wpf - wp8 Binding CheckBox to CustomMessageBox via DataTemplate -

i make own control. inside want define data template use in custom message box. in code open dialog can't set start value check box inside it.

please me - how correctly bind cbvoiceattchecked variable custommessagebox via datatemplate named voicetemplate

xaml:

<usercontrol x:class="myproj.rdpcontrol" ... >  <usercontrol.resources>     <datatemplate x:key="voicetemplate" >         <stackpanel margin="32,0,0,0">             <checkbox x:name="cbvoiceatt" content="..." ischecked="{binding cbvoiceattchecked}"/>             ... /*other checkboxes*/         </stackpanel>     </datatemplate> </usercontrol.resources>  <grid x:name="layoutroot">     ... here main control - works </grid> 

in code

public partial class rdpcontrol : usercontrol {     public rdpcontrol()     {         initializecomponent();         //this.datacontext = this;     }      public bool cbvoiceattchecked { get; set; }  ....      private void voicebutton_tap(object sender, system.windows.input.gestureeventargs e)     {         cbvoiceattchecked = true; // value binding temlate!!!         custommessagebox messagebox = new custommessagebox()         {             caption = "...",             message = "...",             contenttemplate = (datatemplate)(this.resources["voicetemplate"]), // use template xaml             datacontext = this, // want use cbvoiceattchecked variable bind dialog             leftbuttoncontent = "yes",             rightbuttoncontent = "no"         };         ...         messagebox.show();      } 

you need either change cbvoiceattchecked property dependencyproperty, or implement inotifypropertychanged interface in rdpcontrol class.

you can find out more inotifypropertychanged interface in inotifypropertychanged interface on msdn , dependencypropertys in dependencyproperty class , dependency properties overview pages on msdn.

of course, depends on doing contenttemplate object inside rdpcontrol class. did not show that, cannot confirm making above change fix problem.