C# 创建含多层分类标签的Excel图表
相较于数据,图表更能直观的体现数据的变化趋势。在数据表格中,同一数据值,可能同时代表不同的数据分类,表现在图表中则是一个数据体现在多个数据分类标签下。通常生成的图表一般默认只有一种分类标签,下面的方法将通过编程的方式来介绍在Excel中如何来生成含多层分类标签的图表。
使用工具:Spire.XLS for .NET
1.通过官网(https://www.e-iceblue.cn/Introduce/Spire-XLS-NET.html )下载安装包--解压-安装。在程序中添加引用Spire.XLS.dll,dll文件在安装路径下的bin文件夹中。
2.通过 Nuget 官网。(http://www.nuget.org/packages/Spire.XLS/ )
添加引用完成后,如下图:
C#示例代码
Step1:创建工作表
//创建Workbook实例,获取工作表 Workbook wb = new Workbook(); Worksheet sheet = wb.Worksheets[0];
Step2:写入数据到表格
sheet.Range["A2"].Text = "出口前"; sheet.Range["A5"].Text = "出口后"; sheet.Range["B1"].Text = "年份"; sheet.Range["B2"].Text = "2017年"; sheet.Range["B6"].Text = "2018年"; sheet.Range["C1"].Text = "季度"; sheet.Range["C2"].Text = "1季度"; sheet.Range["C3"].Text = "2季度"; sheet.Range["C4"].Text = "3季度"; sheet.Range["C5"].Text = "4季度"; sheet.Range["C6"].Text = "1季度"; sheet.Range["C7"].Text = "2季度"; sheet.Range["C8"].Text = "3季度"; sheet.Range["C9"].Text = "4季度"; sheet.Range["D1"].Text = "季度产量\n(万吨)"; sheet.Range["D2"].Value = "1.56"; sheet.Range["D3"].Value = "2.3"; sheet.Range["D4"].Value = "3.21"; sheet.Range["D5"].Value = "3.5"; sheet.Range["D6"].Value = "4.8"; sheet.Range["D7"].Value = "5.2"; sheet.Range["D8"].Value = "5.79"; sheet.Range["D9"].Value = "5.58";
Step3:合并单元格并设置单元格对齐方式
sheet.Range["A2:A4"].Merge(); sheet.Range["A5:A9"].Merge(); sheet.Range["B2:B5"].Merge(); sheet.Range["B6:B9"].Merge(); sheet.Range["A1:D9"].Style.HorizontalAlignment = HorizontalAlignType.Center; sheet.Range["A1:D9"].Style.VerticalAlignment = VerticalAlignType.Center;
Step4:添加图表到Excel
//添加柱状图表 Chart chart = sheet.Charts.Add(ExcelChartType.LineMarkers); chart.ChartTitle = "季度产量(万吨)";//设置图表标题 chart.PlotArea.Fill.FillType = ShapeFillType.NoFill; //不填充绘图区域(默认填充灰色) chart.Legend.Delete();//删除图例 //指定柱状图表在工作表中的位置及宽度 chart.LeftColumn = 5; chart.TopRow = 1; chart.RightColumn = 14; //设置图表系列数据来源 chart.DataRange = sheet.Range["D2:D9"]; chart.SeriesDataFromRange = false; chart.Series[0].DataPoints.DefaultDataPoint.DataLabels.HasValue = true; chart.Series[0].Format.LineProperties.Color = Color.BlueViolet; //设置系列分类标签数据来源 ChartSerie serie = chart.Series[0]; serie.CategoryLabels = sheet.Range["A2:C9"];
Step5:设置是否显示多层分类标签
chart.PrimaryCategoryAxis.MultiLevelLable = true;
Step6: 保存文档
wb.SaveToFile("output.xlsx", ExcelVersion.Version2013);
图表创建结果:
全部代码:
![](https://images.cnblogs.com/OutliningIndicators/ContractedBlock.gif)
using Spire.Xls; using Spire.Xls.Charts; using System.Drawing; namespace ChartWithMultiLevelCategoryLabels_XLS { class Program { static void Main(string[] args) { //创建Workbook实例,获取工作表 Workbook wb = new Workbook(); Worksheet sheet = wb.Worksheets[0]; //写入数据到工作表 sheet.Range["A2"].Text = "出口前"; sheet.Range["A5"].Text = "出口后"; sheet.Range["B1"].Text = "年份"; sheet.Range["B2"].Text = "2017年"; sheet.Range["B6"].Text = "2018年"; sheet.Range["C1"].Text = "季度"; sheet.Range["C2"].Text = "1季度"; sheet.Range["C3"].Text = "2季度"; sheet.Range["C4"].Text = "3季度"; sheet.Range["C5"].Text = "4季度"; sheet.Range["C6"].Text = "1季度"; sheet.Range["C7"].Text = "2季度"; sheet.Range["C8"].Text = "3季度"; sheet.Range["C9"].Text = "4季度"; sheet.Range["D1"].Text = "季度产量\n(万吨)"; sheet.Range["D2"].Value = "1.56"; sheet.Range["D3"].Value = "2.3"; sheet.Range["D4"].Value = "3.21"; sheet.Range["D5"].Value = "3.5"; sheet.Range["D6"].Value = "4.8"; sheet.Range["D7"].Value = "5.2"; sheet.Range["D8"].Value = "5.79"; sheet.Range["D9"].Value = "5.58"; //合并单元格,设置单元格对齐方式 sheet.Range["A2:A4"].Merge(); sheet.Range["A5:A9"].Merge(); sheet.Range["B2:B5"].Merge(); sheet.Range["B6:B9"].Merge(); sheet.Range["A1:D9"].Style.HorizontalAlignment = HorizontalAlignType.Center; sheet.Range["A1:D9"].Style.VerticalAlignment = VerticalAlignType.Center; //添加柱状图表 Chart chart = sheet.Charts.Add(ExcelChartType.LineMarkers); chart.ChartTitle = "季度产量(万吨)";//设置图表标题 chart.PlotArea.Fill.FillType = ShapeFillType.NoFill; //不填充绘图区域(默认填充灰色) chart.Legend.Delete();//删除图例 //指定柱状图表在工作表中的位置及宽度 chart.LeftColumn = 5; chart.TopRow = 1; chart.RightColumn = 14; //设置图表系列数据来源 chart.DataRange = sheet.Range["D2:D9"]; chart.SeriesDataFromRange = false; chart.Series[0].DataPoints.DefaultDataPoint.DataLabels.HasValue = true; chart.Series[0].Format.LineProperties.Color = Color.BlueViolet; //设置系列分类标签数据来源 ChartSerie serie = chart.Series[0]; serie.CategoryLabels = sheet.Range["A2:C9"]; //显示多层分类标签 chart.PrimaryCategoryAxis.MultiLevelLable = true; //保存文档 wb.SaveToFile("output.xlsx", ExcelVersion.Version2013); System.Diagnostics.Process.Start("output.xlsx"); } } }
(本文完)