title: Enable Disable Controls in kendo ui grid popup form
body: <p>I use a grid with popup editor for insert and edit grid rows.
  in template I use radio button group </p>
  
  
      
      
      
  
  
  <p>and the properties defined in viewmodel
  var viewModel = kendo.observable({
              ChequeNaghdiChange:false,
               ChequeReturnedChange:false
  ........</p>
  
  <p>the NRDisabled  is used for disable and enable control and its work perfectly out of popup by simple set true or false property 
  viewModel.set("ChequeNaghdiChange",false);
   kendo.data.binders.NRDisabled = kendo.data.Binder.extend({</p>
  
  <pre><code>    refresh: function () {
          if (this.bindings.NRDisabled.get()) {
              this.element.setAttribute("disabled", "disabled");
          } else {
              this.element.removeAttribute("disabled");
          }
      }
  });
  </code></pre>
  
  <p>It's seems property binding have some problem in kendo.
  Best Regards
  Amir </p>