NPOI 生成Excel

private void btnSave_Click(object sender, EventArgs e)

        {

            if (string.IsNullOrEmpty(txt_FilePath.Text) || txt_FilePath.Text.Trim().Substring(txt_FilePath.Text.Trim().Length - ) != ".xls")

            {

                MessageBox.Show("请选择要导出文件的路径和文件名,例如d:\\file.xls！", "提示信息", MessageBoxButtons.OK, MessageBoxIcon.Information);

                return;

            }

            try

            {

                HSSFWorkbook book = new HSSFWorkbook();

                //表格样式

                //header

                HSSFCellStyle headercs = (HSSFCellStyle)book.CreateCellStyle();

                headercs.VerticalAlignment = VerticalAlignment.Center;

                headercs.Alignment = NPOI.SS.UserModel.HorizontalAlignment.Center;

                headercs.BorderBottom = NPOI.SS.UserModel.BorderStyle.Thin;

                headercs.BorderTop = NPOI.SS.UserModel.BorderStyle.Thin;

                headercs.BorderLeft = NPOI.SS.UserModel.BorderStyle.Thin;

                headercs.BorderRight = NPOI.SS.UserModel.BorderStyle.Thin;

                headercs.BottomBorderColor = NPOI.HSSF.Util.HSSFColor.Black.Index;

                headercs.LeftBorderColor = NPOI.HSSF.Util.HSSFColor.Black.Index;

                headercs.RightBorderColor = NPOI.HSSF.Util.HSSFColor.Black.Index;

                headercs.TopBorderColor = NPOI.HSSF.Util.HSSFColor.Black.Index;

                HSSFFont headerFont = (HSSFFont)book.CreateFont();

                headerFont.FontHeightInPoints = ;

                headerFont.Color = HSSFColor.Black.Index;

                headerFont.FontName = "宋体";

                headercs.SetFont(headerFont);

                //文本 Style

                HSSFCellStyle stringcs = (HSSFCellStyle)book.CreateCellStyle();

                stringcs.VerticalAlignment = NPOI.SS.UserModel.VerticalAlignment.Center;

                stringcs.Alignment = NPOI.SS.UserModel.HorizontalAlignment.Left;

                stringcs.BorderBottom = NPOI.SS.UserModel.BorderStyle.Thin;

                stringcs.BorderTop = NPOI.SS.UserModel.BorderStyle.Thin;

                stringcs.BorderLeft = NPOI.SS.UserModel.BorderStyle.Thin;

                stringcs.BorderRight = NPOI.SS.UserModel.BorderStyle.Thin;

                stringcs.BottomBorderColor = NPOI.HSSF.Util.HSSFColor.Black.Index;

                stringcs.LeftBorderColor = NPOI.HSSF.Util.HSSFColor.Black.Index;

                stringcs.RightBorderColor = NPOI.HSSF.Util.HSSFColor.Black.Index;

                stringcs.TopBorderColor = NPOI.HSSF.Util.HSSFColor.Black.Index;

                //数字style

                HSSFCellStyle decimalcs = (HSSFCellStyle)book.CreateCellStyle();

                decimalcs.DataFormat = book.CreateDataFormat().GetFormat("#0");

                decimalcs.VerticalAlignment = NPOI.SS.UserModel.VerticalAlignment.Center;

                decimalcs.Alignment = NPOI.SS.UserModel.HorizontalAlignment.Right;

                decimalcs.BorderBottom = NPOI.SS.UserModel.BorderStyle.Thin;

                decimalcs.BorderTop = NPOI.SS.UserModel.BorderStyle.Thin;

                decimalcs.BorderLeft = NPOI.SS.UserModel.BorderStyle.Thin;

                decimalcs.BorderRight = NPOI.SS.UserModel.BorderStyle.Thin;

                decimalcs.BottomBorderColor = NPOI.HSSF.Util.HSSFColor.Black.Index;

                decimalcs.LeftBorderColor = NPOI.HSSF.Util.HSSFColor.Black.Index;

                decimalcs.RightBorderColor = NPOI.HSSF.Util.HSSFColor.Black.Index;

                decimalcs.TopBorderColor = NPOI.HSSF.Util.HSSFColor.Black.Index;

                //数字style

                HSSFCellStyle decimalcs1 = (HSSFCellStyle)book.CreateCellStyle();

                decimalcs1.DataFormat = book.CreateDataFormat().GetFormat("#0.00");

                decimalcs1.VerticalAlignment = NPOI.SS.UserModel.VerticalAlignment.Center;

                decimalcs1.Alignment = NPOI.SS.UserModel.HorizontalAlignment.Right;

                decimalcs1.BorderBottom = NPOI.SS.UserModel.BorderStyle.Thin;

                decimalcs1.BorderTop = NPOI.SS.UserModel.BorderStyle.Thin;

                decimalcs1.BorderLeft = NPOI.SS.UserModel.BorderStyle.Thin;

                decimalcs1.BorderRight = NPOI.SS.UserModel.BorderStyle.Thin;

                decimalcs1.BottomBorderColor = NPOI.HSSF.Util.HSSFColor.Black.Index;

                decimalcs1.LeftBorderColor = NPOI.HSSF.Util.HSSFColor.Black.Index;

                decimalcs1.RightBorderColor = NPOI.HSSF.Util.HSSFColor.Black.Index;

                decimalcs1.TopBorderColor = NPOI.HSSF.Util.HSSFColor.Black.Index;

