WPF DataGrid鼠标滚不动,划不动解决

WPF DataGrid鼠标悬浮时，滚不动,划不动解决

给DataGrid添加事件 PreviewMouseWheel="UIElement_OnPreviewMouseWheel"

<DataGrid
    x:Name="DataGridList56"
    Grid.Column="0"
    Margin="0,5,0,0"
    AutoGenerateColumns="False"
    CanUserAddRows="False"
    CanUserDeleteRows="False"
    ItemsSource="{Binding SymptomQuestionnaires}"
    PreviewMouseWheel="UIElement_OnPreviewMouseWheel"
    SelectedItem="{Binding CurrentSelectedRowData}"
    SelectionUnit="FullRow">

后台代码

        private void UIElement_OnPreviewMouseWheel(object sender, MouseWheelEventArgs e)
        {
            if (sender != null && sender is DataGrid dataGrid)
            {
                var eventArg = new MouseWheelEventArgs(e.MouseDevice, e.Timestamp, e.Delta);
                eventArg.RoutedEvent = MouseWheelEvent;
                eventArg.Source = sender;
                dataGrid.RaiseEvent(eventArg);
            }
        }