c# - Bind outside ItemsSource of DataTemplate, Windows phone -

in windows phone 8 have longlistselector , itemtemplate specified that. in code behind set itemssource longlistselector. in item template want bind value outside itemssource. how that?

<datatemplate x:key="template">   <textblock text="{binding name}"/>   <textblock text="{binding country}"/> </datatemplate> ... <phone:longlistselector x:name="list" itemtemplate="{staticresource template}"> </phone:longlistselector> 

c#

string country = "japan"; this.list.itemssource = items; 

so how bind country outside itemssource? country accessor in "code behind" phoneapplicationpage.

it best make models inside template have bind item model.

anyway possible bind outside of itemsource:

xaml:

<phone:phoneapplicationpage.resources>      <datatemplate x:key="itemtemplate">         <stackpanel>             <textblock text="{binding name}"/>              <!-- binds layoutroot's datacontext, can setted "code behind" -->             <textblock text="{binding datacontext.outside, elementname=layoutroot}"/>         </stackpanel>     </datatemplate> </phone:phoneapplicationpage.resources>  <!--layoutroot root grid page content placed--> <grid x:name="layoutroot">     <phone:longlistselector itemssource="{binding items}"                             isgroupingenabled="false"                             itemtemplate="{staticresource itemtemplate}">      </phone:longlistselector> </grid> 

in cs have of course properties:

public observablecollection<model> items{get; set;} public string outside { get; set; } 

also layoutroot's datacontext should setted somewhere in cs:

layoutroot.datacontext = this;