WebApplication，在DetailView的Tab中，当跳转页签时即刻保存提交内容的解决方法

[C#]Open in popup window[code]public class CommitOnTabChangeViewController : ViewController
    {
        public CommitOnTabChangeViewController()
        {
            this.TargetViewType = ViewType.DetailView;
        }
        protected override void OnActivated()
        {
            base.OnActivated();
            ((WebLayoutManager)((DetailView)View).LayoutManager).ItemCreated += new EventHandler<ItemCreatedEventArgs>(ViewController1_ItemCreated);
        }
        protected override void OnDeactivating()
        {
            ((WebLayoutManager)((DetailView)View).LayoutManager).ItemCreated -= new EventHandler<ItemCreatedEventArgs>(ViewController1_ItemCreated);
            base.OnDeactivating();
        }
        void ViewController1_ItemCreated(object sender, ItemCreatedEventArgs e)
        {
            TabbedGroupTemplateContainer tabbedGroup = e.TemplateContainer as TabbedGroupTemplateContainer;
            if (tabbedGroup != null)
            {
                ASPxPageControlEx tabControl = tabbedGroup.Controls[0] as ASPxPageControlEx;
                if (tabControl != null)
                {
                    tabControl.ActiveTabChanged += new DevExpress.Web.ASPxTabControl.TabControlEventHandler(tabControl_ActiveTabChanged);
                }
            }
        }
        void tabControl_ActiveTabChanged(object source, DevExpress.Web.ASPxTabControl.TabControlEventArgs e)
        {
            try
            {
                this.ObjectSpace.CommitChanges();
            }
            catch { }
        }
    }