在WPF DataGrid中使用Enter键作为选项卡

<DataGrid x:Name="DataGrid"
          SelectionMode="Extended"
          SelectionUnit="FullRow"
          MouseLeftButtonDown="OnMouseLeftButtonDown"
          KeyDown="DataGrid_KeyDown">
    <DataGrid.Columns>
        <DataGridTextColumn Header="Name"
                            Binding="{Binding Name}"
                            Width="100" />
        <DataGridTextColumn Header="Age"
                            Binding="{Binding Age}"
                            Width="80" />
    </DataGrid.Columns>
</DataGrid>

<TabItem x:Name="TabItem"
          Header="Tab 1">
    <Grid>
        <TextBlock Text="This is the first tab." />
    </Grid>
</TabItem>
<TabItem x:Name="TabItem2"
          Header="Tab 2">
    <Grid>
        <TextBlock Text="This is the second tab." />
    </Grid>
</TabItem>

private void DataGrid_KeyDown(object sender, KeyEventArgs e)
{
    if (e.Key == Key.Enter)
    {
        var currentItem = ((DataRowView)DataGrid.SelectedItem).Row;
        var dataSource = new ObservableCollection<Person>()
        {
            new Person { Name = "John", Age = 30 },
            new Person { Name = "Jane", Age = 25 }
        };
        var dialog = new MessageDialog("Choose a person:", "Choose a person:", MessageDialogStyle.AffirmativeAndNegative);
        dialog.DataContext = currentItem;
        var result = dialog.ShowAsync();
        if (result == MessageDialogResult.Affirmative)
        {
            var selectedPerson = (Person)dialog.DataContext;
            var index = dataSource.IndexOf(selectedPerson);
            DataGrid.SelectedIndex = index;
        }
    }
}