c# - ControlTemplate with multiple content presenters. How to bind the Content of a ContentPresenter to the value of a DataTemplate in Xamarin Forms -


i have custom control xamarin forms looks one:

public class cardview : frame {     public static readonly bindableproperty headerdatatemplateproperty = bindableproperty.create("headerdatatemplate", typeof(datatemplate), typeof(headercardview), null, bindingmode.twoway);     public static readonly bindableproperty bodydatatemplateproperty = bindableproperty.create("bodydatatemplate", typeof(datatemplate), typeof(headercardview));      public datatemplate headerdatatemplate     {         => (datatemplate)getvalue(headerdatatemplateproperty);         set => setvalue(headerdatatemplateproperty, value);     }      public datatemplate bodydatatemplate     {         => (datatemplate)getvalue(bodydatatemplateproperty);         set => setvalue(bodydatatemplateproperty, value);     }      public cardview()     {         if (device.runtimeplatform.equals("ios"))         {             hasshadow = false;             outlinecolor = color.transparent;             backgroundcolor = color.transparent;         }     } }

the idea create "card" control can define 2 datatemplates heading , body.

so define controltemplate use 2 content presenters:

<controltemplate x:key="headercardcontroltemplate">     <stacklayout>         <contentview padding="5" backgroundcolor="#a6192e">             <contentpresenter content="{templatebinding parent.headerdatatemplate, mode=twoway}"></contentpresenter>         </contentview>         <contentview>             <contentpresenter content="{templatebinding parent.bodydatatemplate}"></contentpresenter>         </contentview>      </stacklayout> </controltemplate>

and use this:

<controls:headercardview controltemplate="{staticresource headercardcontroltemplate}">                                             <controls:headercardview.headerdatatemplate>         <datatemplate>             <grid>                 <grid.columndefinitions>                     <columndefinition></columndefinition>                     <columndefinition></columndefinition>                 </grid.columndefinitions>                 <label fontattributes="bold" text="{binding value}" grid.row="0" grid.column="0"></label>                 <label fontattributes="bold, italic" text="{binding type}" horizontaloptions="end" grid.row="0" grid.column="1"></label>             </grid>         </datatemplate>                                         </controls:headercardview.headerdatatemplate> </controls:headercardview>

however contentpresenter not showing headerdatatemplate suppose grid.

any ideas of i'm missing or doing wrong?


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