Events

Updated on Sep 10, 2026

This article showcases the available events in the Telerik Switch component:

• ValueChanged
• OnChange
• OnBlur

ValueChanged

The ValueChanged event fires every time the Value parameter changes.

Handle ValueChanged

Example

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The event is an EventCallback. It can be synchronous and return void, or asynchronous and return async Task. Do not use async void.

The lambda expression in the handler is required by the framework: https://github.com/aspnet/AspNetCore/issues/12226.

OnChange

The OnChange event fires every time the Value parameter changes. The key difference between ValueChanged is that OnChange does not prevent two-way data binding (using the @bind-Value syntax).

Handle OnChange

Example

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OnBlur

The OnBlur event fires when the component loses focus.

Handle the OnBlur event

Example

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