使用Epplus生成Excel 图表_.NET_编程开发_程序员俱乐部

1.  前言

　　这是我最近项目刚要的需求，然后在网上找了半天的教材  但是很不幸，有关于Epplus的介绍真的太少了，然后经过了我的不断研究然后不断的采坑，知道现在看到Excel都想吐的时候，终于成功的完成了公司的要求，最后我 稍微的优化了一下代码（毕竟是个刚工作一年多的新人），现在就给大家看一看不足之处，希望给为大佬给以指点，稍后在后面我会给出项目下载。

//首页执行   
DataTable dt = DBhelper.gettable();
            List<RangeData> rlist=new List<RangeData>();
            RangeData rd = new RangeData();
            rd.Charttype = "ColumnStacked";
            rd.Yaxis = "E6,G6,O6";
            rd.UserName = "测试名称";
            rd.Region = "测试地址";
            rd.ChartName = "测试名称";
            rd.ChartKeyword = "F36";
            rd.Appointedtime = DateTime.Now.ToString();
            rlist.Add(rd);
            RangeData rd1 = new RangeData();
            rd1.Charttype = "ColumnClustered";
            rd1.Yaxis = "E6,G6,O6";
            rd1.UserName = "测试名称1";
            rd1.Region = "测试地址1";
            rd1.ChartName = "测试名称1";
            rd1.ChartKeyword = "F36";
            rd1.Appointedtime = DateTime.Now.ToString();
            rlist.Add(rd1);
            RangeData rd2 = new RangeData();
            rd2.Charttype = "Pie";
            rd2.Yaxis = "E6,G6,O6";
            rd2.UserName = "测试名称2";
            rd2.Region = "测试地址2";
            rd2.ChartName = "测试名称2";
            rd2.ChartKeyword = "F36";
            rd2.Appointedtime = DateTime.Now.ToString();
            rlist.Add(rd2);
            RangeData rd3 = new RangeData();
            rd3.Charttype = "singleColumnClustered";
            rd3.Yaxis = "E6,G6,O6";
            rd3.UserName = "测试名称23";
            rd3.Region = "测试地址23";
            rd3.ChartName = "测试名称3";
            rd3.ChartKeyword = "F36";
            rd3.Appointedtime = DateTime.Now.ToString();
            rlist.Add(rd3);
            ExcelInfo.ExportClient("", dt, rlist);

public class ExcelInfo
{

　　　　  /// <summary>
        /// 输出Excel文件
        /// </summary>
        /// <param name="FileName"></param>
        /// <param name="table"></param>
        /// <param name="?"></param>
        public static void ExportClient(string FileName, DataTable table, List<RangeData> Rlist)
        {
            //reportTitle = "Microsoft,IBM,Oracle,Google.Yahoo";
            FileName = FileName+DateTime.Now.ToString("yyyy_MM_dd_HHmmss") + ".xlsx";
           // string TJcell = "D6,F6,H6,AJ6";
            if (Directory.Exists("UpFiles"))
            {
            }
            else
            {
                DirectoryInfo directoryInfo = new DirectoryInfo("UpFiles");
                directoryInfo.Create();
            }
            FileInfo file = new FileInfo(@"D:\文档资料\自学项目\EpplusExcelChartWeb\EpplusExcelChartWeb\upfiles\" + FileName);
            createExcel(file, table, Rlist);
           
        }
        /// <summary>
        /// 创建Excel Sheet
        /// </summary>
        /// <param name="file"></param>
        public static void createExcel(FileInfo file, DataTable table, List<RangeData> Rlist)
        {
            ExcelPackage package = new ExcelPackage(new FileStream(@"D:\文档资料\自学项目\EpplusExcelChartWeb\EpplusExcelChartWeb\test1.xlsx", FileMode.Open));
            ExcelWorksheet sheet = null;
            sheet = package.Workbook.Worksheets[1];
            
