtraTabControl.TabPages.Remove(page);                    page.Dispose();                    return;                }            }        }        private void xtraTabControl_MouseDoubleClick(object sender, MouseEventArgs e)        {            if (CurrentPage != null)            {                xtraTabControl.TabPages.Remove(CurrentPage);                CurrentPage.Dispose();            }        }

效果：

           

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