xaml - Xamarin Forms - My ContentPresenter won't show its Content -


i'm still getting used xamarin forms, have following control called popupframe:

popupframe.cs

[xamlcompilation(xamlcompilationoptions.compile)] public partial class popupframe : contentview {     public static readonly bindableproperty popupcontentproperty =         bindableproperty.create(nameof(popupcontent), typeof(view), typeof(popupframe));      public view popupcontent     {         { return (view)getvalue(popupcontentproperty); }         set { setvalue(popupcontentproperty, value); }     }      public popupframe()     {         initializecomponent();     } }

popupframe.xaml

<?xml version="1.0" encoding="utf-8"?> <contentview xmlns="http://xamarin.com/schemas/2014/forms"              xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"              x:class="testapp.core.controls.popupframe">     <frame>         <stacklayout>             <label text="--- test title ---" />              <contentpresenter content="{templatebinding popupcontent}" />         </stacklayout>     </frame> </contentview>

in view:

<popctl:popupframe horizontaloptions="center"                    verticaloptions="center">     <popctl:popupframe.popupcontent>         <listview x:name="listusers">             <listview.itemtemplate>                 <datatemplate>                     <viewcell>                         <viewcell.view>                             <label text="{binding name}"                                    horizontaloptions="centerandexpand"                                    verticaloptions="center" />                         </viewcell.view>                     </viewcell>                 </datatemplate>             </listview.itemtemplate>         </listview>         </popctl:popupframe.popupcontent> </popctl:popupframe>

so what's happening when contentview control shows, label (with text -- test title -- displayed, not listview).

i've tried replacing contentpreseter contentview, same result: listview doesn't not show. , made sure data in fact exist in itemssource of listview (set in code-behind).

is contentview setup wrong??

templatebinding can used bind inside control-template. in order binding work - can use referenceextension refer parent control.

for ex, update binding following: 

<contentview xmlns="http://xamarin.com/schemas/2014/forms"              xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"              x:class="testapp.core.controls.popupframe"              x:name="_parent">     <frame>         <stacklayout>             <label text="--- test title ---" />              <contentpresenter                   content="{binding path=popupcontent, source={x:reference _parent}}" />         </stacklayout>     </frame> </contentview>

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