wpf - Binding to 2 Datasources -

i want bind datatemplate 2 datasources, 1 datasource define in listbox , other determine how many listboxes there , items in listbox selected\checked.

i have following xaml

<window x:class="wpfapplication1.mainwindow"     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"     title="mainwindow" height="350" width="525"> <window.resources>     <datatemplate x:key="tokenlisttemplate">         <stackpanel orientation="horizontal">             <checkbox x:name="chktoken" ischecked="{binding path=isselected, mode=twoway}">                 <textblock text="{binding path=text}" />             </checkbox>         </stackpanel>     </datatemplate>      <datatemplate x:key="itemtemplate">         <border borderthickness="1">             <stackpanel margin="3">                 <textblock text="{binding path=header}"/>                 <listbox itemtemplate="{staticresource tokenlisttemplate}"                           itemssource="{binding path=tokens}" >                 </listbox>             </stackpanel>         </border>     </datatemplate> </window.resources>  <grid>     <listbox itemtemplate="{staticresource itemtemplate}"               itemssource="{binding}">         <listbox.itemspanel>             <itemspaneltemplate>                 <wrappanel/>             </itemspaneltemplate>         </listbox.itemspanel>     </listbox> </grid> 

, codebehind

public partial class mainwindow : window {      public mainwindow()     {         initializecomponent();          observablecollection<dataentity> _actualobjects;          list<token> tokens1 = new list<token>()                                              {                                                  new token("1"),                                                                                                      new token("2"),                                                  new token("3"),                                                  new token("4")                                              };          list<token> tokens2 = new list<token>()                                              {                                                  new token("11"),                                                                                                      new token("21"),                                                  new token("31")                                             };          _actualobjects = new observablecollection<dataentity>()             {                 new dataentity(tokens1, "a", "1,2,3", 1),                   new dataentity(tokens1, "b", "2,3", 1),                 new dataentity(tokens2, "c", "21,31", 2)             };           datacontext = _actualobjects;     }      class dataentity     {         public dataentity(list<token> tokens, string header, string tokenstring, int entitytypeid)         {             tokens = tokens;             header = header;             tokenstring = tokenstring;             entitytypeid = entitytypeid;         }         public list<token> tokens { get; set; }         public string header { get; set; }         public string tokenstring { get; set; }         public int entitytypeid { get; set; }      }      public class token     {         public bool isselected { get; set; }         public string text { get; set; }         public token(string text)         {             this.isselected = false;             this.text = text;         }     } } 

it produces

i don't want inject token1 or token2 list dataentity object in other words want dataentity constructor

public dataentity(string header, string tokenstring, int entitytypeid) 

listbox datatemplate should select

• tokens1 list datasource lisboxitems if dataentity.entitytypeid = 1
• tokens2 list datasource lisboxitemsif dataentity.entitytypeid = 2

also tokenstring in dataentity should bound items in listbox i.e. if listbox shows 1 2 3 4 , dataentity listbox has tokenstring value set "1,2,3" 1 2 3 should checked in listbox

i recommend create viewmodel layer between model , view. in viewmodel can arrange data fit used controls without changing model.

so viewmodel example split tokenstring of dataentity list of tokens.

just google mvvm (model-view-viewmodel) examples , furter explanations or here on (like mvvm: tutorial start finish?).