C#EXCEL 操作类--C#DataToExcel帮助类

using System;
using System.Diagnostics;
//using Excel;
namespace DotNet.Utilities
{
    /// <summary>
    /// 操作EXCEL导出数据报表的类
    /// </summary>
    public class DataToExcel
    {
        public DataToExcel()
        {
        }
 
        #region 操作EXCEL的一个类(需要Excel.dll支持)
 
        private int titleColorindex = 15;
        /// <summary>
        /// 标题背景色
        /// </summary>
        public int TitleColorIndex
        {
            set { titleColorindex = value; }
            get { return titleColorindex; }
        }
 
        private DateTime beforeTime;      //Excel启动之前时间
        private DateTime afterTime;        //Excel启动之后时间
 
        #region 创建一个Excel示例
        /// <summary>
        /// 创建一个Excel示例
        /// </summary>
        public void CreateExcel()
        {
            //Excel.Application excel = new Excel.Application();
            //excel.Application.Workbooks.Add(true);
            //excel.Cells[1, 1] = "第1行第1列";
            //excel.Cells[1, 2] = "第1行第2列";
            //excel.Cells[2, 1] = "第2行第1列";
            //excel.Cells[2, 2] = "第2行第2列";
            //excel.Cells[3, 1] = "第3行第1列";
            //excel.Cells[3, 2] = "第3行第2列";
 
            ////保存
            //excel.ActiveWorkbook.SaveAs("./tt.xls", XlFileFormat.xlExcel9795, null, null, false, false, Excel.XlSaveAsAccessMode.xlNoChange, null, null, null, null, null);
            ////打开显示
            //excel.Visible = true;
            ////      excel.Quit();
            ////      excel=null;            
            ////      GC.Collect();//垃圾回收
        }
        #endregion
 
        #region 将DataTable的数据导出显示为报表
        /// <summary>
        /// 将DataTable的数据导出显示为报表
        /// </summary>
        /// <param name="dt">要导出的数据</param>
        /// <param name="strTitle">导出报表的标题</param>
        /// <param name="FilePath">保存文件的路径</param>
        /// <returns></returns>
        //public string OutputExcel(System.Data.DataTable dt, string strTitle, string FilePath)
        //{
        //    beforeTime = DateTime.Now;
 
        //    Excel.Application excel;
        //    Excel._Workbook xBk;
        //    Excel._Worksheet xSt;
 
        //    int rowIndex = 4;
        //    int colIndex = 1;
 
        //    excel = new Excel.ApplicationClass();
        //    xBk = excel.Workbooks.Add(true);
        //    xSt = (Excel._Worksheet)xBk.ActiveSheet;
 
        //    //取得列标题      
        //    foreach (DataColumn col in dt.Columns)
        //    {
        //        colIndex++;
        //        excel.Cells[4, colIndex] = col.ColumnName;
 
        //        //设置标题格式为居中对齐
        //        xSt.get_Range(excel.Cells[4, colIndex], excel.Cells[4, colIndex]).Font.Bold = true;
        //        xSt.get_Range(excel.Cells[4, colIndex], excel.Cells[4, colIndex]).HorizontalAlignment = Excel.XlVAlign.xlVAlignCenter;
        //        xSt.get_Range(excel.Cells[4, colIndex], excel.Cells[4, colIndex]).Select();
        //        xSt.get_Range(excel.Cells[4, colIndex], excel.Cells[4, colIndex]).Interior.ColorIndex = titleColorindex;//19;//设置为浅黄色，共计有56种
        //    }
 
 
        //    //取得表格中的数据      
        //    foreach (DataRow row in dt.Rows)
        //    {
        //        rowIndex++;
        //        colIndex = 1;
        //        foreach (DataColumn col in dt.Columns)
        //        {
        //            colIndex++;
        //            if (col.DataType == System.Type.GetType("System.DateTime"))
        //            {
        //                excel.Cells[rowIndex, colIndex] = (Convert.ToDateTime(row[col.ColumnName].ToString())).ToString("yyyy-MM-dd");
        //                xSt.get_Range(excel.Cells[rowIndex, colIndex], excel.Cells[rowIndex, colIndex]).HorizontalAlignment = Excel.XlVAlign.xlVAlignCenter;//设置日期型的字段格式为居中对齐
        //            }
        //            else
        //                if (col.DataType == System.Type.GetType("System.String"))
        //                {
        //                    excel.Cells[rowIndex, colIndex] = "'" + row[col.ColumnName].ToString();
        //                    xSt.get_Range(excel.Cells[rowIndex, colIndex], excel.Cells[rowIndex, colIndex]).HorizontalAlignment = Excel.XlVAlign.xlVAlignCenter;//设置字符型的字段格式为居中对齐
        //                }
        //                else
        //                {
        //                    excel.Cells[rowIndex, colIndex] = row[col.ColumnName].ToString();
        //                }
        //        }
        //    }
 
