DxTextBox.TextChanged Event

Fires when a Text value changes.

Namespace: DevExpress.Blazor

Assembly: DevExpress.Blazor.v23.2.dll

NuGet Package: DevExpress.Blazor

Declaration

[Parameter]
public EventCallback<string> TextChanged { get; set; }

Parameters

Type	Description
String	A new Text value.

Remarks

Use the TextChanged event to handle a text change. The code below disables the Update Text button when a user removes the text and the Text Box loses focus:

<DxTextBox Text="Some text" TextChanged="@((newValue) => OnTextChanged(newValue))" />
<DxButton Enabled="@IsEnabled">Update Text</DxButton>

@code {
    bool IsEnabled = false;

    void OnTextChanged(string newValue) {
        if (string.IsNullOrEmpty(newValue)) {
            IsEnabled = false;
        } else IsEnabled = true;
    }
}

You can also use the BindValueMode property to specify how and when to update the Text Box editor’s text.

Watch Video: Blazor Text Box: Get Started