Silverlight - Scrollviewer 中的 DataGrid，Column.Width="*" 使数据网格占据多个屏幕宽度

当我进行以下设置时，宽度为 * 的最后一列会导致数据网格创建巨大的水平滚动条（将网格扩展到屏幕的多个宽度）。我不太确定为什么会这样，但我确实需要一种方法来避免这种情况。我不想用 * 长度“模拟”列。

编辑：显然我不是唯一注意到这一点的人。http://connect.microsoft.com/VisualStudio/feedback/details/559644/silverlight-4-datagrid-star-column-width

Xaml:

<ScrollViewer Padding="0" HorizontalScrollBarVisibility="Auto" VerticalScrollBarVisibility="Auto"  >
    <sdk:DataGrid AutoGenerateColumns="False" x:Name="dg"/>
</ScrollViewer>

Code:

private void UserControl_Loaded(object sender, RoutedEventArgs e)
    {
        dg.Columns.Add(new DataGridTextColumn { Binding = new Binding("A"), Header = "A" });
        dg.Columns.Add(new DataGridTextColumn { Binding = new Binding("B"), Header = "B" });
        dg.Columns.Add(new DataGridTextColumn { Binding = new Binding("C"), Header = "C" });
        dg.Columns[2].Width = new DataGridLength(1, DataGridLengthUnitType.Star);
        dg.ItemsSource = new[] 
        {
            new I { A = "SAF", B = "SAF", C = "SAF" },
            new I { A = "SAF", B = "SAF", C = "SAF" },
            new I { A = "SAF", B = "SAF", C = "SAF" }
        };
    }

    public class I
    {
        public string A { get; set; }
        public string B { get; set; }
        public string C { get; set; }
    }

您需要在滚动查看器上设置最大宽度吗？否则宽度默认为 auto 并且 maxwidth 为无穷大