将日期时间导出到 excel

Question

我想将数据导出到 windows 表单应用程序中的 excel 文件，但是当我尝试导出日期时，格式发生了变化。我想使用格式 dd-MM-yyyy

            Excel.Application xlApp = new Microsoft.Office.Interop.Excel.Application();

        if (xlApp == null)
        {
            MessageBox.Show("Excel is not properly installed!!");
            return;
        }


        Excel.Workbook xlWorkBook;
        Excel.Worksheet xlWorkSheet;
        object misValue = System.Reflection.Missing.Value;

        xlWorkBook = xlApp.Workbooks.Add(misValue);
        xlWorkSheet = (Excel.Worksheet)xlWorkBook.Worksheets.get_Item(1);



        xlWorkSheet.Cells[1, 1].NumberFormat = "dd/mm/yyyy";
        xlWorkSheet.Cells[1, 1] = "19-02-2015";
        xlWorkSheet.Cells[2, 1] = "02-03-2015";
        xlWorkSheet.Cells[2, 1].NumberFormat = "dd/mm/yyyy";

        xlWorkBook.SaveAs("C:\Users\user\Desktop\Data.xls", Excel.XlFileFormat.xlWorkbookNormal, misValue, misValue, misValue, misValue, Excel.XlSaveAsAccessMode.xlExclusive, misValue, misValue, misValue, misValue, misValue);
        xlWorkBook.Close(true, misValue, misValue);
        xlApp.Quit();

        releaseObject(xlWorkSheet);
        releaseObject(xlWorkBook);
        releaseObject(xlApp);
    private void releaseObject(object obj)
    {
        try
        {
            System.Runtime.InteropServices.Marshal.ReleaseComObject(obj);
            obj = null;
        }
        catch (Exception ex)
        {
            obj = null;
            MessageBox.Show("Exception Occured while releasing object " + ex.ToString());
        }
        finally
        {
            GC.Collect();
        }
    }

excel 文件中的结果是： 19-2-2015 作为文本 02/03/2015 作为日期时间我用 excel 2013

那么如何将 12 日以上的日期导出到 excel 并给它们格式 mm/dd/jjjj

Answer 1

我建议您使用 "Text" 作为细胞类型。它将摆脱日期的自动格式更改。您可以使用以下代码：

xlWorkSheet.Cells[1, 1].NumberFormat = "@";

将日期时间导出到 excel

export datetime to excel

c#

date

datetime

export-to-excel