修改导出Excel

codegit/CallCenterCommon/CallCenter.Utility/NPOI/NPOIHelper.cs

@@ -358,5 +358,147 @@ namespace CallCenter.Utility
 
             return dt;
         }
+
+        //2017-11-11数据第一行为标题
+        #region
+        /// <summary>
+        /// 弹出下载框导出excel（数据第一行为标题）
+        /// </summary>
+        /// <param name="Name"></param>
+        /// <param name="dt"></param>
+        /// <returns></returns>
+        public string ExportToExcel2(string Name, DataTable dt, string[] cols = null)
+        {
+            try
+            {
+                if (dt.Rows.Count > 0)
+                {
+                    HSSFWorkbook workbook = new HSSFWorkbook();
+                    ISheet sheet = workbook.CreateSheet("Sheet1");
+
+                    ICellStyle HeadercellStyle = workbook.CreateCellStyle();
+                    HeadercellStyle.BorderBottom = NPOI.SS.UserModel.BorderStyle.Thin;
+                    HeadercellStyle.BorderLeft = NPOI.SS.UserModel.BorderStyle.Thin;
+                    HeadercellStyle.BorderRight = NPOI.SS.UserModel.BorderStyle.Thin;
+                    HeadercellStyle.BorderTop = NPOI.SS.UserModel.BorderStyle.Thin;
+                    HeadercellStyle.Alignment = HorizontalAlignment.Center;
+                    HeadercellStyle.FillForegroundColor = NPOI.HSSF.Util.HSSFColor.SkyBlue.Index;
+                    HeadercellStyle.FillPattern = FillPattern.SolidForeground;
+                    HeadercellStyle.FillBackgroundColor = NPOI.HSSF.Util.HSSFColor.SkyBlue.Index;
+
+                    //字体
+                    NPOI.SS.UserModel.IFont headerfont = workbook.CreateFont();
+                    headerfont.Boldweight = (short)FontBoldWeight.Bold;
+                    headerfont.FontHeightInPoints = 12;
+                    HeadercellStyle.SetFont(headerfont);
+
+
+                    //用column name 作为列名
+                    int icolIndex = 0;
+                    IRow headerRow = sheet.CreateRow(0);
+                    if (cols == null || (cols != null && cols.Length == 0))
+                    {
+                        //foreach (DataColumn dc in dt.Columns)
+                        //{
+                        //    ICell cell = headerRow.CreateCell(icolIndex);
+                        //    cell.SetCellValue(dc.ColumnName);
+                        //    cell.CellStyle = HeadercellStyle;
+                        //    icolIndex++;
+                        //}
+                        for (int i = 0; i < dt.Columns.Count; i++)
+                        {
+                            ICell cell = headerRow.CreateCell(icolIndex);
+                            cell.SetCellValue(dt.Rows [0][i].ToString());
+                            cell.CellStyle = HeadercellStyle;
+                            icolIndex++;
+                        }
+                    }
+                    else
+                    {
+                        foreach (string dc in cols)
+                        {
+                            ICell cell = headerRow.CreateCell(icolIndex);
+                            cell.SetCellValue(dc);
+                            cell.CellStyle = HeadercellStyle;
+                            icolIndex++;
+                        }
+                    }
+                    ICellStyle cellStyle = workbook.CreateCellStyle();
+
+                    //为避免日期格式被Excel自动替换，所以设定 format 为 『@』 表示一率当成text來看
+                    cellStyle.DataFormat = HSSFDataFormat.GetBuiltinFormat("@");
+                    cellStyle.BorderBottom = NPOI.SS.UserModel.BorderStyle.Thin;
+                    cellStyle.BorderLeft = NPOI.SS.UserModel.BorderStyle.Thin;
+                    cellStyle.BorderRight = NPOI.SS.UserModel.BorderStyle.Thin;
+                    cellStyle.BorderTop = NPOI.SS.UserModel.BorderStyle.Thin;
+
+
+                    NPOI.SS.UserModel.IFont cellfont = workbook.CreateFont();
+                    cellfont.Boldweight = (short)FontBoldWeight.Normal;
+                    cellStyle.SetFont(cellfont);
+
+                    //建立内容行
+                    int iRowIndex = 0;
+                    foreach (DataRow dr in dt.Rows)
+                    {
+                        if (iRowIndex > 0)
+                        {
+
+
+                            int iCellIndex = 0;
+                            IRow irow = sheet.CreateRow(iRowIndex );
+                            for (int i = 0; i < dt.Columns.Count; i++)
+                            {
+                                string strsj = string.Empty;
+                                if (dr[i] != null)
+                                {
+                                    strsj = dr[i].ToString();
+                                }
+                                ICell cell = irow.CreateCell(iCellIndex);
+                                cell.SetCellValue(strsj);
+                                cell.CellStyle = cellStyle;
+                                iCellIndex++;
+                            }
+                        }
+                        iRowIndex++;
+                    }
+
+                    //自适应列宽度
+                    for (int i = 0; i < icolIndex; i++)
+                    {
+                        sheet.AutoSizeColumn(i);
+                    }
+
+                    using (MemoryStream ms = new MemoryStream())
+                    {
+                        workbook.Write(ms);
+
+                        HttpContext curContext = HttpContext.Current;
+
+
+                        // 设置编码和附件格式
+                        curContext.Response.ContentType = "application/vnd.ms-excel";
+                        curContext.Response.ContentEncoding = Encoding.UTF8;
+                        curContext.Response.Charset = "";
+                        curContext.Response.AppendHeader("Content-Disposition",
+                            "attachment;filename=" + HttpUtility.UrlEncode(Name + ".xls", Encoding.UTF8));
+
+                        curContext.Response.BinaryWrite(ms.GetBuffer());
+
+                        workbook = null;
+                        ms.Close();
+                        ms.Dispose();
+
+                        curContext.Response.End();
+                    }
+                }
+                return "";
+            }
+            catch
+            {
+                return "导出失败！";
+            }
+        }
+        #endregion
     }
 }