Silverlight Datagrid:高亮显示整个列?

这是行为的开始,应该给你指出正确的方向

    public class DataGridHighlightBehavior : Behavior<DataGrid>
{
    protected override void OnAttached()
    {
        base.OnAttached();

        AssociatedObject.CurrentCellChanged += AssociatedObject_CurrentCellChanged;
    }

    void AssociatedObject_CurrentCellChanged(object sender, EventArgs e)
    {
        foreach (object i in AssociatedObject.ItemsSource)
        {
            var item = AssociatedObject.CurrentColumn.GetCellContent(i);
            if (item == null)
                return;
            var parent = GetParent<DataGridCell>(item);
            if (parent != null)
                parent.Background = new SolidColorBrush(Colors.Red);
        }
    }

    public static T GetParent<T>(DependencyObject source)
            where T : DependencyObject
    {
        DependencyObject parent = VisualTreeHelper.GetParent(source);
        while (parent != null && !typeof(T).IsAssignableFrom(parent.GetType()))
        {
            parent = VisualTreeHelper.GetParent(parent);
        }
        return (T)parent;
    }
}