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SwitchFor and Model Binding

This section demonstrates the Strongly typed extension support in Switch. The view that can bind with any model is called as strongly typed view. You can bind any class as model to view. You can access model properties on that view. You can use data associated with model to render the component.

In this sample, first check the option and click the submit button to post the selected value in the switch. When value is not checked, validation error message will be shown below the Switch.

@using Syncfusion.EJ2.Blazor.Buttons
@using System.ComponentModel.DataAnnotations

<EditForm Model="Annotate">
    <div class="form-group">
        <EjsSwitch @bind-Checked="@Annotate.Check">I agree to receive newsletter</EjsSwitch>
        <ValidationMessage For="@(() => Annotate.Check)" />
    <EjsButton HtmlAttributes="@Submit" Content="Submit" IsPrimary="true"></EjsButton>

@code {

    public Annotation Annotate = new Annotation();

    public class Annotation
        [Range(typeof(bool), "true", "true", ErrorMessage = "You need to agree to receive newsletter")]
        public bool Check { get; set; }
    public Dictionary<string, object> Submit = new Dictionary<string, object>()
        { "type", "submit"}

Output be like

Switch Sample