Classse helper de paginação

CourseLibrary.API/Helpers/PagedList.cs

@@ -0,0 +1,32 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace CourseLibrary.API.Helpers
+{
+ public class PagedList<T> : List<T>
+ {
+ public int CurrentPage { get; private set; }
+ public int TotalPages { get; private set; }
+ public int PageSize { get; private set; }
+ public int TotalCount { get; private set; }
+ public bool HasPrevious => (CurrentPage > 1);
+ public bool HasNext => (CurrentPage < TotalPages);
+
+ public PagedList(List<T> items, int count, int pageNumber, int pageSize)
+ {
+ TotalCount = count;
+ PageSize = pageSize;
+ CurrentPage = pageNumber;
+ TotalPages = (int)Math.Ceiling(count / (double)pageSize);
+ AddRange(items);
+ }
+ public static PagedList<T> Create(IQueryable<T> source, int pageNumber, int pageSize)
+ {
+ var count = source.Count();
+ var items = source.Skip((pageNumber - 1) * pageSize).Take(pageSize).ToList();
+ return new PagedList<T>(items, count, pageNumber, pageSize);
+ }
+ }
+}