不支持给定路径的格式 - IE8

Question

尝试上传excel文件。该代码在chrome＆amp; amp; Firefox浏览器。它在IE8中引发了上述错误。我该如何解决这个问题。

private const string ExcelUploadPath = "~/UploadedFiles/";

private void SomeFunction()
{
  string dirPath = Server.MapPath(ExcelUploadPath);      
  string ErrorMsg = SaveUploadedFile(fupCtrl, dirPath)
}

private string SaveUploadedFile(FileUpload fupCtrl, string dirPath)
    {
        try
        {
            string sFileName = "";
            Random ranObj = null;
            int nRandomNum = 0;
            ranObj = new Random();
            nRandomNum = ranObj.Next();
            sFileName = fupCtrl.PostedFile.FileName;
            sFileName = sFileName.Substring(0, sFileName.LastIndexOf(".") - 1);
            sFileName = sFileName + "_" + nRandomNum.ToString();
            sFileName = sFileName + 
                 fupCtrl.FileName.Substring(fupCtrl.FileName.LastIndexOf("."));

            fupCtrl.SaveAs(dirPath + sFileName); //exception here

            return sFileName;            
        }
        catch (Exception ex)
        {
          return ex.Message.ToString();       
        }        
    }

Answer 1

FileUpload.PostedFile.FileName返回客户端上的完整文件名（包括路径）

Path class提供了许多方法来处理表示路径的字符串。

  sFileName = Path.GetFileNameWithoutExtension(fupCtrl.PostedFile.FileName);
  sFileName += "_" + nRandomNum.ToString();
  sFileName += Path.GetExtension(fupCtrl.FileName);
  fupCtrl.SaveAs(Path.Combine(dirPath, sFileName));

Answer 2

试试这个，它可以起作用。

 private const string ExcelUploadPath = "~//UploadedFiles//";

Answer 3

HttpPostedFile postedFile = context.Request.Files[FileObject];                
                string filename = Path.GetFileNameWithoutExtension(postedFile.FileName);