怎样从gridview导入数据到excel里

Question

我不知道之间的代码是什么

Answer 1

   /// <summary>
        /// 输出到Excel
        /// </summary>
        /// <param name="myDGV">DataGridView</param>
        void saveExcel(DataGridView myDGV)
        {
            string saveFileName = "";
            //bool fileSaved = false;
            SaveFileDialog saveDialog = new SaveFileDialog();
            saveDialog.DefaultExt = "xls";
            saveDialog.Filter = "Excel文件|*.xls";
            saveDialog.FileName = "File"+DateTime.Now.Year.ToString()+DateTime.Now.Month.ToString()+DateTime.Now.Day.ToString()+DateTime.Now.Hour.ToString()+DateTime.Now.Minute.ToString()+DateTime.Now.Second.ToString()+"s";
            saveDialog.ShowDialog();
            saveFileName = saveDialog.FileName;
            if (saveFileName.IndexOf(":") < 0) return; //被点了取消 
            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");
                return;
            }            Microsoft.Office.Interop.Excel.Workbooks workbooks = xlApp.Workbooks;
            Microsoft.Office.Interop.Excel.Workbook workbook = workbooks.Add(Microsoft.Office.Interop.Excel.XlWBATemplate.xlWBATWorksheet);
            Microsoft.Office.Interop.Excel.Worksheet worksheet = (Microsoft.Office.Interop.Excel.Worksheet)workbook.Worksheets[1];//取得sheet1             //写入标题
            for (int i = 0; i < myDGV.ColumnCount; i++)
            {
                worksheet.Cells[1, i + 1] = myDGV.Columns[i].HeaderText;
            }
            //写入数值
            for (int r = 1; r < myDGV.Rows.Count - 1; r++)
            {
                for (int i = 0; i < myDGV.ColumnCount; i++)
                {                    string str = myDGV.Rows[r].Cells[i].Value.ToString();
                    if (string.IsNullOrEmpty(str))
                    {
                        str = " ";
                    }                    worksheet.Cells[r + 1, i + 1] = str;
                }
                System.Windows.Forms.Application.DoEvents();
            }
            worksheet.Columns.EntireColumn.AutoFit();//列宽自适应
            //if (Microsoft.Office.Interop.cmbxType.Text != "Notification")
            //{
            //    Excel.Range rg = worksheet.get_Range(worksheet.Cells[2, 2], worksheet.Cells[ds.Tables[0].Rows.Count + 1, 2]);
            //    rg.NumberFormat = "00000000";
            //}            if (saveFileName != "")
            {
                try
                {
                    workbook.Saved = true;
                    workbook.SaveCopyAs(saveFileName);
                    //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);
                }            }
            //else
            //{
            //    fileSaved = false;
            //}
            xlApp.Quit();
            GC.Collect();//强行销毁 
            // if (fileSaved && System.IO.File.Exists(saveFileName)) System.Diagnostics.Process.Start(saveFileName); //打开EXCEL
            MessageBox.Show(saveFileName + "保存成功", "提示", MessageBoxButtons.OK);
        }