            #region 设置Excel数据
            SheetData(table, sheet);
            #endregion
            //设置图形
            if (Rlist.Count > 0)
            {
                ExcelWorksheet sheet1 = null;
                sheet1 = package.Workbook.Worksheets.Add("Data");
                
                for (int i = 0; i < Rlist.Count; i++)
                {
                    SheetData(table, sheet1);
                    sheet.Cells["C3"].Value = Rlist[i].UserName;
                    sheet.Cells["C4"].Value = Rlist[i].Region;
                    sheet.Cells["O4"].Value = Rlist[i].Appointedtime;
                    if (Rlist[i].Charttype == "ColumnStacked")
                    {
                        //堆积柱形图
                        ColumnStacked(table, sheet, Rlist[i].Yaxis, Rlist[i].ChartName,Rlist[i].ChartKeyword);
                    }
                    else if (Rlist[i].Charttype == "ColumnClustered")
                    {
                        //簇状柱形图
                        ColumnClustered(table, sheet, Rlist[i].Yaxis, Rlist[i].ChartName, Rlist[i].ChartKeyword);
                    }
                    else if (Rlist[i].Charttype == "Pie")
                    {
                        //饼图
                        Pie(table, sheet, Rlist[i].Yaxis, Rlist[i].ChartName, Rlist[i].ChartKeyword);
                    }
                    else if (Rlist[i].Charttype == "singleColumnClustered")
                    {
                        singleColumnClustered(table, sheet, Rlist[i].Yaxis, Rlist[i].ChartName, Rlist[i].ChartKeyword);
                    }
                }
            }
            else
            {
                 System.Web.HttpContext.Current.Response.Write("<script language=javascript>alert('没有数据')</script>");
            }
            package.SaveAs(file);//保存文件 
        }
        //工作簿数据
        private static void SheetData(DataTable table, ExcelWorksheet sheet)
        {
            //if (cols[0] != "")
            //{
            //    //设置列标题
            //    for (int col = 1; col <= cols.Length; col++)
            //    {
            //        sheet.Cells[1, col].Value = cols[col - 1];
            //    }
            //}
            //else
            //{
            //设置列标题
            //for (int col = 1; col <= table.Columns.Count; col++)
            //{
            //    sheet.Cells[1, col].Value = table.Columns[col - 1].ColumnName;
            //}
            //}
            //设置数据
            for (int row = 0; row < table.Rows.Count; row++)
            {
                for (int col = 0; col < table.Columns.Count; col++)
                {
                    string range = sheet.MergedCells[row + 7, col + 2];
                    string strvalue = table.Rows[row][col].ToString();
                    // sheet.Cells[row + 1, col].Style.Numberformat.Format = "#0\\.00%";//设置数据的格式为百分比   
                    if (table.Rows[row]["F36"].ToString() != "")
                    {
                        sheet.Cells[row + 7, col + 2].Style.Fill.PatternType = ExcelFillStyle.Solid;
                        sheet.Cells[row + 7, col + 2].Style.Fill.BackgroundColor.SetColor(Color.Gray);
                        sheet.Cells[row + 7, col + 2].Value = strvalue;
                    }
                    sheet.Cells[row + 7, col + 2].Value = strvalue;

