将datagridview导出到Excel脚本中的错误

Question

我遇到了一个新问题，我想将一个datagridview导出到excel并搜索脚本。我找到的脚本在这一行中给我一个错误。

＆＃34; ExcelApp.Cells [i + 2，j + 1] = dgvTabelle.Rows [i] .Cells [j] .Value.ToString（）;＆＃34;

整个脚本看起来像这样！

            SaveFileDialog sfd = new SaveFileDialog();
        sfd.InitialDirectory = "C:";
        sfd.Filter = "Excel File|* .xlsx";
        sfd.FileName = "Flugxyz";
        sfd.Title = "Speichern von Flugdatei";

        if (sfd.ShowDialog() == System.Windows.Forms.DialogResult.OK)
        {
            Microsoft.Office.Interop.Excel.Application ExcelApp = new Microsoft.Office.Interop.Excel.Application();
            ExcelApp.Application.Workbooks.Add(Type.Missing);

            //Storing header part in Excel
            for (int i = 1; i < dgvTabelle.Columns.Count + 1; i++)
            {
                ExcelApp.Cells[1, i] = dgvTabelle.Columns[i - 1].HeaderText;
            }

            //Storing Each row and column value to excel sheet
            for (int i = 0; i < dgvTabelle.Rows.Count; i++)
            {
                for (int j = 0; j< dgvTabelle.Columns.Count; j ++)
                {
                    ExcelApp.Cells[i + 2, j + 1] = dgvTabelle.Rows[i].Cells[j].Value.ToString();
                }
            }
            ExcelApp.ActiveWorkbook.SaveCopyAs(sfd.FileName.ToString());
            ExcelApp.ActiveWorkbook.Saved = true;
            ExcelApp.Quit();