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C#構(gòu)建分頁(yè)應(yīng)用的方法分析

更新時(shí)間：2017年01月24日 10:30:27 作者：pan_junbiao

這篇文章主要介紹了C#構(gòu)建分頁(yè)應(yīng)用的方法,結(jié)合實(shí)例形式分析了C#創(chuàng)建分頁(yè)功能的具體步驟與相關(guān)實(shí)現(xiàn)技巧,需要的朋友可以參考下

本文實(shí)例講述了C#構(gòu)建分頁(yè)應(yīng)用的方法。分享給大家供大家參考，具體如下：

1、SQL語(yǔ)句

WITH [temptableforStockIC] AS (
  SELECT *,ROW_NUMBER() OVER (ORDER BY CreateTime DESC) AS RowNumber FROM [StockIC] WHERE 1=1 AND Model = 'FTY765OP'
)
SELECT * FROM [temptableforStockIC] WHERE RowNumber BETWEEN 1 AND 10

2、后臺(tái)方法

/// <summary>
/// 表名
/// </summary>
private const string _tableNane = "StockIC";
/// <summary>
/// 獲取庫(kù)存列表
/// </summary>
public List<StockIcResult> GetStockIcList(StockIcParam param)
{
  List<StockIcResult> list = new List<StockIcResult>();
  string sql = "WITH [temptablefor{0}] AS";
  sql += " (SELECT *,ROW_NUMBER() OVER (ORDER BY {1}) AS RowNumber FROM [{0}] WHERE 1=1 {2})";
  sql += " SELECT * FROM [temptablefor{0}] WHERE RowNumber BETWEEN {3} AND {4}";
  StringBuilder sqlCondition = new StringBuilder();
  List<SqlParameter> sqlParams = new List<SqlParameter>();
  //型號(hào)
  if (!String.IsNullOrEmpty(param.Model))
  {
    sqlCondition.AppendFormat(" AND Model LIKE '%{0}%'", param.Model);
  }
  //開(kāi)始時(shí)間
  if (param.BeginTime.HasValue)
  {
    sqlCondition.Append(" AND CreateTime >= @BeginTime");
    sqlParams.Add(new SqlParameter("@BeginTime", param.BeginTime.Value));
  }
  //結(jié)束時(shí)間
  if (param.EndTime.HasValue)
  {
    sqlCondition.Append(" AND CreateTime < @EndTime");
    sqlParams.Add(new SqlParameter("@EndTime", param.EndTime.Value.AddDays(1)));
  }
  //排序
  if (String.IsNullOrWhiteSpace(param.OrderBy))
  {
    param.OrderBy = " CreateTime DESC";
  }
  //分頁(yè)
  param.PageIndex = param.PageIndex - 1;
  Int64 startNumber = param.PageIndex * param.PageSize + 1;
  Int64 endNumber = startNumber + param.PageSize - 1;
  //拼裝SQL
  sql = String.Format(sql, _tableNane, param.OrderBy, sqlCondition, startNumber, endNumber);
  //執(zhí)行SQL語(yǔ)句
  DataSet dataSet = DBHelper.GetReader(sql.ToString(), sqlParams.ToArray());
  list = TranToList(dataSet);
  return list;
}

注意：DBHelper.GetReader()方法、TranToList()方法等請(qǐng)自己完善。

一些計(jì)算方法

//分頁(yè)
Int64 startNumber = (param.PageIndex - 1) * param.PageSize + 1;
Int64 endNumber = startNumber + param.PageSize - 1;
//總頁(yè)數(shù) = (數(shù)據(jù)總數(shù) + 分頁(yè)大小 -1) / 分頁(yè)大小
TotalPage = (TotalCount + PageSize - 1) / PageSize;

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希望本文所述對(duì)大家C#程序設(shè)計(jì)有所幫助。

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