/// <summary>
/// 分页查询数据列表并排序
/// </summary>
/// <param name="pageIndex">页码</param>
/// <param name="pageSize">每页数量</param>
/// <param name="whereLandba">查询条件</param>
/// <param name="orderLandba">排序条件</param>
/// <param name="isAsc">是否升序</param>
/// <returns>数据列表</returns>
public IQueryable <T> GetPageListOrderBy <TKey>(int pageIndex, int pageSize, Expression <Func <T, bool> > whereLandba, Expression <Func <T, TKey> > orderLandba, bool isAsc = true)
{
return(dal.GetPageListOrderBy(pageIndex, pageSize, whereLandba, orderLandba, isAsc));
}