title: kendo ui update grid with dropdownlist
body: <p>I've got a problem with updating kendo ui grid.<br/>
  I create grid like this one:
  <a href="http://demos.kendoui.com/web/grid/editing-custom.html" rel="nofollow noreferrer">http://demos.kendoui.com/web/grid/editing-custom.html</a>,
  but also I've add update ability.</p>
  
  <p>My problem is in next.</p>
  
  <p>After updating grid, update request goes good (POST url 200 OK), but after it I get an error in browsers console: </p>
  
  <pre><code>TypeError: Distribution is undefined.
  </code></pre>
  
  <p>Distribution is type of data in drop down list.</p>
  
  <p>Here is my code:</p>
  
  <pre><code>dataSource:
  ...
  update: {    
      url: "/Modeling/EditCurrentStates",
      type: "POST"
  }
  ...
  schema: {
      model: {
          id: "StateNumber",
          fields: {
              ...
              Distribution: { defaultValue: { Id: 1, Name: "Exponential"}
              ...
  
  columns: [
      ...
      { 
          field: "Distribution", 
          title: "Distribution", 
          editor: distributionDropDownEditor, 
          template: "#=Distribution.Name#" 
      },
  
      function distributionDropDownEditor(container, options) {
          $('&lt;input data-text-field="Name" data-value-field="Id" data-bind="value:' + options.field + '"/&gt;')
              .appendTo(container)
              .kendoDropDownList({
                  autoBind: false,
                  dataSource: {
                      type: "json",
                      transport: {
                          read: "/Modeling/GetDistributions"
                      }
                  }
              });
      }
  </code></pre>