转自:http://blog.youkuaiyun.com/u011981242/article/details/51544571
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:以下代码则可导出如下图的Excel格式:

- /// 导出为Excel格式文件
- /// </summary>
- /// <param name="dt">作为数据源的DataTable</param>
- /// <param name="saveFile">带路径的保存文件名</param>
- /// <param name="title">一个Excel sheet的标题</param>
- 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();
- }
- }
- /// <summary>
- /// 获得所有的Excel进程
- /// </summary>
- /// <returns>所有的Excel进程</returns>
- private static List<Process> GetExcelProcesses()
- {
- Process[] processes = Process.GetProcesses();
- List<Process> excelProcesses = new List<Process>();
- 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<Process> excelProcess = GetExcelProcesses();
- for (int i = 0; i < excelProcess.Count; i++)
- {
- excelProcess[i].Kill();
- }
- }