DxListBox<TData, TValue>.BeginUpdate() Method
Suspends List Box updates caused by parameter changes and method calls until the EndUpdate() method is called.
Namespace: DevExpress.Blazor
Assembly: DevExpress.Blazor.v24.1.dll
NuGet Package: DevExpress.Blazor
Declaration
public void BeginUpdate()
Remarks
You can use BeginUpdate()
and EndUpdate() methods to change values of the List Box parameters outside the component markup.
The following code snippet changes the ReadOnly parameter value.
<DxListBox Data="forecasts"
TextFieldName="@nameof(WeatherForecast.Summary)"
@ref="component"
@bind-Values="values"/>
<br/>
<DxButton Text="MakeReadOnly" Click="@MakeReadOnly"></DxButton>
@code {
private IListBox<WeatherForecast, WeatherForecast> component;
private IEnumerable<WeatherForecast> forecasts;
private IEnumerable<WeatherForecast> values;
protected override async Task OnInitializedAsync() {
forecasts = await ForecastService.GetForecastAsync(DateOnly.FromDateTime(DateTime.Now));
}
void MakeReadOnly() {
component.BeginUpdate();
component.ReadOnly = true;
component.EndUpdate();
}
}
Implements
See Also