Binding property from control inside NodeTemplate with property from the data model ?

Hello.

<NodeTemplate>   @{     <div style="float:left">     <img class="eimage" src="@((@context as TreeProxyDataModel).visibilityIndicatorPath)" />     <div class="ename">@((@context as TreeProxyDataModel).Caption)</div>     </div>   }  </NodeTemplate>

treeData.Add(new TreeProxyDataModel          {              id = 1,              Caption = "Steven Buchanan",              HasChild = true,              Expanded = true,              vehivleIcon = "10",              Hint = "CEO",              visibilityIndicatorPath = "/images/Employees/10.png"          });

Thank You very much for this absolutely fast answer dear support, anyway this is not what is the case, since the example will not bind, but assign only once the values, and after - the data model will not affect anymore the controls which is the binding kind i am looking for.

for instance add a simple button inside the app:

public void btnClick()      {          foreach( var r in DataSource )          {              r.visibilityIndicatorPath = "/images/anne.png";          }          treeData = DataSource;          tree.Refresh();      }

Oh gods! THANK YOU dear support!