                //百分数style

                HSSFCellStyle percentagecs = (HSSFCellStyle)book.CreateCellStyle();

                //percentagecs.DataFormat = book.CreateDataFormat().GetFormat("##%");

                percentagecs.VerticalAlignment = NPOI.SS.UserModel.VerticalAlignment.Center;

                percentagecs.Alignment = NPOI.SS.UserModel.HorizontalAlignment.Right;

                percentagecs.BorderBottom = NPOI.SS.UserModel.BorderStyle.Thin;

                percentagecs.BorderTop = NPOI.SS.UserModel.BorderStyle.Thin;

                percentagecs.BorderLeft = NPOI.SS.UserModel.BorderStyle.Thin;

                percentagecs.BorderRight = NPOI.SS.UserModel.BorderStyle.Thin;

                percentagecs.BottomBorderColor = NPOI.HSSF.Util.HSSFColor.Black.Index;

                percentagecs.LeftBorderColor = NPOI.HSSF.Util.HSSFColor.Black.Index;

                percentagecs.RightBorderColor = NPOI.HSSF.Util.HSSFColor.Black.Index;

                percentagecs.TopBorderColor = NPOI.HSSF.Util.HSSFColor.Black.Index;

                HSSFSheet sheet2 = (HSSFSheet)book.CreateSheet("病区排程明细");

                //列名

                string[] headerString = { "类", "病区", "床号", "病历号", "姓名", "表单号", "检查科室", "检查内容", "排程日期", "开单日期", "状态" };

                HSSFRow row0_2 = (HSSFRow)sheet2.CreateRow();

                row0_2.CreateCell().SetCellValue("病区排程明细");

                row0_2.GetCell().CellStyle = headercs;

                sheet2.AddMergedRegion(new CellRangeAddress(, , , headerString.Length - ));

                HSSFRow row1_2 = (HSSFRow)sheet2.CreateRow();

                for (int i = ; i < headerString.Length; i++)

                {

                    row1_2.CreateCell(i).SetCellValue(headerString[i]);

                    row1_2.GetCell(i).CellStyle = headercs;

                }

                for (int i = ; i < dtInfo.Rows.Count; i++)

                {

                    HSSFRow row = (HSSFRow)sheet2.CreateRow(i + );

                    //类

                    row.CreateCell().SetCellValue(dtInfo.Rows[i].Cells[].Value.ToString());

                    row.GetCell().CellStyle = stringcs;

                    //病区,

                    row.CreateCell().SetCellValue(dtInfo.Rows[i].Cells[].Value.ToString());

                    row.GetCell().CellStyle = stringcs;

                    //床号,

                    row.CreateCell().SetCellValue(dtInfo.Rows[i].Cells[].Value.ToString());

                    row.GetCell().CellStyle = stringcs;

                    //病历号,

                    row.CreateCell().SetCellValue(dtInfo.Rows[i].Cells[].Value.ToString());

                    row.GetCell().CellStyle = stringcs;

                    //姓名,

                    row.CreateCell().SetCellValue(dtInfo.Rows[i].Cells[].Value.ToString());

                    row.GetCell().CellStyle = stringcs;

                    //表单号

                    row.CreateCell().SetCellValue(dtInfo.Rows[i].Cells[].Value.ToString());

                    row.GetCell().CellStyle = stringcs;

                    //检查科室,

                    row.CreateCell().SetCellValue(dtInfo.Rows[i].Cells[].Value.ToString());

                    row.GetCell().CellStyle = stringcs;

                    //检查内容,

                    row.CreateCell().SetCellValue(dtInfo.Rows[i].Cells[].Value.ToString());

                    row.GetCell().CellStyle = stringcs;

                    //排程日期,

                    row.CreateCell().SetCellValue(dtInfo.Rows[i].Cells[].Value.ToString());

                    row.GetCell().CellStyle = stringcs;

                    //申请单号,

                    row.CreateCell().SetCellValue(dtInfo.Rows[i].Cells[].Value.ToString());

                    row.GetCell().CellStyle = stringcs;

                    //状态,

                    row.CreateCell().SetCellValue(dtInfo.Rows[i].Cells[].Value.ToString());

                    row.GetCell().CellStyle = stringcs;

                }

                sheet2.SetColumnWidth(,  * );

                sheet2.SetColumnWidth(,  * );

                sheet2.SetColumnWidth(,  * );

                sheet2.SetColumnWidth(,  * );

                sheet2.SetColumnWidth(,  * );

                sheet2.SetColumnWidth(,  * );

                sheet2.SetColumnWidth(,  * );

                sheet2.SetColumnWidth(,  * );

                sheet2.SetColumnWidth(,  * );

                sheet2.SetColumnWidth(,  * );

                sheet2.SetColumnWidth(,  * );

