windows - Pinch Zoom Becomes Pan Gesture on MapControl -


i developing windows 10 uwp app. app has mapcontrol:

<maps:mapcontrol x:name="map" />

i add multiple instances of usercontrol xaml control usermapicon.xaml:

<usercontrol     x:class="taq.views.usermapicon"     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"     xmlns:local="using:taq.views"     xmlns:d="http://schemas.microsoft.com/expression/blend/2008"     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"     mc:ignorable="d"     d:designheight="20"     d:designwidth="20">     <grid>         <ellipse width="10" height="10" fill="black"></ellipse>     </grid> </usercontrol>

to map c# code:

// ... var umi = new usermapicon(); map.children.add(umi); // ...

several times purposes. so, can imagine there map many circles in it.

the problem that: app runs on touch screen tablet, want zoom map 2 finger pinch. however, if 1 of finger touches usercontrol , finger touches map, pinch-zoom becomes pan gesture. how solve problem?

by experiment, setting usercontrol's ishittestvisible="false" solves problem.

<usercontrol         x:class="taq.views.usermapicon"         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"         xmlns:local="using:taq.views"         xmlns:d="http://schemas.microsoft.com/expression/blend/2008"         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"         mc:ignorable="d"         d:designheight="20"         d:designwidth="20"         ishittestvisible="false">         <grid>             <ellipse width="10" height="10" fill="black"></ellipse>         </grid> </usercontrol>

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