c#导出excel(转）

C#导出Excel文件实例代码

2010-08-03 14:10:36|  分类： 软件编程 |  标签：excel  c#导出excel   |字号大中小 订阅

/// <summary>
        /// 导出Excel的方法
        /// </summary>
        private void ExportExcel()
        {
            if (this.table == null) return;

bool fileSaved = false;
            SaveFileDialog sfdSaveFile = new SaveFileDialog();
            sfdSaveFile.DefaultExt = "xls";
            sfdSaveFile.Filter = "Excel文件(*.xls)|*.xls";
            sfdSaveFile.FileName = string.Empty;
            if (sfdSaveFile.ShowDialog() != DialogResult.OK) return;

//电脑Excel程序
            Microsoft.Office.Interop.Excel.Application xlApp = new Microsoft.Office.Interop.Excel.Application();
            if (xlApp == null)
            {
                MessageBox.Show("无法创建Excel对象，可能您的机子未安装Excel程序！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }
            //Workbook集合
            Microsoft.Office.Interop.Excel.Workbooks workbooks = xlApp.Workbooks;
            //Workbook
            Microsoft.Office.Interop.Excel.Workbook workbook = workbooks.Add(Microsoft.Office.Interop.Excel.XlWBATemplate.xlWBATWorksheet);
            //WorkSheet
            Microsoft.Office.Interop.Excel.Worksheet worksheet = (Microsoft.Office.Interop.Excel.Worksheet)workbook.Worksheets[1];//取得sheet1

//从DataTable中导出Excel   
            ////写入字段列标题
            //for (int i = 0; i < this.table.Columns.Count; i++)
            //{
            //    worksheet.Cells[1, i + 1] = this.table.Columns[i].ColumnName;
            //}
            ////写入数值
            //for (int r = 0; r < this.table.Rows.Count; r++)
            //{
            //    for (int i = 0; i < this.table.Columns.Count; i++)
            //    {
            //        worksheet.Cells[r + 2, i + 1] = this.table.Rows[r][i];
            //    }
            //    System.Windows.Forms.Application.DoEvents();
            //}

//从DataGridView中导出Excel
            //标题
            for (int c = 0; c < this.dgvList.Columns.Count; c++)
            {
                worksheet.Cells[1, c + 1] = this.dgvList.Columns[c].HeaderText;
                //设置单元格样式
                Microsoft.Office.Interop.Excel.Range range = (Microsoft.Office.Interop.Excel.Range)worksheet.Cells[1, c + 1];
                range.Font.Name = "华文楷体";//字体
                range.Font.Bold = true;//是否加粗
                range.Font.Italic = false;//是否倾斜
                range.Font.Size = 15;//字体大小
                //其他样式属性暂不知其中的值,不可用
                //range.Font.Background ="#fff000";//背景颜色
                //range.Font.Color ="#ff0000";//字颜色
                //range.Font.ColorIndex = 3;
                //range.Borders.Color = "#00ffee";//边框颜色

}
            //单元格内容
            for (int rowIndex = 0; rowIndex < this.dgvList.Rows.Count; rowIndex++)
            {
                for (int columnIndex = 0; columnIndex < this.dgvList.Columns.Count; columnIndex++)
                {
                    worksheet.Cells[rowIndex + 2, columnIndex + 1] = this.dgvList.Rows[rowIndex].Cells[columnIndex].Value.ToString();
                }
            }

worksheet.Columns.EntireColumn.AutoFit();//列宽自适应。
            //对指定列进行格式输出
            //Microsoft.Office.Interop.Excel.Range rg = worksheet.get_Range(worksheet.Cells[2, 1], worksheet.Cells[this.table.Rows.Count + 1, 1]);
            //rg.NumberFormat = "00000000";
            try
            {
                workbook.Saved = true;
                workbook.SaveCopyAs(sfdSaveFile.FileName);//保存复制到指定位置
                fileSaved = true;
            }
            catch (Exception ex)
            {
                fileSaved = false;
                MessageBox.Show("导出文件时出错,文件可能正被打开！\n" + ex.Message);
            }
            finally
            {
                workbooks.Close();
                xlApp.Quit();
                GC.Collect();//强行销毁
            }

if (fileSaved && System.IO.File.Exists(sfdSaveFile.FileName))
            {
                //System.IO.File.Open(sfdSaveFile.FileName, System.IO.FileMode.OpenOrCreate, System.IO.FileAccess.Read);
                System.Diagnostics.Process.Start(sfdSaveFile.FileName); //打开EXCEL
            }
        }