public void Scroll_on_wheel()
{
var items = Enumerable.Range(1, 100).Select(i => Tuple.Create(i.ToString())).ToList();
WpfTestHelper.WithWindow2(async w => {
var grid = new DataGrid2();
grid.AutoGenerateColumns = false;
grid.Columns.Add(new DataGridTextColumn {
Binding = new Binding("Item1")
});
w.Content = grid;
grid.RaiseEvent(new MouseWheelEventArgs(System.Windows.Input.Mouse.PrimaryDevice,
0,
-System.Windows.Input.Mouse.MouseWheelDeltaForOneLine)
{
RoutedEvent = UIElement.PreviewMouseWheelEvent,
Source = grid,
});
grid.ItemsSource = items;
await grid.WaitIdle();
grid.CurrentItem = items[0];
grid.CurrentColumn = grid.Columns[0];
grid.RaiseEvent(new MouseWheelEventArgs(System.Windows.Input.Mouse.PrimaryDevice,
0,
-System.Windows.Input.Mouse.MouseWheelDeltaForOneLine)
{
RoutedEvent = UIElement.PreviewMouseWheelEvent,
Source = grid,
});
Assert.AreEqual("2", ((Tuple <string>)grid.CurrentItem).Item1);
await w.WaitIdle();
});
}
