C#—Dev XtraTabControl动态增加Tab和关闭选项卡方法

记录一下以免以后忘了

添加using DevExpress.XtraTab;

双击listview增加相应的tabpage，禁止重复添加：

        private void listView_index_MouseDoubleClick(object sender, MouseEventArgs e)
        {
            if (listView_index.SelectedItems.Count > 0)
            {
                ListViewItem lvi = listView_index.SelectedItems[0];//得到选中的项
                string name = lvi.Text;
                //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;
                    }
                }
                //增加tabpage
                XtraTabPage xpage = new XtraTabPage();
                xpage.Name = name;
                xpage.Text = name;
                xpage.Controls.Add(ListView_Tec);//添加要增加的控件
                xtraTabControl.TabPages.Add(xpage);
                xtraTabControl.SelectedTabPage = xpage;//显示该页
            }
        }

1.点击关闭按钮关闭

若要tabpage显示关闭按钮，把xtraTabControl的ClosePageButtonShowMode属性设为InAllTabPageHeaders；若想要首页不显示关闭按钮：

xtraTab_index.ShowCloseButton = DevExpress.Utils.DefaultBoolean.False;//首页不显示关闭按钮

添加xtraTabControl的CloseButtonClick事件：

        private void xtraTabControl_CloseButtonClick(object sender, EventArgs e)//关闭选项卡方法
        {
            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;
                }
            }
        }

2.双击标签关闭

得到你现在鼠标所在的Page

        XtraTabPage CurrentPage = new XtraTabPage();

        private void xtraTabControl_HotTrackedPageChanged(object sender, DevExpress.XtraTab.TabPageChangedEventArgs e)
        {
            try
            {
                CurrentPage = e.Page;
            }
            catch (System.Exception ex)
            {
                CurrentPage = null;
            }
        }

        private void xtraTabControl_MouseDoubleClick(object sender, MouseEventArgs e)
        {
            if (CurrentPage != null)
            {
                xtraTabControl.TabPages.Remove(CurrentPage);
                CurrentPage.Dispose();
            }
        }