        //    //加载一个合计行      
        //    int rowSum = rowIndex + 1;
        //    int colSum = 2;
        //    excel.Cells[rowSum, 2] = "合计";
        //    xSt.get_Range(excel.Cells[rowSum, 2], excel.Cells[rowSum, 2]).HorizontalAlignment = Excel.XlHAlign.xlHAlignCenter;
        //    //设置选中的部分的颜色      
        //    xSt.get_Range(excel.Cells[rowSum, colSum], excel.Cells[rowSum, colIndex]).Select();
        //    //xSt.get_Range(excel.Cells[rowSum,colSum],excel.Cells[rowSum,colIndex]).Interior.ColorIndex =Assistant.GetConfigInt("ColorIndex");// 1;//设置为浅黄色，共计有56种
 
        //    //取得整个报表的标题      
        //    excel.Cells[2, 2] = strTitle;
 
        //    //设置整个报表的标题格式      
        //    xSt.get_Range(excel.Cells[2, 2], excel.Cells[2, 2]).Font.Bold = true;
        //    xSt.get_Range(excel.Cells[2, 2], excel.Cells[2, 2]).Font.Size = 22;
 
        //    //设置报表表格为最适应宽度      
        //    xSt.get_Range(excel.Cells[4, 2], excel.Cells[rowSum, colIndex]).Select();
        //    xSt.get_Range(excel.Cells[4, 2], excel.Cells[rowSum, colIndex]).Columns.AutoFit();
 
        //    //设置整个报表的标题为跨列居中      
        //    xSt.get_Range(excel.Cells[2, 2], excel.Cells[2, colIndex]).Select();
        //    xSt.get_Range(excel.Cells[2, 2], excel.Cells[2, colIndex]).HorizontalAlignment = Excel.XlHAlign.xlHAlignCenterAcrossSelection;
 
        //    //绘制边框      
        //    xSt.get_Range(excel.Cells[4, 2], excel.Cells[rowSum, colIndex]).Borders.LineStyle = 1;
        //    xSt.get_Range(excel.Cells[4, 2], excel.Cells[rowSum, 2]).Borders[Excel.XlBordersIndex.xlEdgeLeft].Weight = Excel.XlBorderWeight.xlThick;//设置左边线加粗
        //    xSt.get_Range(excel.Cells[4, 2], excel.Cells[4, colIndex]).Borders[Excel.XlBordersIndex.xlEdgeTop].Weight = Excel.XlBorderWeight.xlThick;//设置上边线加粗
        //    xSt.get_Range(excel.Cells[4, colIndex], excel.Cells[rowSum, colIndex]).Borders[Excel.XlBordersIndex.xlEdgeRight].Weight = Excel.XlBorderWeight.xlThick;//设置右边线加粗
        //    xSt.get_Range(excel.Cells[rowSum, 2], excel.Cells[rowSum, colIndex]).Borders[Excel.XlBordersIndex.xlEdgeBottom].Weight = Excel.XlBorderWeight.xlThick;//设置下边线加粗
 
 
 
        //    afterTime = DateTime.Now;
 
        //    //显示效果      
        //    //excel.Visible=true;      
        //    //excel.Sheets[0] = "sss";
 
        //    ClearFile(FilePath);
        //    string filename = DateTime.Now.ToString("yyyyMMddHHmmssff") + ".xls";
        //    excel.ActiveWorkbook.SaveAs(FilePath + filename, Excel.XlFileFormat.xlExcel9795, null, null, false, false, Excel.XlSaveAsAccessMode.xlNoChange, null, null, null, null, null);
 
        //    //wkbNew.SaveAs strBookName;
        //    //excel.Save(strExcelFileName);
 
        //    #region  结束Excel进程
 
        //    //需要对Excel的DCOM对象进行配置:dcomcnfg
 
 
        //    //excel.Quit();
        //    //excel=null;            
 
