c# - Xamarin.Forms.ListView Item tapped with parameter -

i have simple xamarin.forms.contentpage displays menu items in listview:

<contentpage x:class="mob.views.public.menupage" ... >   <scrollview>         <listview itemssource="{binding menuitems}" itemtapped="{binding onmenuitemtapped}">             <listview.itemtemplate>                 <datatemplate>                     <textcell text="{binding key}" />                     <!-- how pass "{binding value}" onmenuitemtapped? -->                 </datatemplate>             </listview.itemtemplate>         </listview>   </scrollview> </contentpage> 

code behind:

public class menupage : contentpage {     public menupage()     {         initializecomponent();         bindingcontext = new menuviewmodel();      }     private async void onmenuitemtapped(object sender, itemtappedeventargs e)     {         await (this.bindingcontext menuviewmodel).onmenuitemtappedasync(/* must pass value here*/);     } } 

as can see, itemssource bound menuitems property of viewmodel. property of type dictionnary<string, string>. key used display text of items while value should passed parameter onmenuitemtapped event.

class menuviewmodel : viewmodelbase {     ...     public idictionary<string, string> menuitems { { return _menuitems; } set { setproperty(ref _menuitems, value); } }     // public icommand onmenuitemtappedcommand { get; set; }     public menuviewmodel()     {         menuitems = new dictionary<string, string>();         menuitems.add("xxx", "pagex");         menuitems.add("yyy", "pagey");         menuitems.add("zzz", "pagez");         // ...         // would've prefere bind item tap using command can't figure out how         // onmenuitemtappedcommand = new command<string>(onmenuitemtappedasync);     }      public async task onmenuitemtappedasync(string targetpage)     {         // await navigation.pushmodalasync(...);         // --> depending on targetpage     } } 

my goal navigate right page depending on value passed onmenuitemtappedasync.

note, trying "pure" mvvm here. meaning know should not use events , leave code behind empty. can't figure out how use commands in context.

any idea/advice how achieve this?

add tapgesture viewcell content , bind command it. ex:

<tapgesturerecognizer command="{binding onmenuitemtappedcommand}" commandparameter="{binding .}" /> 

in case can bind command directly textcell.

<textcell command="{binding onmenuitemtappedcommand}" commandparameter="{binding .}">