                HSSFSheet sheetC = (HSSFSheet)book.CreateSheet("取消排程明细");

                string[] headerStringC = { "排程日期", "取消日期", "类", "病区", "床号", "病历号", "姓名", "检查科室", "检查内容", "备注" };

                HSSFRow row0_2C = (HSSFRow)sheetC.CreateRow();

                row0_2C.CreateCell().SetCellValue("取消排程明细");

                row0_2C.GetCell().CellStyle = headercs;

                sheetC.AddMergedRegion(new CellRangeAddress(, , , headerStringC.Length - ));

                HSSFRow row1_2C = (HSSFRow)sheetC.CreateRow();

                for (int i = ; i < headerStringC.Length; i++)

                {

                    row1_2C.CreateCell(i).SetCellValue(headerStringC[i]);

                    row1_2C.GetCell(i).CellStyle = headercs;

                }

                for (int i = ; i < dtInfoC.Rows.Count; i++)

                {

                    HSSFRow row = (HSSFRow)sheetC.CreateRow(i + );

                    //排程日期

                    row.CreateCell().SetCellValue(dtInfoC.Rows[i].Cells[].Value.ToString());

                    row.GetCell().CellStyle = stringcs;

                    //取消日期,

                    row.CreateCell().SetCellValue(dtInfoC.Rows[i].Cells[].Value.ToString());

                    row.GetCell().CellStyle = stringcs;

                    //类,

                    row.CreateCell().SetCellValue(dtInfoC.Rows[i].Cells[].Value.ToString());

                    row.GetCell().CellStyle = stringcs;

                    //病区,

                    row.CreateCell().SetCellValue(dtInfoC.Rows[i].Cells[].Value.ToString());

                    row.GetCell().CellStyle = stringcs;

                    //床号,

                    row.CreateCell().SetCellValue(dtInfoC.Rows[i].Cells[].Value.ToString());

                    row.GetCell().CellStyle = stringcs;

                    //病历号

                    row.CreateCell().SetCellValue(dtInfoC.Rows[i].Cells[].Value.ToString());

                    row.GetCell().CellStyle = stringcs;

                    //姓名,

                    row.CreateCell().SetCellValue(dtInfoC.Rows[i].Cells[].Value.ToString());

                    row.GetCell().CellStyle = stringcs;

                    //检查科室,

                    row.CreateCell().SetCellValue(dtInfoC.Rows[i].Cells[].Value.ToString());

                    row.GetCell().CellStyle = stringcs;

                    //检查内容,

                    row.CreateCell().SetCellValue(dtInfoC.Rows[i].Cells[].Value.ToString());

                    row.GetCell().CellStyle = stringcs;

                    //备注,

                    row.CreateCell().SetCellValue(dtInfoC.Rows[i].Cells[].Value.ToString());

                    row.GetCell().CellStyle = stringcs;

                }

                sheetC.SetColumnWidth(,  * );

                sheetC.SetColumnWidth(,  * );

                sheetC.SetColumnWidth(,  * );

                sheetC.SetColumnWidth(,  * );

                sheetC.SetColumnWidth(,  * );

                sheetC.SetColumnWidth(,  * );

                sheetC.SetColumnWidth(,  * );

                sheetC.SetColumnWidth(,  * );

                sheetC.SetColumnWidth(,  * );

                sheetC.SetColumnWidth(,  * );

                //判断是否安装EXCEL，若是已安装，则呼叫EXCEL打开

                Type officeType = Type.GetTypeFromProgID("Excel.Application");

                if (officeType == null)

                {

                    SaveFileDialog Sfd = new SaveFileDialog();

                    Sfd.Filter = "Excel文件(*.xls)|*.xls";

                    Sfd.FileName = "SCH_UCF_0090" + DateTime.Now.ToString("yyyyMMddHHmmss") + ".xls";

                    if (Sfd.ShowDialog() == System.Windows.Forms.DialogResult.OK)

                    {

                        FileStream file3 = new FileStream(Sfd.FileName, FileMode.Create);

                        book.Write(file3);

                        file3.Close();

                        book = null;

                    }

                }

                else

                {

                    String tempPath = txt_FilePath.Text;

                    FileStream tmpxls = new FileStream(tempPath, FileMode.Create);

                    book.Write(tmpxls);

                    tmpxls.Close();

                    book = null;

                    Process.Start(tempPath);

                }

                //MessageHandling.ShowInfoMsg("CMMCMMB300", new String[] { "资料导出成功！" });

                //MessageBox.Show("资料导出成功！", "提示信息", MessageBoxButtons.OK, MessageBoxIcon.Information);

                this.Close();

            }

            catch (Exception ex)

            {

                //MessageHandling.ShowWarnMsg("CMMCMMB300", new String[] { ex.Message });

            }

        }

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