                }
            }
        }
        /// <summary>
        /// 堆积柱形图
        /// </summary>
        private static void ColumnStacked(DataTable table,ExcelWorksheet sheet, string TJCell,string Chartname,string  ChartKeyword)
        {
            ////图表系列
            ExcelChartSerie chartSerie = null;
            //图表
            ExcelChart chart = null;
            chart = sheet.Drawings.AddChart(Chartname, eChartType.ColumnStacked);
            chart.Legend.Position = eLegendPosition.Right;
            chart.Legend.Add();
            chart.SetSize(500, 400);//设置图表大小  
            chart.ShowHiddenData = true;
            #region 规定单元格生成图表
            string[] TJcellarray = TJCell.Split(',');
            string XAxis = string.Empty;
            string YAxis = string.Empty;
            for (int row = 1; row <= table.Rows.Count; row++)
            {
                if (table.Rows[row - 1][ChartKeyword].ToString() != "")
                {
                    for (int j = 0; j < TJcellarray.Length; j++)
                    {
                        XAxis += "Data!" + GetEXcelstr(TJcellarray[j]) + (row + 6) + ",";
                        YAxis += "test!" + TJcellarray[j] + ",";
                    }
                    int Xlength = XAxis.Length;
                    int Ylength = YAxis.Length;
                    XAxis = XAxis.Substring(0, Xlength - 1);
                    YAxis = YAxis.Substring(0, Ylength - 1);
                    chartSerie = chart.Series.Add(XAxis, YAxis);
                    chartSerie.HeaderAddress = sheet.Cells[row + 6, 2];//设置每条线的名称 
                    XAxis = "";
                    YAxis = "";
                }
            }
            #endregion
            //   chartSerie = ChartData(table, cell, sheet, chartSerie, chart, TJcell,"F36");
            chart.SetPosition(table.Rows.Count + 7, 10, 1, 20);//设置图表位置  
        }
        /// <summary>
        /// 多条簇状柱形图
        /// </summary>
        private static void ColumnClustered(DataTable table, ExcelWorksheet sheet, string TJCell, string Chartname, string ChartKeyword)
        {
            ////图表系列
            ExcelChartSerie chartSerie = null;
            //图表
            ExcelChart chart = null;
            chart = sheet.Drawings.AddChart(Chartname, eChartType.ColumnClustered);
            chart.Legend.Position = eLegendPosition.Right;
            chart.Legend.Add();
            chart.SetSize(500, 400);//设置图表大小  
            chart.ShowHiddenData = true;
            #region 规定单元格生成图表
            string[] TJcellarray = TJCell.Split(',');
            string XAxis = string.Empty;
            string YAxis = string.Empty;
            for (int row = 1; row <= table.Rows.Count; row++)
            {
                if (table.Rows[row - 1][ChartKeyword].ToString() != "")
                {
                    for (int j = 0; j < TJcellarray.Length; j++)
                    {
                        XAxis += "Data!" + GetEXcelstr(TJcellarray[j]) + (row + 6) + ",";
                        YAxis += "test!" + TJcellarray[j] + ",";
                    }
                    int Xlength = XAxis.Length;
                    int Ylength = YAxis.Length;
                    XAxis = XAxis.Substring(0, Xlength - 1);
                    YAxis = YAxis.Substring(0, Ylength - 1);
                    chartSerie = chart.Series.Add(XAxis, YAxis);
                    chartSerie.HeaderAddress = sheet.Cells[row + 6, 2];//设置每条线的名称 
                    XAxis = "";
                    YAxis = "";
                }
            }
            #endregion
            //   chartSerie = ChartData(table, cell, sheet, chartSerie, chart, TJcell,"F36");
            chart.SetPosition(table.Rows.Count + 7, 10, 10, 20);//设置图表位置  
        }

