using System;

 using System.Collections.Generic;

 using System.ComponentModel;

 using System.Data;

 using System.Drawing;

 using System.Linq;

 using System.Text;

 using System.Windows.Forms;

 namespace multiplePanel

 {

     public partial class Form1 : DevExpress.XtraEditors.XtraForm

     {

         public Form1()

         {

             InitializeComponent();

         }

         private void Form1_Load(object sender, EventArgs e)

         {

              xtraTabbedMdiManager1.MdiParent = this;   //设置控件的父表单..

             Form2 frm = new Form2();

             frm.MdiParent = this;    //设置新建窗体的父表单为当前活动窗口

             frm.Text = "第一个子窗口";

             frm.Show();

             Form3 frm1 = new Form3();

             frm1.MdiParent = this;    //设置新建窗体的父表单为当前活动窗口

             frm1.Text = "第2个子窗口";

             frm1.Show();

             xtraTabbedMdiManager1.SelectedPage = xtraTabbedMdiManager1.Pages[frm];    //使得标签的选择为当前新建的窗口

             this.xtraTabbedMdiManager1.ClosePageButtonShowMode = DevExpress.XtraTab.ClosePageButtonShowMode.InAllTabPagesAndTabControlHeader;    //设置标签后面添加删除按钮 ,  多个标签只需要设置一次..

             //ShowCloseButton = DevExpress.Utils.DefaultBoolean.False; //以此隐藏页面关闭按钮

         }

         private void xtraTabPage1_Paint(object sender, PaintEventArgs e)

         {

         }

     }

 }