Events

Updated on Aug 24, 2026

The events exposed for the Telerik TextArea for Blazor let you react to user actions and input. This article explains the events available in the Telerik TextArea.

• OnChange
• ValueChanged
• OnBlur

OnChange

The OnChange event represents a user action - confirmation of the current value. It fires when the input loses focus.

The OnChange event does not prevent you from using two-way data binding.

Handle OnChange event

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.

ValueChanged

The ValueChanged event fires upon every change (for example, keystroke) in the input. When using the ValueChanged event you can not use two-way data binding, because the @bind-Value internally fires this event.

Handle ValueChanged event

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.

OnBlur

The OnBlur event fires when the component loses focus.

Handle the OnBlur event

Example

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See Also

• TextArea Overview
• ValueChanged and Validation
• Fire OnChange Only Once