Model Binding

You can implement model binding both with local data and remote data, and in combination with virtualization.

Local Data

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

  1. Pass the data to the view through ViewData.

    Example
    public ActionResult 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 DropDownList to the view and bind it to the data that is saved in the ViewData.

    Example
    @model MvcApplication1.Models.ProductViewModel
    
    @(Html.Kendo().DropDownListFor(m => m.ProductID)
        .DataValueField("ProductID")
        .DataTextField("ProductName")
        .BindTo((System.Collections.IEnumerable)ViewData["products"])
    )
    

Remote Data

You can configure the DropDownList 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.

    Example
    public ActionResult 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 DropDownList to the view and configure its DataSource to use remote data.

    Example
    @model MvcApplication1.Models.ProductViewModel
    
    
    @(Html.Kendo().DropDownListFor(m => m.ProductID)
        .Filter("contains")
        .DataTextField("ProductName")
        .DataValueField("ProductID")
        .OptionLabel("Select product...")
        .DataSource(source =>
        {
            source.Read(read =>
            {
                read.Action("GetProductsAjax", "Home");
            })
            .ServerFiltering(false);
        })
    )
    
In this article
Not finding the help you need? Improve this article