c# - Accessing PhoneTextBox in ListBox -

i want access value phonetextbox named "buttonsearch" placed inside listbox. problem can't invoke code behind. mean can easly this:

string writtentext = buttonsearch.text; 

when phonetextbox not inside listbox.

mainpage.xaml:

<controls:panoramaitem name="panoramasearch">             <listbox itemssource="{binding apisearch}" name="listboxsearch">                 <listbox.itemtemplate>                     <datatemplate>                         <stackpanel orientation="horizontal" x:name="panelsearch">                             <toolkit:phonetextbox x:name="buttonsearch" hint="search" actionicon="images/search.png" height="70" width="350" actionicontapped="searchicontapped" />                             <stackpanel orientation="horizontal">                                 <image height="100" width="100" source="{binding image}" />                                 <stackpanel width="311">                                     <textblock text="{binding title}" textwrapping="wrap" style="{staticresource phonetexttitle3style}" />                                     <textblock text="{binding category}" textwrapping="wrap" style="{staticresource phonetextsmallstyle}" />                                 </stackpanel>                             </stackpanel>                         </stackpanel>                     </datatemplate>                 </listbox.itemtemplate>             </listbox>         </controls:panoramaitem> 

mainpage.xaml.cs:

 private void searchicontapped(object sender, eventargs e) {      //here place want phonetextboxvalue  } 

my problem can access listbox named listboxsearch. can't directly value phonetextbox. there way value?

thanks in advance.

create dependency property in mainpage.xaml.cs, let's call phonetext.

in data template add phonetextbox:

text="{binding phonetext, relativesource={relativesource findancestor, ancestortype=page}, mode=twoway}" 

then in code-behind:

private void searchicontapped(object sender, eventargs e) {     var phonetxt = phonetext; //not necessary, show usage }