xaml - Xamarin C# Double Binding Source -

is possible have 2 sources of binding? element such cellview?

i searched , tried several possibilities had in mind without able want do. seems simple however..

let says have page (i put simple code, bit long, not hard):

mainpage.cs

public partial class courseshistory : contentpage {     // course it's element "data template" listview     private class course     {         public string date { get; set; }         public string destination { get; set; }          private string _price;         public string price {             { return this._price; }             set             {                 this._price = "€" + value;             }         }     }      // fontattribute it's other element not set itemssource, used cell fontfamily ask, fontsize etc      private class fontattributes     {         public string moon_family_alien_bold { get; set; }         ....          public fontattributes()         {             ....         }     }     public fontattributes fontattr;      public courseshistory()     {         fontattr = new fontattributes();         initializecomponent();         initlist();     }      private void initlist()     {         observablecollection<course> courses = new observablecollection<course>();         listviewhistory.itemssource = courses;          courses.add(new course() { date = "1 novembre 1995", destination = "le mans", price = "23.11" });         courses.add(new course() { date = "2 novembre 1995", destination = "le mans", price = "23.11" });         courses.add(new course() { date = "3 novembre 1995", destination = "le mans", price = "23.11" });         courses.add(new course() { date = "4 novembre 1995", destination = "le mans", price = "23.11" });         courses.add(new course() { date = "5 novembre 1995", destination = "le mans", price = "23.11" });         courses.add(new course() { date = "6 novembre 1995", destination = "le mans", price = "23.11" });         courses.add(new course() { date = "7 novembre 1995", destination = "le mans", price = "23.11" });         courses.add(new course() { date = "8 novembre 1995", destination = "le mans", price = "23.11" });         courses.add(new course() { date = "9 novembre 1995", destination = "le mans", price = "23.11" });         courses.add(new course() { date = "10 novembre 1995", destination = "le mans", price = "23.11" });         courses.add(new course() { date = "11 novembre 1995", destination = "le mans", price = "23.11" });         courses.add(new course() { date = "12 novembre 1995", destination = "le mans", price = "23.11" });         courses.add(new course() { date = "13 novembre 1995", destination = "le mans", price = "23.11" });         courses.add(new course() { date = "14 novembre 1995", destination = "le mans", price = "23.11" });         courses.add(new course() { date = "15 novembre 1995", destination = "le mans", price = "23.11" });     } } 

and xaml mainpage.xaml.cs

<?xml version="1.0" encoding="utf-8" ?>   <contentpage xmlns="http://xamarin.com/schemas/2014/forms"          xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"          x:class="pages.courseshistory">     <absolutelayout>        <listview x:name="listviewhistory" backgroundcolor="white" rowheight="50"               absolutelayout.layoutbounds="0.5,0.5,1,1"               absolutelayout.layoutflags="all">         <listview.itemtemplate>           <datatemplate>             <viewcell>                <absolutelayout> 

the list bind observablecollection how can access fontattr not bind?

                <label fontfamily="{binding path=how_can_i_access_fontattr??}"                         text="{binding date}" textcolor="black" fontsize="14" verticaltextalignment="center" horizontaltextalignment="center"                        absolutelayout.layoutbounds="0, 0.5, 0.3, 1"                        absolutelayout.layoutflags="all"/>                 <label text="{binding destination}" textcolor="black" fontsize="14" verticaltextalignment="center" horizontaltextalignment="center"                        absolutelayout.layoutbounds="0.5, 0.5, 0.5, 1"                        absolutelayout.layoutflags="all"/>                 <label text="{binding price}" textcolor="black" fontsize="14" verticaltextalignment="center" horizontaltextalignment="center"                        absolutelayout.layoutbounds="1, 0.5, 0.2, 1"                        absolutelayout.layoutflags="all"/>               </absolutelayout>              </viewcell>           </datatemplate>         </listview.itemtemplate>       </listview>      </absolutelayout>   </contentpage> 

thank read , !

in xaml, should specify string format display double value.

<stacklayout orientation="horizontal">      <label x:name="name_label_meetinglocation1"          text="{binding latitude ,          stringformat='{0:0.0000}'}"/>  </stacklayout>