        //    xBk.Close(null, null, null);
        //    excel.Workbooks.Close();
        //    excel.Quit();
 
 
        //    //注意：这里用到的所有Excel对象都要执行这个操作，否则结束不了Excel进程
        //    //      if(rng != null)
        //    //      {
        //    //        System.Runtime.InteropServices.Marshal.ReleaseComObject(rng);
        //    //        rng = null;
        //    //      }
        //    //      if(tb != null)
        //    //      {
        //    //        System.Runtime.InteropServices.Marshal.ReleaseComObject(tb);
        //    //        tb = null;
        //    //      }
        //    if (xSt != null)
        //    {
        //        System.Runtime.InteropServices.Marshal.ReleaseComObject(xSt);
        //        xSt = null;
        //    }
        //    if (xBk != null)
        //    {
        //        System.Runtime.InteropServices.Marshal.ReleaseComObject(xBk);
        //        xBk = null;
        //    }
        //    if (excel != null)
        //    {
        //        System.Runtime.InteropServices.Marshal.ReleaseComObject(excel);
        //        excel = null;
        //    }
        //    GC.Collect();//垃圾回收
        //    #endregion
 
        //    return filename;
 
        //}
        #endregion
 
        #region Kill Excel进程
 
        /// <summary>
        /// 结束Excel进程
        /// </summary>
        public void KillExcelProcess()
        {
            Process[] myProcesses;
            DateTime startTime;
            myProcesses = Process.GetProcessesByName("Excel");
 
            //得不到Excel进程ID，暂时只能判断进程启动时间
            foreach (Process myProcess in myProcesses)
            {
                startTime = myProcess.StartTime;
                if (startTime > beforeTime && startTime < afterTime)
                {
                    myProcess.Kill();
                }
            }
        }
        #endregion
 
        #endregion
 
        #region 将DataTable的数据导出显示为报表(不使用Excel对象，使用COM.Excel)
 
        #region 使用示例
        /*使用示例：
         * DataSet ds=(DataSet)Session["AdBrowseHitDayList"];
            string ExcelFolder=Assistant.GetConfigString("ExcelFolder");
            string FilePath=Server.MapPath(".")+"\"+ExcelFolder+"\";
       
            //生成列的中文对应表
            Hashtable nameList = new Hashtable();
            nameList.Add("ADID", "广告编码");
            nameList.Add("ADName", "广告名称");
            nameList.Add("year", "年");
            nameList.Add("month", "月");
            nameList.Add("browsum", "显示数");
            nameList.Add("hitsum", "点击数");
            nameList.Add("BrowsinglIP", "独立IP显示");
            nameList.Add("HitsinglIP", "独立IP点击");
            //利用excel对象
            DataToExcel dte=new DataToExcel();
            string filename="";
            try
            {      
                if(ds.Tables[0].Rows.Count>0)
                {
                    filename=dte.DataExcel(ds.Tables[0],"标题",FilePath,nameList);
                }
            }
            catch
            {
                //dte.KillExcelProcess();
            }
       
            if(filename!="")
            {
                Response.Redirect(ExcelFolder+"\"+filename,true);
            }
         * 
         * */
 
        #endregion
 
        /// <summary>
        /// 将DataTable的数据导出显示为报表(不使用Excel对象)
        /// </summary>
        /// <param name="dt">数据DataTable</param>
        /// <param name="strTitle">标题</param>
        /// <param name="FilePath">生成文件的路径</param>
        /// <param name="nameList"></param>
        /// <returns></returns>
        //public string DataExcel(System.Data.DataTable dt, string strTitle, string FilePath, Hashtable nameList)
        //{
        //    COM.Excel.cExcelFile excel = new COM.Excel.cExcelFile();
        //    ClearFile(FilePath);
        //    string filename = DateTime.Now.ToString("yyyyMMddHHmmssff") + ".xls";
        //    excel.CreateFile(FilePath + filename);
        //    excel.PrintGridLines = false;
 
        //    COM.Excel.cExcelFile.MarginTypes mt1 = COM.Excel.cExcelFile.MarginTypes.xlsTopMargin;
        //    COM.Excel.cExcelFile.MarginTypes mt2 = COM.Excel.cExcelFile.MarginTypes.xlsLeftMargin;
        //    COM.Excel.cExcelFile.MarginTypes mt3 = COM.Excel.cExcelFile.MarginTypes.xlsRightMargin;
        //    COM.Excel.cExcelFile.MarginTypes mt4 = COM.Excel.cExcelFile.MarginTypes.xlsBottomMargin;
 
