/// <summary>
/// 把<see cref="IOrderedQueryable{T}"/>集合继续指定字段排序方式进行排序
/// </summary>
/// <typeparam name="T">动态类型</typeparam>
/// <param name="source">要排序的数据集</param>
/// <param name="sortCondition">列表字段排序条件</param>
/// <returns></returns>
public static IOrderedQueryable <T> ThenBy <T>(this IOrderedQueryable <T> source, SortCondition sortCondition)
{
source.CheckNotNull("source");
sortCondition.CheckNotNull("sortCondition");
return(source.ThenBy(sortCondition.SortField, sortCondition.ListSortDirection));
}
/// <summary>
/// 把<see cref="IOrderedQueryable{T}"/>集合继续按指定字段排序方式进行排序
/// </summary>
/// <typeparam name="T">动态类型</typeparam>
/// <param name="source">要排序的数据集</param>
/// <param name="propertyName">排序属性名</param>
/// <param name="sortDirection">排序方向</param>
/// <returns></returns>
public static IOrderedQueryable <T> ThenBy <T>(this IOrderedQueryable <T> source,
string propertyName,
ListSortDirection sortDirection = ListSortDirection.Ascending)
{
source.CheckNotNull("source");
propertyName.CheckNotNullOrEmpty("propertyName");
return(CollectionPropertySorter <T> .ThenBy(source, propertyName, sortDirection));
}