使用C#和Excel进行报表开发（七）－设置单元格的显示格式

http://www.cnblogs.com/fmxyw/archive/2008/09/09/1287853.html

在Excel中，如果某个单元格的内容是数字，且比较长，默认情况下，会变为科学计数发表示，例如：123456789123456000会被表示为1.2345E+17，为了能够将数字按照普通的格式完全表示，就需要设置单元格的属性 ，下面是例子代码：


Excel.Application m_objExcel = null;




Excel._Workbook m_objBook = null;




Excel.Sheets m_objSheets = null;




Excel._Worksheet m_objSheet = null;




Excel.Range m_objRange = null;






object m_objOpt = System.Reflection.Missing.Value;




try






{


m_objExcel = new Excel.Application();




m_objBook = m_objExcel.Workbooks.Open("e://1.xls", m_objOpt, m_objOpt, m_objOpt,


m_objOpt, m_objOpt, m_objOpt, m_objOpt, m_objOpt, m_objOpt, m_objOpt,


m_objOpt, m_objOpt, m_objOpt, m_objOpt);








m_objSheets = (Excel.Sheets)m_objBook.Worksheets;




m_objSheet = (Excel._Worksheet)(m_objSheets.get_Item(1));




m_objRange = m_objSheet.get_Range("A1", m_objOpt);




m_objRange.NumberFormatLocal = "#";








m_objBook.SaveAs("e://22.xls", m_objOpt, m_objOpt,




m_objOpt, m_objOpt, m_objOpt, Excel.XlSaveAsAccessMode.xlNoChange,




m_objOpt, m_objOpt, m_objOpt, m_objOpt, m_objOpt);


}




catch (Exception ex)






{




MessageBox.Show(ex.Message);




}




finally






{




m_objBook.Close(m_objOpt, m_objOpt, m_objOpt);




m_objExcel.Workbooks.Close();




m_objExcel.Quit();




System.Runtime.InteropServices.Marshal.ReleaseComObject(m_objBook);




System.Runtime.InteropServices.Marshal.ReleaseComObject(m_objExcel);




m_objBook = null;




m_objExcel = null;




GC.Collect();




}