Model Binding

You can implement model binding in the ComboBox with both local data and remote data.

Local Data

Local data is the data that is available on the client when the ComboBox is initialized.

1. Pass the data to the view through ViewData.

   public IActionResult Index()
   {
       ViewData["products"] = GetProducts();
   
       return View(new ProductViewModel
       {
           ProductID = 4,
           ProductName = "ProductName4"
       });
   }
   
   private static IEnumerable<ProductViewModel> GetProducts()
   {
       var products = Enumerable.Range(0, 2000).Select(i => new ProductViewModel
       {
           ProductID = i,
           ProductName = "ProductName" + i
       });
   
       return products;
   }
   

2. Add the ComboBox to the view and bind it to the data that is saved in the ViewData.

    @model MvcApplication1.Models.ProductViewModel

    @(Html.Kendo().ComboBoxFor(m => m.ProductID)
        .DataValueField("ProductID")
        .DataTextField("ProductName")
        .BindTo((System.Collections.IEnumerable)ViewData["products"])
    )

Remote Data

You can configure the ComboBox to get its data from a remote source by making an AJAX request.

1. Create an action that returns the data as a JSON result.

   public IActionResult Index()
   {
       return View(new ProductViewModel
       {
           ProductID = 4,
           ProductName = "ProductName4"
       });
   }
   
   public JsonResult GetProductsAjax()
   {
       var products = Enumerable.Range(0, 500).Select(i => new ProductViewModel
       {
           ProductID = i,
           ProductName = "ProductName" + i
       });
   
       return Json(products, JsonRequestBehavior.AllowGet);
   }
   

2. Add the ComboBox to the view and configure its DataSource to use remote data.

    @model MvcApplication1.Models.ProductViewModel


    @(Html.Kendo().ComboBoxFor(m => m.ProductID)
        .Filter("contains")
        .DataTextField("ProductName")
        .DataValueField("ProductID")
        .Placeholder("Select product...")
        .DataSource(source =>
        {
            source.Read(read =>
            {
                read.Action("GetProductsAjax", "Home");
            })
            .ServerFiltering(false);
        })
    )

See Also

• Server-Side API