DataGrid UWP/WinUI SelectAll function?

Question

How to select all rows in datagrid for uwp/winui? Similar to dataGrid.SelectAl(); from WPF.

I didn't find anything about this in uwp/winUI

Answer 1

You can select all items by pressing the Control key and the A key.

MainWindow.xaml

<StackPanel>
    <Button
        Click="SelectAllButton_Click"
        Content="SelectAll" />
    <controls:DataGrid
        x:Name="DataGridControl"
        ItemsSource="{x:Bind Items, Mode=OneWay}"
        SelectionMode="Extended" />
</StackPanel>

MainWindow.xaml.cs

public sealed partial class MainWindow : Window
{
    public MainWindow()
    {
        this.InitializeComponent();

        Items.Add(new Item() { Id = 0, Title = "A" });
        Items.Add(new Item() { Id = 1, Title = "B" });
        Items.Add(new Item() { Id = 2, Title = "C" });
    }

    public ObservableCollection<Item> Items { get; set; } = new();

    private void SelectAllButton_Click(object sender, RoutedEventArgs e)
    {
        this.DataGridControl.Focus(FocusState.Programmatic);

        var keys = new[]
        {
            new InjectedInputKeyboardInfo()
            {
                VirtualKey = (ushort)(VirtualKey.Control),
                KeyOptions = InjectedInputKeyOptions.None,
            },
            new InjectedInputKeyboardInfo()
            {
                VirtualKey = (ushort)(VirtualKey.A),
                KeyOptions = InjectedInputKeyOptions.None,
            },
        };

        InputInjector inputInjector = InputInjector.TryCreate();

        // Press the keys.
        inputInjector.InjectKeyboardInput(keys);

        foreach (InjectedInputKeyboardInfo key in keys)
        {
            key.KeyOptions = InjectedInputKeyOptions.KeyUp;
        }

        // Release the keys.
        inputInjector.InjectKeyboardInput(keys);
    }
}