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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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namespace POSV.Utils
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{
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/// <summary>
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/// List分页
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/// </summary>
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/// <typeparam name="T"></typeparam>
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public class ListPager<T> : List<T>
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{
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/// <summary>
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/// 总记录
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/// </summary>
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public int TotalCount { get; set; }
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/// <summary>
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/// 总页数
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/// </summary>
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public int PageCount { get; set; } //总页数
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/// <summary>
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/// 当前页码
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/// </summary>
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public int PageNumber { get; set; }
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/// <summary>
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/// 每页显示记录数
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/// </summary>
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public int PageSize { get; set; } //每页显示记录数
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//是否有上一页
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public bool HasPreviousPage
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{
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get { return PageNumber > 1; }
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}
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//是否有下一页
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public bool HasNextPage
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{
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get { return PageNumber < this.PageCount; }
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}
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/// <summary>
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/// 构造方法
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/// </summary>
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/// <param name="dataList"></param>
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/// <param name="pageSize"></param>
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/// <param name="pageNo"></param>
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public ListPager(List<T> data , int pageSize , int pageNumber)
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{
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this.PageSize = pageSize;
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this.PageNumber = pageNumber;
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this.TotalCount = data.Count;
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this.PageCount = (this.TotalCount + this.PageSize - 1) / this.PageSize;
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this.AddRange(data.Skip((pageNumber - 1) * pageSize).Take(pageSize));
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}
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}
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}
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