Question

目前，我有一些代码能够创建文件，创建新工作表，更改活动工作表，但它不会写入单元格。以下是我的代码：

var excelApp = new Excel.Application
{
    Visible = false,
    ScreenUpdating = false
};

object misValue = System.Reflection.Missing.Value;

var workbook = excelApp.Workbooks.Add(misValue);
var worksheets = workbook.Worksheets;
var worksheet = (Excel.Worksheet)workbook.ActiveSheet;

worksheet.Cells[3, 3].Value2 = "123"; //This is the part where I'm struggling

workbook.SaveAs(completePathToFile, Excel.XlFileFormat.xlWorkbookNormal);
workbook.Close();

目前情况如何，它抛出：

Microsoft.CSharp.RuntimeBinder.RuntimeBinderException: 'Cannot perform runtime binding on a null reference'

当我试图将其值设置为非null时，为什么它会抛出这一点毫无意义。我也尝试删除Value2并直接设置单元格。错误消失了，但它仍然没有写入.xls文件。

Answer 1

尝试

     m_objBook = (Excel._Workbook)(m_objBooks.Add(m_objOpt));

        (Excel.Workbooks)m_objExcel.Workbooks;
        //Start a new workbook in Excel.
        m_objExcel = new Excel.Application();
        //Add data to cells in the first worksheet in the new workbook.
            m_objSheets = (Excel.Sheets)m_objBook.Worksheets;
             m_objSheet = (Excel._Worksheet)(m_objSheets.get_Item(1));
             m_objRange = m_objSheet.Range["A1", m_objOpt);
             m_objRange.Value = "Last Name";
             m_objRange = m_objSheet.Range["B1", m_objOpt);
             m_objRange.Value = "First Name";
             m_objRange = m_objSheet.Range["A2", m_objOpt);
             m_objRange.Value = "Doe";
             m_objRange = m_objSheet.Range["B2", m_objOpt);
             m_objRange.Value = "John";

              //Apply bold to cells A1:B1.
             m_objRange = m_objSheet.Range["A1", "B1");
             m_objFont = m_objRange.Font;
             m_objFont.Bold = true;

              //Save the Workbook and quit Excel.
             m_objBook.SaveAs(m_strSampleFolder + "Book1.xls", m_objOpt, m_objOpt,
                 m_objOpt, m_objOpt, m_objOpt, Excel.XlSaveAsAccessMode.xlNoChange,
                 m_objOpt, m_objOpt, m_objOpt, m_objOpt);
             m_objBook.Close(false, m_objOpt, m_objOpt);
             m_objExcel.Quit();

如何在C＃中写入.xls文件格式？

1 个答案: