C# Excel 為圖表添加模擬運算表

本文轉載自查看原文 2015-09-10 15:51 2064 C#/ Excel圖表/ .NET/ 模擬數據表/ .NET EXCEL

Excel中的圖表能夠將數據可視化，方便我們比較分析數據。但也有一定的局限，例如：不能夠直接從圖表中讀出原來數據的准確值。Excel提供的解決方案是，在圖表下方添加一個模擬運算表，即在坐標軸下方添加包含建表時所依照的數據的表格。本文旨在介紹通過免費的Free Spire.XLS在C#獨立創建Excel文件，添加數據，生成圖表，並添加模擬運算表。

需要使用的命名空間：

using Spire.Xls;
using System.Drawing;

步驟詳解：

步驟1：創建Excel文件，添加表單。

            Workbook workbook = new Workbook();
            workbook.CreateEmptySheets( 1);
            Worksheet sheet = workbook.Worksheets[ 0];

步驟二：為單元格添加樣本數據，用於一下不生成圖表。

            sheet.Name = " Demo ";
            sheet.Range[ " A1 "].Value = " 月份 ";
            sheet.Range[ " A2 "].Value = " 一月 ";
            sheet.Range[ " A3 "].Value = " 二月 ";
            sheet.Range[ " A4 "].Value = " 三月 ";
            sheet.Range[ " A5 "].Value = " 四月 ";
            sheet.Range[ " A6 "].Value = " 五月 ";
            sheet.Range[ " A7 "].Value = " 六月 ";
            sheet.Range[ " B1 "].Value = " 小王 ";
            sheet.Range[ " B2 "].NumberValue = 3.3;
            sheet.Range[ " B3 "].NumberValue = 2.5;
            sheet.Range[ " B4 "].NumberValue = 2.0;
            sheet.Range[ " B5 "].NumberValue = 3.7;
            sheet.Range[ " B6 "].NumberValue = 4.5;
            sheet.Range[ " B7 "].NumberValue = 4.0;
            sheet.Range[ " C1 "].Value = " 小新 ";
            sheet.Range[ " C2 "].NumberValue = 3.8;
            sheet.Range[ " C3 "].NumberValue = 3.2;
            sheet.Range[ " C4 "].NumberValue = 1.7;
            sheet.Range[ " C5 "].NumberValue = 3.5;
            sheet.Range[ " C6 "].NumberValue = 4.5;
            sheet.Range[ " C7 "].NumberValue = 4.3;
            sheet.Range[ " D1 "].Value = " 小白 ";
            sheet.Range[ " D2 "].NumberValue = 3.0;
            sheet.Range[ " D3 "].NumberValue = 2.8;
            sheet.Range[ " D4 "].NumberValue = 3.5;
            sheet.Range[ " D5 "].NumberValue = 2.3;
            sheet.Range[ " D6 "].NumberValue = 3.3;
            sheet.Range[ " D7 "].NumberValue = 3.8;

步驟三：利用步驟二填充的數據，生成柱形圖，設置其在Excel中的位置，圖表名稱等。

            Chart chart = sheet.Charts.Add(ExcelChartType.Column3DClustered);
            chart.DataRange = sheet.Range[ " B1:D7 "];
            chart.SeriesDataFromRange = false;
            chart.TopRow = 7;
            chart.BottomRow = 28;
            chart.LeftColumn = 3;
            chart.RightColumn = 11;
            chart.ChartTitle = " 帶模擬數據表的柱狀圖示例 ";
            chart.ChartTitleArea.IsBold = true;
            chart.ChartTitleArea.Size = 12;
            Spire.Xls.Charts.ChartSerie cs1 = chart.Series[ 0];
            cs1.CategoryLabels = sheet.Range[ " A2:A7 "];

步驟四：為柱狀圖添加模擬數據表。

chart.HasDataTable = true;

步驟五：保存文檔為2010版Excel。

workbook.SaveToFile( " S3.xlsx ", ExcelVersion.Version2010);

代碼運行后效果截圖：

完整代碼：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Spire.Xls;
using System.Drawing;

namespace ConsoleApplication2
{
     class Program
    {
         static void Main( string[] args)
        {
            Workbook workbook = new Workbook();
            workbook.CreateEmptySheets( 1);
            Worksheet sheet = workbook.Worksheets[ 0];

            sheet.Name = " Demo ";
            sheet.Range[ " A1 "].Value = " 月份 ";
            sheet.Range[ " A2 "].Value = " 一月 ";
            sheet.Range[ " A3 "].Value = " 二月 ";
            sheet.Range[ " A4 "].Value = " 三月 ";
            sheet.Range[ " A5 "].Value = " 四月 ";
            sheet.Range[ " A6 "].Value = " 五月 ";
            sheet.Range[ " A7 "].Value = " 六月 ";
            sheet.Range[ " B1 "].Value = " 小王 ";
            sheet.Range[ " B2 "].NumberValue = 3.3;
            sheet.Range[ " B3 "].NumberValue = 2.5;
            sheet.Range[ " B4 "].NumberValue = 2.0;
            sheet.Range[ " B5 "].NumberValue = 3.7;
            sheet.Range[ " B6 "].NumberValue = 4.5;
            sheet.Range[ " B7 "].NumberValue = 4.0;
            sheet.Range[ " C1 "].Value = " 小新 ";
            sheet.Range[ " C2 "].NumberValue = 3.8;
            sheet.Range[ " C3 "].NumberValue = 3.2;
            sheet.Range[ " C4 "].NumberValue = 1.7;
            sheet.Range[ " C5 "].NumberValue = 3.5;
            sheet.Range[ " C6 "].NumberValue = 4.5;
            sheet.Range[ " C7 "].NumberValue = 4.3;
            sheet.Range[ " D1 "].Value = " 小白 ";
            sheet.Range[ " D2 "].NumberValue = 3.0;
            sheet.Range[ " D3 "].NumberValue = 2.8;
            sheet.Range[ " D4 "].NumberValue = 3.5;
            sheet.Range[ " D5 "].NumberValue = 2.3;
            sheet.Range[ " D6 "].NumberValue = 3.3;
            sheet.Range[ " D7 "].NumberValue = 3.8;

            Chart chart = sheet.Charts.Add(ExcelChartType.Column3DClustered);
            chart.DataRange = sheet.Range[ " B1:D7 "];
            chart.SeriesDataFromRange = false;
            chart.TopRow = 7;
            chart.BottomRow = 28;
            chart.LeftColumn = 3;
            chart.RightColumn = 11;
            chart.ChartTitle = " 帶模擬數據表的柱狀圖示例 ";
            chart.ChartTitleArea.IsBold = true;
            chart.ChartTitleArea.Size = 12;
            Spire.Xls.Charts.ChartSerie cs1 = chart.Series[ 0];
            cs1.CategoryLabels = sheet.Range[ " A2:A7 "];

            chart.HasDataTable = true;

            workbook.SaveToFile( " S3.xlsx ", ExcelVersion.Version2010);
            System.Diagnostics.Process.Start( " S3.xlsx ");
        }
    }
}

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