一、tabcontrol

<TabControl Grid.Row="0" x:Name="tbc_main" ItemsSource="{Binding DataList,Mode=OneWay}" SelectedIndex="{Binding TabSelectedIndex}">



                <TabControl.ItemTemplate>



                    <DataTemplate>



                        <StackPanel Orientation="Horizontal" Margin="0" Height="28">



                            <TextBlock Text="{Binding Header}" Margin="10,7,0,0"/>



                            <Button x:Name="btn_close" Content="×" BorderBrush="Transparent" Width="16" Cursor="Hand" Margin="10,0,0,0"




                                    Background="{x:Null}" Command="{Binding DataContext.CloseTabCommand,ElementName=tbc_main}" CommandParameter="{Binding ElementName=btn_close}"








                                    Padding="0"  >



                            </Button>



                        </StackPanel>



                    </DataTemplate>



                </TabControl.ItemTemplate>



                <TabControl.ContentTemplate>



                    <DataTemplate>



                        <ContentControl Content="{Binding Content}"></ContentControl>



                    </DataTemplate>



                </TabControl.ContentTemplate>



            </TabControl>

一、新增

/// <summary>



        /// 新增页面命令：传递参数




        /// </summary>




        public RelayCommand<string> AddTabItemCommand =>



            new Lazy<RelayCommand<string>>(() =>



                new RelayCommand<string>(AddTabItem)).Value;







        /// <summary>




        /// 添加新页面




        /// </summary>




        /// <param name="param">菜单关联新页面参数</param>




        private void AddTabItem(string param)




        {



            JObject obj = (JObject)JsonConvert.DeserializeObject(param);



            string header = obj["header"].ToString();



            string url = obj["url"].ToString();



            Boolean isNew = true;



            int i = 0;



            for (i = 0; i < DataList.Count; i++)



            {



                if (string.Equals(DataList[i].Header, header))



                {



                    isNew = false;



                    break;



                }



            }



            if (isNew)



            {



                Frame fm = new Frame();



                fm.Source = new Uri(url, UriKind.Relative);



                DataList.Add(new TabControlModel



                {



                    Header = header,



                    Content = fm



                });



                TabSelectedIndex = DataList.ToArray().Length - 1;



            }



            else




            {







                TabSelectedIndex = i;



                return;



            }



        }

二、关闭tab

/// <summary>



        /// 关闭tab




        /// </summary>




        public RelayCommand<Button> CloseTabCommand =>



            new Lazy<RelayCommand<Button>>(() =>



                new RelayCommand<Button>(CloseTab)).Value;







        public void CloseTab(Button btn)




        {



            TabItem tbc = FindParentTabControl(btn);



            foreach (TabControlModel item in DataList)



            {



                if (item.Equals(tbc.Content))



                {



                    DataList.Remove(item);



                    break;



                }



            }



        }







        /// <summary>




        /// 递归找父级TabControl




        /// </summary>




        /// <param name="reference">依赖对象</param>




        /// <returns>TabControl</returns>




        private TabItem FindParentTabControl(DependencyObject reference)




        {



            DependencyObject dObj = VisualTreeHelper.GetParent(reference);



            if (dObj == null)



                return null;



            if (dObj.GetType() == typeof(TabItem))



                return dObj as TabItem;



            else




                return FindParentTabControl(dObj);



        }

三、刷新

viewmodel和ViewModelLocator增加时间参数传递

public PIndexViewModel(string dateTime)



        {



            MenuList = GetMenuList();



            MenuSelectedIndex = 0;



            DataList = GetTabControlDataList();







            //接收其他页面传递的消息,第二个参数为消息key，控制接收对象




            Messenger.Default.Register<String>(this, "AddTab", ReceiveInfo);







            DateShow();



            timer = new DispatcherTimer();



            timer.Interval = TimeSpan.FromSeconds(1);



            timer.Tick += new EventHandler(TimerTick);



            timer.Start();



        }

SimpleIoc.Default.Register(() => new PIndexViewModel(DateTime.Now.ToString("HH:mm:ss")));








public PIndexViewModel PIView



        {



            get




            {



                return ServiceLocator.Current.GetInstance<PIndexViewModel>(DateTime.Now.ToString("HH:mm:ss"));



            }



        }

四、传参

WPF程序是客户端程序，也就是说每个用户在自己的机器上启动的WPF程序，这些程序是互相独立的，因此不会出现多个用户同时访问的问题。

表单传值和querystring[]传值的方法是因为ASP.NET背后的HTTP协议是无状态协议，因此需要在不同的页面之间（因为Web服务器不会记住各页面的状态）传递信息。 而WPF程序里面的各个page都是运行在同一个进程空间内，共享同一块内存，所以用Application.Current.Properties就可以了。

private void Jt(string param)



        {



            //给接谈传递页面参数




            Application.Current.Properties["pjt"] = param;



            SendInfo = "{ \"header\":\"测试\" , \"url\":\"/Pages/PJt.xaml\" }";



            //消息传递给PindexModel接收，打开新的页面,第二个参数为消息key，控制接收对象




            Messenger.Default.Send<String>(SendInfo, "AddTab");







        }

public PJtViewModel(string dateTime)



        {



            string param=(string)Application.Current.Properties["pjt"];



            Model = GetXfInfo(param);



            GetXfjPcCount(Model);







            //接收其他页面传递的消息,第二个参数为消息key，控制接收对象




            Messenger.Default.Register<String>(this, "Xfpc_xtxfsx", ReceiveXfpcXtxfsx);



            Messenger.Default.Register<String>(this, "Xfpc_sqyy", ReceiveXfpcSqyy);



            Messenger.Default.Register<String>(this, "Xfpc_ccxf", ReceiveXfpcCcxf);















            Messenger.Default.Register<string[]>(this, MsgTypes.列表信息控制_Callback, res =>



            {



                switch (res[0])



                { 



                    case "GKXX":



                        Model.Zysshtml = res[1];



                        break;



                }



            });



        }

WPF TabControl Page 新增、关闭、传参、刷新