title: Kendo MVC- how to add additional items to datasource On MultiselectBox
body: <p>I want to add extra items(with Name and ID property) to datasource of MultiselectBox after it is own items loaded.</p>
  
  <p>Here is my MultiselectBox:</p>
  
  <pre><code>@(Html.Kendo().MultiSelect()
     // .Events(e=&gt;
       //   e.Select("Select"))
    .Name("lstStatus")
    .DataTextField("DESCRIPTION")
     .DataValueField("REFERENCEID")
  
    // .AutoBind(false) 
  
     .Placeholder("Select Case Status")
     .Value(GetPreSelectedStatusList()) //Adds initial values
  
     .DataSource(source =&gt;
     {
         source.Read(read =&gt;
         {
             read.Action("GetDefinitionDetails", "Definition", new { definitionCode = "CASE_STATUS", addEmptyRow = false }); 
         })
         .ServerFiltering(true);
  
     }))
  </code></pre>
  
  <p>Js:</p>
  
  <pre><code>var list = $("#lstStatus").data("kendoMultiSelect");
   list.dataSource.add({
       REFERENCEID: 1,
       DESCRIPTION: "SELECT ALL"
   });
  </code></pre>
  
  <p>With this settings all items are loaded to multiselectbox, but when i click to textbox, I cannot see my custom added items(which is "Select All").
  When i set AutoBind of Multiselectbox to false, I can see initial values on combobox but when I click on  multiselect's textarea, I see only "Select ALL" item. Other items cannot be loaded.</p>