最近项目中一直在写XML、Table、Excel之间的转化。之前一直都是不考虑格式的导出，今天给出一个格式，让按照格式导出，还真把我这新手为难了一翻，网上给出的资料基本一样。为了一个单元格文字变色纠结了很久。下面把学习资料发出，希望对新手学习有所帮助：

下面是会用到的导出属性。

合并单元格属性：

worksheet.get_Range(worksheet.Cells[rowIndex, columnCount + 1], worksheet.Cells[rowIndex + 2, columnCount + 1]).

MergeCells = true;

 

设置某一个单元格中字体的颜色：

worksheet.get_Range(worksheet.Cells[rowIndex, 5], worksheet.Cells[rowIndex, 8]).

Font.ColorIndex = 5;(这个在网上找的一直变不了色，后面自己试出来了)

字体颜色的index值：

选定区间设置字符串格式或数字格式：

Microsoft.Office.Interop.Excel.Range range = worksheet.get_Range(worksheet.Cells[rowIndex, 1], worksheet.Cells[rowCount+rowIndex-1, columnCount-1]);

            range.NumberFormat = 

"@";//设置数字文本格式

            Microsoft.Office.Interop.Excel.Range rangeinfo = worksheet.get_Range(worksheet.Cells[rowIndex, 4], worksheet.Cells[rowCount + rowIndex - 1, 4]);

            rangeinfo.NumberFormat = 

"00";

用于汇总和计算时(所计算的字段值必须是数字格式)：

worksheet.Cells[rowIndex + i, columnCount+1] =

 "=CEILING(D" + (rowIndex + i).ToString() + "*1.01+1,2)"; i是变量

 

PS：一下代码则可导出如下图的Excel格式：

 