        //    double height = 1.5;
        //    excel.SetMargin(ref mt1, ref height);
        //    excel.SetMargin(ref mt2, ref height);
        //    excel.SetMargin(ref mt3, ref height);
        //    excel.SetMargin(ref mt4, ref height);
 
        //    COM.Excel.cExcelFile.FontFormatting ff = COM.Excel.cExcelFile.FontFormatting.xlsNoFormat;
        //    string font = "宋体";
        //    short fontsize = 9;
        //    excel.SetFont(ref font, ref fontsize, ref ff);
 
        //    byte b1 = 1,
        //        b2 = 12;
        //    short s3 = 12;
        //    excel.SetColumnWidth(ref b1, ref b2, ref s3);
 
        //    string header = "页眉";
        //    string footer = "页脚";
        //    excel.SetHeader(ref header);
        //    excel.SetFooter(ref footer);
 
 
        //    COM.Excel.cExcelFile.ValueTypes vt = COM.Excel.cExcelFile.ValueTypes.xlsText;
        //    COM.Excel.cExcelFile.CellFont cf = COM.Excel.cExcelFile.CellFont.xlsFont0;
        //    COM.Excel.cExcelFile.CellAlignment ca = COM.Excel.cExcelFile.CellAlignment.xlsCentreAlign;
        //    COM.Excel.cExcelFile.CellHiddenLocked chl = COM.Excel.cExcelFile.CellHiddenLocked.xlsNormal;
 
        //    // 报表标题
        //    int cellformat = 1;
        //    //      int rowindex = 1,colindex = 3;          
        //    //      object title = (object)strTitle;
        //    //      excel.WriteValue(ref vt, ref cf, ref ca, ref chl,ref rowindex,ref colindex,ref title,ref cellformat);
 
        //    int rowIndex = 1;//起始行
        //    int colIndex = 0;
 
 
 
        //    //取得列标题        
        //    foreach (DataColumn colhead in dt.Columns)
        //    {
        //        colIndex++;
        //        string name = colhead.ColumnName.Trim();
        //        object namestr = (object)name;
        //        IDictionaryEnumerator Enum = nameList.GetEnumerator();
        //        while (Enum.MoveNext())
        //        {
        //            if (Enum.Key.ToString().Trim() == name)
        //            {
        //                namestr = Enum.Value;
        //            }
        //        }
        //        excel.WriteValue(ref vt, ref cf, ref ca, ref chl, ref rowIndex, ref colIndex, ref namestr, ref cellformat);
        //    }
 
        //    //取得表格中的数据      
        //    foreach (DataRow row in dt.Rows)
        //    {
        //        rowIndex++;
        //        colIndex = 0;
        //        foreach (DataColumn col in dt.Columns)
        //        {
        //            colIndex++;
        //            if (col.DataType == System.Type.GetType("System.DateTime"))
        //            {
        //                object str = (object)(Convert.ToDateTime(row[col.ColumnName].ToString())).ToString("yyyy-MM-dd"); ;
        //                excel.WriteValue(ref vt, ref cf, ref ca, ref chl, ref rowIndex, ref colIndex, ref str, ref cellformat);
        //            }
        //            else
        //            {
        //                object str = (object)row[col.ColumnName].ToString();
        //                excel.WriteValue(ref vt, ref cf, ref ca, ref chl, ref rowIndex, ref colIndex, ref str, ref cellformat);
        //            }
        //        }
        //    }
        //    int ret = excel.CloseFile();
 
        //    //      if(ret!=0)
        //    //      {
        //    //        //MessageBox.Show(this,"Error!");
        //    //      }
        //    //      else
        //    //      {
        //    //        //MessageBox.Show(this,"请打开文件c:\test.xls!");
        //    //      }
        //    return filename;
 
        //}
 
        #endregion
 
        #region  清理过时的Excel文件
 
        private void ClearFile(string FilePath)
        {
            String[] Files = System.IO.Directory.GetFiles(FilePath);
            if (Files.Length > 10)
            {
                for (int i = 0; i < 10; i++)
                {
                    try
                    {
                        System.IO.File.Delete(Files[i]);
                    }
                    catch
                    {
                    }
 
                }
            }
        }
        #endregion
 
    }
}