public static Page <TSource> ToPage <TSource>(this IList <TSource> source, int totalRecordCount, Paging paging)
{
if (source == null)
{
throw new ArgumentNullException(nameof(source));
}
var skipCount = PagingExtensions.GetSkipCount(paging);
var page = new Page <TSource>
{
HasNext = paging != null && totalRecordCount > 0 && skipCount + paging.RecordsPerPage < totalRecordCount,
HasPrevious = paging != null && totalRecordCount > 0 && skipCount > 0,
TotalPageCount = paging == null ? 1 : paging.RecordsPerPage == 0 ? 0 : (int)Math.Ceiling((float)totalRecordCount / (float)paging.RecordsPerPage),
PageNumber = paging?.PageNumber ?? 0,
RecordsPerPage = paging?.RecordsPerPage ?? 0,
TotalRecordCount = totalRecordCount,
Items = source.ToList(),
};
return(page);
}
public static IQueryable <TSource> TakePage <TSource>(this IQueryable <TSource> source, Paging paging)
{
if (source == null)
{
throw new ArgumentNullException(nameof(source));
}
if (paging == null)
{
return(source);
}
if (paging.SortInfo != null && paging.SortInfo.Any())
{
var orderings = string.Join(", ", paging.SortInfo.Select((s, idx) => String.Format("{0} {1}", s.PropertyName, s.SortOrder == SortOrder.Ascending ? "ASC" : "DESC")));
source = source.OrderBy(orderings);
}
return(source.Skip(PagingExtensions.GetSkipCount(paging)).Take(paging.RecordsPerPage));
}