程序師世界是廣大編程愛好者互助、分享、學習的平台,程序師世界有你更精彩!
首頁
編程語言
C語言|JAVA編程
Python編程
網頁編程
ASP編程|PHP編程
JSP編程
數據庫知識
MYSQL數據庫|SqlServer數據庫
Oracle數據庫|DB2數據庫
 程式師世界 >> 編程語言 >> .NET網頁編程 >> C# >> C#入門知識 >> C#完成Excel靜態生成PivotTable

C#完成Excel靜態生成PivotTable

編輯:C#入門知識

C#完成Excel靜態生成PivotTable。本站提示廣大學習愛好者:(C#完成Excel靜態生成PivotTable)文章只能為提供參考,不一定能成為您想要的結果。以下是C#完成Excel靜態生成PivotTable正文


Excel 中的透視表關於數據剖析來講,異常的便利,並且許多營業人員關於Excel的操作也長短常熟習的,是以用Excel作為剖析數據的界面,不掉為一種很好的選擇。那末若何用C#從數據庫中抓取數據,並在Excel 靜態生成PivotTable呢?上面聯合實例來講明。

普通來講,數據庫的設計都遵守標准化的准繩,從而削減數據的冗余,然則關於數據剖析來講,數據冗余可以或許進步數據加載的速度,是以為了演示透視表,這裡如今數據庫中樹立一個視圖,將須要剖析的數據整合到一個視圖中。以下圖所示:

數據源預備好後,我們先來樹立一個web運用法式,然後用NuGet加載Epplus法式包,以下圖所示:

 在index.aspx前台頁面中,編寫以下劇本:

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="index.aspx.cs" Inherits="ExcelPivot.Web.index" %>

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
  <title>Excel PivotTable</title>
  <link rel="stylesheet" type="text/css" href="css/style.css" /> 
</head>
<body>
  <form id="form1" runat="server">
    <div id="container">

      <div id="contents">

        <div id="post">
          <header>
            <h1> Excel PivotTable </h1>
          </header>
          <div id="metro-array" >
            <div >

              <a class="metro-tile" >
                
                 <input type="button" runat="server" id="Button1" name="btn1" value="回款情形剖析" onserverclick="btn1_ServerClick" 
                          />
              
              </a>

              <a class="metro-tile" >
                 <input type="button" runat="server" id="Button2" name="btn1" value="sampe1" onserverclick="btn1_ServerClick" 
                          />
              </a>
            </div>

            <div >

              <a class="metro-tile" >
                 <input type="button" runat="server" id="btn1" name="btn1" value="sampe1" onserverclick="btn1_ServerClick" 
                          />
              </a>

            </div>

            <div >

              <a class="metro-tile" >
                 <input type="button" runat="server" id="Button3" name="btn1" value="sampe1" onserverclick="btn1_ServerClick" 
                          />
              </a>

              <a class="metro-tile" >
                 <input type="button" runat="server" id="Button4" name="btn1" value="sampe1" onserverclick="btn1_ServerClick" 
                          />
              </a>

              <a class="metro-tile" >
                 <input type="button" runat="server" id="Button5" name="btn1" value="sampe1" onserverclick="btn1_ServerClick" 
                          />
              </a>
            </div>

          </div>
        </div>

      </div>
    </div>
  </form>
</body>
  <script src="js/tileJs.js" type="text/javascript"></script>
</html>


個中 TileJs是一個開源的構建相似win8 Metro作風的javascript庫。

編寫後台劇本:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using OfficeOpenXml;
using OfficeOpenXml.Table;
using OfficeOpenXml.ConditionalFormatting;
using OfficeOpenXml.Style;
using OfficeOpenXml.Utils;
using OfficeOpenXml.Table.PivotTable;
using System.IO;
using System.Data.SqlClient;
using System.Data;
namespace ExcelPivot.Web
{
  public partial class index : System.Web.UI.Page
  {
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    private DataTable getDataSource()
    {
      //createDataTable();
      //return ProductInfo;

