private static IQueryable <T> PerformQuery <T>(this IDataServiceComponent dataService, IQueryable <T> entities, out IQueryable <T> totalCountQuery)
where T : class
{
totalCountQuery = null;
RequestContext reqCtxt = RequestContext.Current;
QueryRequest queryInfo = reqCtxt.CurrentQueryInfo;
entities = PerformFilter(dataService, entities, queryInfo.filterInfo, queryInfo.GetDbSetInfo());
if (queryInfo.isIncludeTotalCount)
{
totalCountQuery = entities;
}
entities = PerformSort(dataService, entities, queryInfo.sortInfo);
entities = GetPage(dataService, entities, queryInfo.pageIndex, queryInfo.pageSize, queryInfo.pageCount, queryInfo.GetDbSetInfo());
return(entities);
}