DxListBox<TData, TValue>.DeselectAllAsync() Method

Deselects all available items in the List Box.

Namespace: DevExpress.Blazor

Assembly: DevExpress.Blazor.v25.1.dll

NuGet Package: DevExpress.Blazor

Declaration

public Task DeselectAllAsync()

Returns

Type	Description
Task	The task that is completed when all available items are deselected.

Remarks

Call the DeselectAllAsync method to clear all selectable List Box items. This method does not affect items hidden by a filter or disabled items.

To select all items, call the SelectAllAsync() method.

To access selected items, implement two-way binding for the Values property or handle the SelectedDataItemsChanged event.

<DxButton Click="SelectAll">Select All Items</DxButton>
<DxButton Click="DeselectAll">Deselect All Items</DxButton>

<DxListBox Data="@Staff.DataSource"
           @ref=MyListBox
           TextFieldName="@nameof(Person.Text)"
           SelectionMode="ListBoxSelectionMode.Multiple"
           ShowCheckboxes="true"
           ShowSelectAllCheckbox="true"
           @bind-Values="@Values">
</DxListBox>

@code {
    IListBox<Person,Person> MyListBox { get; set; }
    IEnumerable<Person> Values { get; set; }

    async Task SelectAll(MouseEventArgs args) {
        await MyListBox.SelectAllAsync();
    }
    async Task DeselectAll(MouseEventArgs args) {
        await MyListBox.DeselectAllAsync();
    }
}

Implements

DeselectAllAsync()