c# - Hot to get content from another page in uwp after a few seconds -

i have page1.xaml

<grid background="{themeresource applicationpagebackgroundthemebrush}">     <stackpanel horizontalalignment="left" height="720" verticalalignment="top" width="575">          <textblock foreground="white" textwrapping="wrap" margin="28,20,31,0" fontsize="14" height="145">             <textblock.transitions>                 <transitioncollection>                     <entrancethemetransition fromhorizontaloffset="400"/>                 </transitioncollection>             </textblock.transitions>             <run text="text 1"/>         </textblock>     </stackpanel> </grid> 

and page2.xaml

 <grid background="{themeresource applicationpagebackgroundthemebrush}">     <textblock foreground="white selectionchanged="textblock_selectionchanged"  name="textblockone">         <textblock.transitions>             <transitioncollection>                 <entrancethemetransition fromhorizontaloffset="400"/>             </transitioncollection>         </textblock.transitions>         <run text="text 2"/>     </textblock> </grid> 

what want replace "text 1" in page 1 after 5 seconds "text 2" page 2.

i tried in page2.xaml.cs:

private void textblock_selectionchanged(object sender, routedeventargs e)     {         var test = textblockone.text;         frame.navigate(typeof(page1), test);     } 

how solve problem?

you can use mainpage navigate it.

first, mainpage have frame can navigate apage .

then,mainpage start timer can wait 5 second call mainpage navigate bpage.

the code in xaml ,i write in mainpage

<frame x:name="frame"/> 

the code in xaml.cs

    public mainpage()     {         this.initializecomponent();         frame.navigate(typeof(apage));         dispatchertimer t = new dispatchertimer();         t.interval = new timespan(1000);         t.tick += (s, e) =>         {             navigatepageb();         };         t.start();     }      private async void navigatepageb()     {         await coreapplication.mainview.corewindow.dispatcher.runasync(coredispatcherpriority.normal,          () =>          {              frame.navigate(typeof(pageb));          });     }