// 导出为Excel格式文件        ///         /// 作为数据源的DataTable        /// 带路径的保存文件名        /// 一个Excel sheet的标题        public static void DataTabletoExcel(System.Data.DataTable dt, string saveFile)        {           Microsoft.Office.Interop.Excel.Application rptExcel = new Microsoft.Office.Interop.Excel.Application();            if (rptExcel == null)            {                PublicClass.HintBox("无法打开EXcel，请检查Excel是否可用或者是否安装好Excel");                return;            }             int rowCount = dt.Rows.Count;//行数            int columnCount = dt.Columns.Count;//列数            int rowIndex = 1;            int colindex = 1;            //保存文化环境            System.Globalization.CultureInfo currentCI = System.Threading.Thread.CurrentThread.CurrentCulture;            System.Threading.Thread.CurrentThread.CurrentCulture = new System.Globalization.CultureInfo("en-US");             Microsoft.Office.Interop.Excel.Workbook workbook = rptExcel.Workbooks.Add(Microsoft.Office.Interop.Excel.XlWBATemplate.xlWBATWorksheet);            Microsoft.Office.Interop.Excel.Worksheet worksheet = (Microsoft.Office.Interop.Excel.Worksheet)workbook.Sheets.get_Item(1);            worksheet.Name = "报表";//一个sheet的名称            rptExcel.Visible = true;//打开导出的Excel文件             worksheet.Cells[1, 1] = "27705";//模版号            rowIndex++;            //第二行内容            Microsoft.Office.Interop.Excel.Range rangeinfo1 = worksheet.get_Range(worksheet.Cells[rowIndex, colindex + 6],worksheet.Cells[rowIndex, colindex + 7]);            rangeinfo1.NumberFormat = "@";            worksheet.Cells[rowIndex, colindex] = "S#262229";            worksheet.Cells[rowIndex, colindex+6] = dt.Columns[13].ColumnName;            worksheet.Cells[rowIndex, colindex + 7] = dt.Rows[0][13];            worksheet.Cells[rowIndex, colindex+12] = "EAN";            //合并打印数量单元格            worksheet.Cells[rowIndex, columnCount+1] = "打印数量";            worksheet.Cells[rowIndex, columnCount+2] = "包装数量";            worksheet.get_Range(worksheet.Cells[rowIndex, columnCount + 1], worksheet.Cells[rowIndex + 2, columnCount + 1]).MergeCells = true;            worksheet.get_Range(worksheet.Cells[rowIndex, columnCount + 2], worksheet.Cells[rowIndex + 2, columnCount + 2]).MergeCells = true;            rowIndex++;            //第三行内容            worksheet.Cells[rowIndex, 1] = "貨名";            worksheet.Cells[rowIndex, 2] = "Line";            //合并第三行第二列            worksheet.get_Range(worksheet.Cells[rowIndex, 2], worksheet.Cells[rowIndex+1, 2]).MergeCells = true;            worksheet.Cells[rowIndex, 3] = "序號";            worksheet.Cells[rowIndex, 4] = "數量";            worksheet.Cells[rowIndex, 5] = "1 (EUR) size";            worksheet.Cells[rowIndex, 6] = "1a (€)";            worksheet.Cells[rowIndex, 7] = "2 (UK) size";            worksheet.Cells[rowIndex, 8] = "2a (₤)";            worksheet.get_Range(worksheet.Cells[rowIndex, 5], worksheet.Cells[rowIndex, 8]).Font.Bold = true;            worksheet.Cells[rowIndex, 9] = "4";            worksheet.Cells[rowIndex, 10] = "5";            worksheet.Cells[rowIndex, 11] = "6";            worksheet.Cells[rowIndex, 12] = "7";            worksheet.Cells[rowIndex, 13] = "8(barcode)";            worksheet.Cells[rowIndex, 14] = "9";            worksheet.get_Range(worksheet.Cells[rowIndex, 5], worksheet.Cells[rowIndex, 8]).Font.ColorIndex = 5;            rowIndex++;            //填充列标题            for (int i = 0; i < columnCount-1; i++)            {                if (i > 0)                {                    worksheet.Cells[rowIndex, i + 2] = dt.Columns[i].ColumnName;                                    }                else                {                    worksheet.Cells[rowIndex, i+1] = dt.Columns[i].ColumnName;                                    }            }            rowIndex++;                       //创建对象数组存储DataTable的数据，这样的效率比直接将Datateble的数据填充worksheet.Cells[row,col]高            object[,] objData = new object[rowCount, columnCount];                       //填充内容到对象数组            for (int r = 0; r < rowCount; r++)            {                for (int col = 0; col < columnCount-1; col++)                {                    objData[r, col] = dt.Rows[r][col].ToString();                }                 System.Windows.Forms.Application.DoEvents();            }                                   //将对象数组的值赋给Excel对象            Microsoft.Office.Interop.Excel.Range range = worksheet.get_Range(worksheet.Cells[rowIndex, 1], worksheet.Cells[rowCount+rowIndex-1, columnCount-1]);            range.NumberFormat = "@";//设置数字文本格式            Microsoft.Office.Interop.Excel.Range rangeinfo = worksheet.get_Range(worksheet.Cells[rowIndex, 4], worksheet.Cells[rowCount + rowIndex - 1, 4]);            rangeinfo.NumberFormat = "00";            range.Value2 = objData;             for (int i = 0; i < rowCount; i++)            {                if (i > 0)                {                                        //计算打印数量                    worksheet.Cells[rowIndex + i, columnCount+1] = "=CEILING(D" + (rowIndex + i).ToString() + "*1.01+1,2)";                 }                else                {                                       worksheet.Cells[rowIndex + i, columnCount+1] = "=CEILING(D" + (rowIndex + i).ToString() + "*1.01+1,2)";                }            }                        //设置格式            rptExcel.StandardFont = "新細明體";            rptExcel.StandardFontSize = 12;            worksheet.get_Range(worksheet.Cells[1, 1], worksheet.Cells[rowCount+rowIndex, columnCount]).Columns.AutoFit();//设置单元格宽度为自适应            worksheet.get_Range(worksheet.Cells[1, 1], worksheet.Cells[rowCount+rowIndex, columnCount]).HorizontalAlignment = Microsoft.Office.Interop.Excel.XlVAlign.xlVAlignCenter;//居中对齐            //worksheet.get_Range(worksheet.Cells[1, 1], worksheet.Cells[1, columnCount]).Font.Bold = true;            //worksheet.get_Range(worksheet.Cells[1, 1], worksheet.Cells[1, columnCount]).Font.Color= ConsoleColor.Blue;           // worksheet.get_Range(worksheet.Cells[2, 1], worksheet.Cells[rowCount + 2, columnCount]).Borders.LineStyle = 1;//设置边框           //汇总            rowIndex = rowCount + rowIndex;            worksheet.Cells[rowIndex, 4] = "=SUM(D5:D10)";                                   //恢复文化环境            System.Threading.Thread.CurrentThread.CurrentCulture = currentCI;            try            {                //rptExcel.Save(saveFile); //自动创建一个新的Excel文档保存在“我的文档”里，如果不用SaveFileDialog就可用这种方法                workbook.Saved=true;                workbook.SaveCopyAs(saveFile);//以复制的形式保存在已有的文档里                PublicClass.HintBox("数据已经成功导出为Excel文件！");            }            catch (Exception ex)            {                PublicClass.HintBox("导出文件出错，文件可能正被打开，具体原因：" + ex.Message);            }            finally            {                dt.Dispose();                rptExcel.Quit();               System.Runtime.InteropServices.Marshal.ReleaseComObject(rptExcel);               System.Runtime.InteropServices.Marshal.ReleaseComObject(worksheet);               System.Runtime.InteropServices.Marshal.ReleaseComObject(workbook);                GC.Collect();                KillAllExcel();            }        }        /// 
        /// 获得所有的Excel进程        /// 
        /// 
      
       所有的Excel进程
              private static List
      
        GetExcelProcesses()            {            Process[] processes = Process.GetProcesses();            List
       
         excelProcesses = new List
        
         ();             for (int i = 0; i < processes.Length; i++)            {                if (processes[i].ProcessName.ToUpper() == "EXCEL")                    excelProcesses.Add(processes[i]);            }             return excelProcesses;         }        private static void KillAllExcel()        {            List
         
           excelProcess = GetExcelProcesses();            for (int i = 0; i < excelProcess.Count; i++)            {                excelProcess[i].Kill();            }        }