C#導出Excel按照指定格式設置單元格屬性值

最近項目中一直在寫XML、Table、Excel之間的轉化。之前一直都是不考慮格式的導出，今天給出一個格式，讓按照格式導出，還真把我這新手為難了一翻，網上給出的資料基本一樣。為了一個單元格文字變色糾結了很久。下面把學習資料發出，希望對新手學習有所幫助：

下面是會用到的導出屬性。

合並單元格屬性：

worksheet.get_Range(worksheet.Cells[rowIndex, columnCount + 1], worksheet.Cells[rowIndex + 2, columnCount + 1]). MergeCells = true;

 

設置某一個單元格中字體的顏色：

worksheet.get_Range(worksheet.Cells[rowIndex, 5], worksheet.Cells[rowIndex, 8]). Font.ColorIndex = 5;(這個在網上找的一直變不了色，后面自己試出來了)

字體顏色的index值：

選定區間設置字符串格式或數字格式：

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

            range.NumberFormat =  "@";//設置數字文本格式

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

            rangeinfo.NumberFormat =  "00";

用於匯總和計算時(所計算的字段值必須是數字格式)：

worksheet.Cells[rowIndex + i, columnCount+1] =  "=CEILING(D" + (rowIndex + i).ToString() + "*1.01+1,2)"; i是變量

 

PS：一下代碼則可導出如下圖的Excel格式：

 

// 導出為Excel格式文件
        /// </summary>
        /// <param name="dt">作為數據源的DataTable</param>
        /// <param name="saveFile">帶路徑的保存文件名</param>
        /// <param name="title">一個Excel sheet的標題</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("無法打開EXcel，請檢查Excel是否可用或者是否安裝好Excel");
                return;
            }
 
            int rowCount = dt.Rows.Count;//行數
            int columnCount = dt.Columns.Count;//列數
            int rowIndex = 1;
            int colindex = 1;
            //保存文化環境
            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 = "報表";//一個sheet的名稱
            rptExcel.Visible = true;//打開導出的Excel文件
 
            worksheet.Cells[1, 1] = "27705";//模版號
            rowIndex++;
            //第二行內容
            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";
            //合並打印數量單元格
            worksheet.Cells[rowIndex, columnCount+1] = "打印數量";
            worksheet.Cells[rowIndex, columnCount+2] = "包裝數量";
            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++;
            //第三行內容
            worksheet.Cells[rowIndex, 1] = "貨名";
            worksheet.Cells[rowIndex, 2] = "Line";
            //合並第三行第二列
            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++;
            //填充列標題
            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++;
           
            //創建對象數組存儲DataTable的數據，這樣的效率比直接將Datateble的數據填充worksheet.Cells[row,col]高
            object[,] objData = new object[rowCount, columnCount];
           
            //填充內容到對象數組
            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();
            }
           
            
            //將對象數組的值賦給Excel對象
            Microsoft.Office.Interop.Excel.Range range = worksheet.get_Range(worksheet.Cells[rowIndex, 1], worksheet.Cells[rowCount+rowIndex-1, columnCount-1]);
            range.NumberFormat = "@";//設置數字文本格式
            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)
                {
                    
                    //計算打印數量
                    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)";
                }
            }
            
            //設置格式
            rptExcel.StandardFont = "新細明體";
            rptExcel.StandardFontSize = 12;
            worksheet.get_Range(worksheet.Cells[1, 1], worksheet.Cells[rowCount+rowIndex, columnCount]).Columns.AutoFit();//設置單元格寬度為自適應
            worksheet.get_Range(worksheet.Cells[1, 1], worksheet.Cells[rowCount+rowIndex, columnCount]).HorizontalAlignment = Microsoft.Office.Interop.Excel.XlVAlign.xlVAlignCenter;//居中對齊
            //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;//設置邊框
           //匯總
            rowIndex = rowCount + rowIndex;
            worksheet.Cells[rowIndex, 4] = "=SUM(D5:D10)";
           
            
            //恢復文化環境
            System.Threading.Thread.CurrentThread.CurrentCulture = currentCI;
            try
            {
                //rptExcel.Save(saveFile); //自動創建一個新的Excel文檔保存在“我的文檔”里，如果不用SaveFileDialog就可用這種方法
                workbook.Saved=true;
                workbook.SaveCopyAs(saveFile);//以復制的形式保存在已有的文檔里
                PublicClass.HintBox("數據已經成功導出為Excel文件！");
            }
            catch (Exception ex)
            {
                PublicClass.HintBox("導出文件出錯，文件可能正被打開，具體原因：" + 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>
        /// 獲得所有的Excel進程
        /// </summary>
        /// <returns>所有的Excel進程</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();
            }
        }