        /// <summary>
        ///饼图
        /// </summary>
        private static void Pie(DataTable table, ExcelWorksheet sheet, string TJCell, string Chartname, string ChartKeyword)
        {
            ////图表系列
            ExcelChartSerie chartSerie = null;
            //图表
            ExcelChart chart = null;
            chart = sheet.Drawings.AddChart(Chartname, eChartType.Pie);
            chart.Legend.Position = eLegendPosition.Right;
            chart.Legend.Add();
            chart.SetSize(500, 400);//设置图表大小  
            chart.ShowHiddenData = true;
            #region 规定单元格生成图表
            string[] TJcellarray = TJCell.Split(',');
            string XAxis = string.Empty;
            string YAxis = string.Empty;
            for (int row = 1; row <= table.Rows.Count; row++)
            {
                if (table.Rows[row - 1][ChartKeyword].ToString() != "")
                {
                    for (int j = 0; j < TJcellarray.Length; j++)
                    {
                        XAxis += "Data!" + GetEXcelstr(TJcellarray[j]) + (row + 6) + ",";
                        YAxis += "test!" + TJcellarray[j] + ",";
                    }
                    int Xlength = XAxis.Length;
                    int Ylength = YAxis.Length;
                    XAxis = XAxis.Substring(0, Xlength - 1);
                    YAxis = YAxis.Substring(0, Ylength - 1);
                    chartSerie = chart.Series.Add(XAxis, YAxis);
                    chartSerie.HeaderAddress = sheet.Cells[row + 6, 2];//设置每条线的名称 
                    XAxis = "";
                    YAxis = "";
                }
            }
            #endregion
            //   chartSerie = ChartData(table, cell, sheet, chartSerie, chart, TJcell,"F36");
            chart.SetPosition(table.Rows.Count + 7+25, 10, 1, 20);//设置图表位置  
        }
        /// <summary>
        /// 单条簇状柱形图
        /// </summary>
        private static void singleColumnClustered(DataTable table, ExcelWorksheet sheet, string TJCell, string Chartname, string ChartKeyword)
        {
            ////图表系列
            ExcelChartSerie chartSerie = null;
            //图表
            ExcelChart chart = null;
            chart = sheet.Drawings.AddChart(Chartname, eChartType.ColumnClustered);
            chart.Legend.Position = eLegendPosition.Right;
            chart.Legend.Add();
            chart.SetSize(500, 400);//设置图表大小  
            chart.ShowHiddenData = true;
            #region 规定单元格生成图表
            string[] TJcellarray = TJCell.Split(',');
            string XAxis = string.Empty;
            string YAxis = string.Empty;
            for (int row = 1; row <= table.Rows.Count; row++)
            {
                if (table.Rows[row - 1][ChartKeyword].ToString() != "")
                {
                    for (int j = 0; j < TJcellarray.Length; j++)
                    {
                        XAxis += "Data!" + GetEXcelstr(TJcellarray[j]) + (row + 6) + ",";
                        YAxis += "test!" + TJcellarray[j] + ",";
                    }
                    int Xlength = XAxis.Length;
                    int Ylength = YAxis.Length;
                    XAxis = XAxis.Substring(0, Xlength - 1);
                    YAxis = YAxis.Substring(0, Ylength - 1);
                    chartSerie = chart.Series.Add(XAxis, YAxis);
                    chartSerie.HeaderAddress = sheet.Cells[row + 6, 2];//设置每条线的名称 
                    XAxis = "";
                    YAxis = "";
                }
            }
            #endregion
            //   chartSerie = ChartData(table, cell, sheet, chartSerie, chart, TJcell,"F36");
            chart.SetPosition(table.Rows.Count + 7 + 25, 10, 10, 20);//设置图表位置  
        }
        /// <summary>
        /// 提取字符串
        /// </summary>
        /// <param name="p_str"></param>
        /// <returns></returns>
        public static string GetEXcelstr(string p_str)
        {
            string strReturn = string.Empty;

            if (p_str == null || p_str.Trim() == "")
            {
                strReturn = "";
            }

            foreach (char chrTemp in p_str)
            {
                if (!Char.IsNumber(chrTemp))
                {

                    strReturn += chrTemp;

                }
            }

            return strReturn;


        }
}

//RangeData类

 public class RangeData  
    {
        /////  <param name="XStartCell">数据开始单元格</param>
        //public  string XStartCell { get; set; }
        //  ///   <param name="XEndCell">数据结束单元格</param>
        //public  string XEndCell { get; set; }
        //  ///    <param name="EduName">Y开始单元格</param>
        //public  string YStartCell { get; set; }
        //  ///     <param name="EduName">Y结束单元格</param>
        //public  string YEndCell { get; set; }
        //图表类型 1.ColumnStacked 堆积柱形图 2.ColumnClustered 多条簇状柱形图 3.Pie饼图4.singleColumnClustered 单条簇状图
        public string Charttype { get; set; }
        //指定Y轴分类标签
        public string Yaxis { get; set; }
        //用户名
        public string UserName { get; set; }
        //所在区域
        public string Region { get; set; }
        //指定时间
        public string Appointedtime { get; set; }
        //图表名称
        public string ChartName { get; set; }
        //制图关键字
        public string ChartKeyword { get; set; }

    }

 如果执行报错 可能是获取Excel文件地址的问题。

下载地址https://files.cnblogs.com/files/Cjb8973/EpplusExcelChartWeb.rar