Binding

When using the RadioGroup component, you can bind the radio button items by using the Items() method or the BindTo() method.

Items method

The example below demonstrates how to use the Items() method to configure the radio buttons in the RadioGroup widget.

    @(Html.Kendo().RadioGroup()
        .Name("radiogroup")
        .Items(i =>
        {
            i.Add().Label("Phone (SMS)").Value("1");
            i.Add().Label("E-mail").Value("2");
            i.Add().Label("None").Value("3");
        })
        .Value("1")
    )

     <kendo-radiogroup name="radiogroup" 
                       radio-name="radiogroup" 
                       value="1">
          <kendo-radiogroup-items>
              <kendo-radiogroup-item label="Phone (SMS)" value="1"></kendo-radiogroup-item>
              <kendo-radiogroup-item label="E-mail" value="2"></kendo-radiogroup-item>
              <kendo-radiogroup-item label="None" value="3"></kendo-radiogroup-item>
          </kendo-radiogroup-items>
     </kendo-radiogroup>

BindTo method

You can configure the items in the RadioGroup widget by using the BindTo method.

1. Pass the data to the view through the view model.

   public IActionResult Index()
   {
       var itemsList = new List<InputGroupItemModel>()
       {
           new InputGroupItemModel()
           {
               Label = "Yes",
               Value = "one"
           },
            new InputGroupItemModel()
           {
               Label = "No",
               Value = "two"                    
           },
             new InputGroupItemModel()
           {
               Label = "N/A",
               Value = "three"
           }
       };
   
       return View(new RadioGroupViewModel() { Items = itemsList });
   }
   
   public class RadioGroupViewModel
   {
       public List<InputGroupItemModel> Items { get; set; }
   }
   
   public class InputGroupItemModel : IInputGroupItem
   {
       public IDictionary<string, object> HtmlAttributes { get; set; }
   
       public string CssClass { get; set; }
   
       public bool? Enabled { get; set; }
   
       public bool? Encoded { get; set; }
   
       public string Label { get; set; }
   
       public string Value { get; set; }
   }   
   

2. Add the RadioGroup to the view and bind it to a property of the view model.

       @model MvcApplication1.Models.RadioGroupViewModel
   
       @(Html.Kendo().RadioGroup()
           .Name("radiogroup")   
           .BindTo(Model.Items)
       )
   

       @model MvcApplication1.Models.RadioGroupViewModel
   
       <kendo-radiogroup name="radiogroup"
                         radio-name="radiogroup"                      
                         bind-to="Model.Items">
       </kendo-radiogroup>
   

Model Binding

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

The RadioGroup component is not accustomed to complex object-binding scenarios.

Model Binding with Local Data

    @model RadioGroupModel

    @(Html.Kendo().RadioGroupFor(model => model.RadioGroupGroupValue)
        .Name("radiogroup")
        .Items(items =>
        {
            items.Add().Label("Phone (SMS)").Value("1");
            items.Add().Label("E-mail").Value("2");
            items.Add().Label("None").Value("3");
        })
    )

    @model RadioGroupModel

    <kendo-radiogroup for="RadioGroupGroupValue">
        <kendo-radiogroup-items>
            <kendo-radiogroup-item value="1" label="Phone (SMS)"></kendo-radiogroup-item>
            <kendo-radiogroup-item value="2" label="E-mail"></kendo-radiogroup-item>
            <kendo-radiogroup-item value="3" label="None"></kendo-radiogroup-item>
        </kendo-radiogroup-items>
    </kendo-radiogroup>

    public IActionResult Index()
    {
        var model = new RadioGroupModel
        {
            RadioGroupGroupValue = new List<string>() { "1" }
        };  

        return View(model);
    }

    public class RadioGroupModel
    {
        public string[] RadioGroupGroupValue { get; set; }
    }

Model Binding with Remote Data

    @model RadioGroupModel

    @(Html.Kendo().RadioGroupFor(model => model.RadioGroupGroupValue)
         .HtmlAttributes(new { style = "height: auto;" })
         .Layout(radiogroupLayout.Vertical)
         .BindTo((List<IInputGroupItem>)ViewData["radiogroupItems"])
    )

    @model RadioGroupModel

    <kendo-radiogroup  for="RadioGroupGroupValue"
                       value="Model.RadioGroupGroupValue"
                       bind-to='(List<IInputGroupItem>)ViewData["radiogroupItems"]'>
    </kendo-radiogroup>

        private List<InputGroupItemModel> GetRadioGroupItems()
         => new List<InputGroupItemModel>()
            {
                new InputGroupItemModel()
                {
                    Label = "Yes",
                    Value = "one"
                },
                 new InputGroupItemModel()
                {
                    Label = "No",
                    Value = "two"
                },
                  new InputGroupItemModel()
                {
                    Label = "N/A",
                    Value = "three"
                }
            };

        public IActionResult Index()
        {
            var model = new RadioGroupModel
            {
                RadioGroupGroupValue = new List<string>() { "one" }
            };

            ViewData["RadioGroupItems"] = GetRadioGroupItems();

            return View(model);
        }

    public class RadioGroupModel
    {
        public string[] RadioGroupGroupValue { get; set; }
    }

See Also

• Server-Side API