xaml - Create a page indicator in wp8 -

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hi trying implement slider shown in figure below. easy in web using jquery. problem have implement in wp8. idea how make circular rings marked , on swipe right ring should marked. code snippet if have great. enter image description here

you may try way. sample.

mainpage.xaml

<grid>     <hub name="hub" sectionsinviewchanged="hub_sectionsinviewchanged" >         <hubsection tag="0" background="red" />         <hubsection tag="1" background="blue" />         <hubsection tag="2" background="green" />         <hubsection tag="3" background="aqua" />     </hub>      <grid width="80" height="30" verticalalignment="bottom" margin="20,20,20,20">         <grid.columndefinitions>             <columndefinition width="20" />             <columndefinition width="20" />             <columndefinition width="20" />             <columndefinition width="20" />         </grid.columndefinitions>         <ellipse name="circle1" margin="5,0,5,0" fill="white" width="10" height="10" grid.column="0" opacity="1"/>         <ellipse name="circle2" margin="5,0,5,0" fill="white" width="10" height="10" grid.column="1" opacity="0.5"/>         <ellipse name="circle3" margin="5,0,5,0" fill="white" width="10" height="10" grid.column="2" opacity="0.5"/>         <ellipse name="circle4" margin="5,0,5,0" fill="white" width="10" height="10" grid.column="3" opacity="0.5"/>     </grid> </grid>

and function event sectionsinviewchanged in mainpage.xaml.cs

private void hub_sectionsinviewchanged(object sender, sectionsinviewchangedeventargs e) {         circle1.opacity = 0.5;         circle2.opacity = 0.5;         circle3.opacity = 0.5;         circle4.opacity = 0.5;         var tag = hub.sectionsinview[0].tag.tostring();         switch(tag)         {             case "0":                 circle1.opacity = 1;                 break;             case "1":                 circle2.opacity = 1;                 break;             case "2":                 circle3.opacity = 1;                 break;             case "3":                 circle4.opacity = 1;                 break;             default :                 circle1.opacity = 1;                 break;         } }

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