将数据表导出到Excel时出错

Question

我正在使用下面的代码使用Microsoft.Office.Interop.Excel导出Excel。 [Office 2003女士]。 我需要导出大约150000行，最多可以包含300列。

但是在Get_Range上出现错误。 [适用于50000行40列的罚款]

public static void ExportToExcel(DataTable dt, string outputPath)
    {
        try
        {
            // Create the Excel Application object
            ApplicationClass excelApp = new ApplicationClass();

            // Create a new Excel Workbook
            Workbook excelWorkbook = excelApp.Workbooks.Add(Type.Missing);

            int sheetIndex = 0;

            // Copy each DataTable


            // Copy the DataTable to an object array
            object[,] rawData = new object[dt.Rows.Count + 1, dt.Columns.Count];

            // Copy the column names to the first row of the object array
            for (int col = 0; col < dt.Columns.Count; col++)
            {
                rawData[0, col] = dt.Columns[col].ColumnName;
            }

            // Copy the values to the object array
            for (int col = 0; col < dt.Columns.Count; col++)
            {
                for (int row = 0; row < dt.Rows.Count; row++)
                {
                    rawData[row + 1, col] = dt.Rows[row].ItemArray[col];
                }
            }

            // Calculate the final column letter
            string finalColLetter = string.Empty;
            string colCharset = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
            int colCharsetLen = colCharset.Length;

            if (dt.Columns.Count > colCharsetLen)
            {
                finalColLetter = colCharset.Substring(
                    (dt.Columns.Count - 1) / colCharsetLen - 1, 1);
            }

            finalColLetter += colCharset.Substring(
                    (dt.Columns.Count - 1) % colCharsetLen, 1);

            // Create a new Sheet
            Worksheet excelSheet = (Worksheet)excelWorkbook.Sheets.Add(
                excelWorkbook.Sheets.get_Item(++sheetIndex),
                Type.Missing, 1, XlSheetType.xlWorksheet);

            excelSheet.Name = "data";

            // Fast data export to Excel
            string excelRange = string.Format("A1:{0}{1}",
                finalColLetter, dt.Rows.Count + 1);

           //excelSheet.get_Range(
            excelSheet.get_Range(excelRange, Type.Missing).Value2 = rawData;

            // Mark the first row as BOLD
            ((Range)excelSheet.Rows[1, Type.Missing]).Font.Bold = true;


            // Save and Close the Workbook
            excelWorkbook.SaveAs("C:\\Dashsrv\\data.Xls", XlFileFormat.xlWorkbookNormal, Type.Missing,
                Type.Missing, Type.Missing, Type.Missing, XlSaveAsAccessMode.xlExclusive,
                Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing);
            excelWorkbook.Close(true, Type.Missing, Type.Missing);
            excelWorkbook = null;

            // Release the Application object
            excelApp.Quit();
            excelApp = null;

            // Collect the unreferenced objects
            GC.Collect();
            GC.WaitForPendingFinalizers();
            MessageBox.Show("File created at");
        }
        catch(Exception ex)
        {
            MessageBox.Show(ex.Message);
        }

    }

在下面的代码行出现错误

[{“来自HRESULT的异常：0x800A03EC”}] excelSheet.get_Range（excelRange，Type.Missing）.Value2 = rawData;

Get_Range()对行/列有一些限制吗？

据我所知，对于MS Office 2003，列的限制为256，不确定行是否受限。

谢谢

Answer 1

Excel 2003在一个工作表（ 规范 ）中最多可以有65536行

Excel 2007及更高版本可以具有1048576行（​​规范： Excel 2007 ， Excel 2010和Excel 2013 ）

Answer 2

Excel 2003行限制为65,536- http://support.microsoft.com/kb/120596