35 lines
999 B
C#
35 lines
999 B
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Threading.Tasks;
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using Microsoft.EntityFrameworkCore;
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namespace Catalog26;
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public class PaginatedList<T> : List<T>
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{
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public int PageIndex { get; private set; }
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public int TotalPages { get; private set; }
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public PaginatedList(List<T> items, int count, int pageIndex, int pageSize)
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{
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PageIndex = pageIndex;
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TotalPages = (int)Math.Ceiling(count / (double)pageSize);
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this.AddRange(items);
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}
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public bool HasPreviousPage => PageIndex > 1;
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public bool HasNextPage => PageIndex < TotalPages;
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public static async Task<PaginatedList<T>> CreateAsync(
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IQueryable<T> source, int pageIndex, int pageSize)
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{
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var count = await source.CountAsync();
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var items = await source.Skip(
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(pageIndex - 1) * pageSize)
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.Take(pageSize).ToListAsync();
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return new PaginatedList<T>(items, count, pageIndex, pageSize);
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}
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}
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