      SqlConnection conn = new SqlConnection();
      conn.ConnectionString = "Data Source=.;Initial Catalog=olap;Persist Security Info=True;User ID=sa;Password=sa";
      conn.Open();

      SqlDataAdapter ada = new SqlDataAdapter("select * from v_pm_olap_test", conn);
      DataSet ds = new DataSet();
      ada.Fill(ds);

      return ds.Tables[0];



    }
   
    protected void btn1_ServerClick(object sender, EventArgs e)
    {
      try
      {
        DataTable table = getDataSource();
        string path = "_demo_" + System.Guid.NewGuid().ToString().WordStr("-", "_") + ".xls";
        //string path = "_demo.xls";
        FileInfo fileInfo = new FileInfo(path);
        var excel = new ExcelPackage(fileInfo);

        var wsPivot = excel.Workbook.Worksheets.Add("Pivot");
        var wsData = excel.Workbook.Worksheets.Add("Data");
        wsData.Cells["A1"].LoadFromDataTable(table, true, OfficeOpenXml.Table.TableStyles.Medium6);
        if (table.Rows.Count != 0)
        {
          foreach (DataColumn col in table.Columns)
          {
           
            if (col.DataType == typeof(System.DateTime))
            {
              var colNumber = col.Ordinal + 1;
              var range = wsData.Cells[2, colNumber, table.Rows.Count + 1, colNumber];
              range.Style.Numberformat.Format = "yyyy-MM-dd";
            }
            else
            {

            }
          }
        }

        var dataRange = wsData.Cells[wsData.Dimension.Address.ToString()];
        dataRange.AutoFitColumns();
        var pivotTable = wsPivot.PivotTables.Add(wsPivot.Cells["A1"], dataRange, "Pivot");
        pivotTable.MultipleFieldFilters = true;
        pivotTable.RowGrandTotals = true;
        pivotTable.ColumGrandTotals = true;
        pivotTable.Compact = true;
        pivotTable.CompactData = true;
        pivotTable.GridDropZones = false;
        pivotTable.Outline = false;
        pivotTable.OutlineData = false;
        pivotTable.ShowError = true;
        pivotTable.ErrorCaption = "[error]";
        pivotTable.ShowHeaders = true;
        pivotTable.UseAutoFormatting = true;
        pivotTable.ApplyWidthHeightFormats = true;
        pivotTable.ShowDrill = true;
        pivotTable.FirstDataCol = 3;
        //pivotTable.RowHeaderCaption = "行";

        //row field
        var field004 = pivotTable.Fields["發賣客戶司理"];
        pivotTable.RowFields.Add(field004);

        var field001 = pivotTable.Fields["項目簡稱"];
        pivotTable.RowFields.Add(field001);
        //field001.ShowAll = false;

        //column field
        var field002 = pivotTable.Fields["年"];
        pivotTable.ColumnFields.Add(field002);
        field002.Sort = OfficeOpenXml.Table.PivotTable.eSortType.Ascending;
        var field005 = pivotTable.Fields["月"];
        pivotTable.ColumnFields.Add(field005);
        field005.Sort = OfficeOpenXml.Table.PivotTable.eSortType.Ascending;

        //data field
        var field003 = pivotTable.Fields["回款金額"];
        field003.Sort = OfficeOpenXml.Table.PivotTable.eSortType.Descending;
        pivotTable.DataFields.Add(field003);

        pivotTable.RowGrandTotals = false;
        pivotTable.ColumGrandTotals = false;
       
        //save file
        excel.Save();
        //open excel file
        string file = @"C:\Windows\explorer.exe";
        System.Diagnostics.Process.Start(file, path);

      }
      catch (Exception ex)
      {
       Response.Write(ex.Message);
      }
    }
  }
}

編譯運轉,以下圖所示:

 單擊 [回款情形剖析],稍等少焉,會翻開Excel,並主動生成透視表,以下圖所示:

以上就是本文的全體內容,願望對年夜家的進修有所贊助

  1. 上一頁:
  2. 下一頁:
Copyright © 程式師世界 All Rights Reserved