LINQ文件上传故障w EF

Question

我正在重构我的应用程序的一部分，以便在位字段中将文件保存到Db。在其他地方我使用了SqlCommand方法，但在这里我想要锁定我现有的EF程序，原因很多，原因并不明显。上传器工作正常，但它到达LINQ时会崩溃。当我查询Db时，而不是通常的＆＃34; 0x25504462D ...＆＃34;在比特字段中，我得到简单的＆＃34; 0x＆＃34;。试图查看该文件会收到一条消息＆＃34;文件为空＆＃34;。我接近了吗？其他字段插入完美，插入过程中没有错误。我如何＆＃34;饲料＆＃34;文件到fileUpload？请指教。

HttpPostedFileBase file = Request.Files[inputTagName];
FileUpload fileUpload = new FileUpload(); 

using (DBEntities ode = new DBEntities())
{
    (check if file exists...)
    else
    {  
        MyModels.File newfile = new MyModels.File();
        newfile.ID = Guid.NewGuid();
        newfile.Name = fn;
        newfile.VirtualPath = filePath;
        newfile.DateTimeUploaded = DateTime.Now;
        newfile.binFile = fileUpload.FileBytes;
        ode.AddToFiles(newfile);
    }
    ode.SaveChanges();
}

Answer 1

您可以尝试获取上传文件的`byte []'值。

HttpPostedFileBase file = Request.Files[inputTagName];
var uploadedFile = new byte[file.InputStream.Length];

using (DBEntities ode = new DBEntities())
{
    (check if file exists...)

    else
    {  
            MyModels.File newfile = new MyModels.File();
            newfile.ID = Guid.NewGuid();
            newfile.Name = fn;
            newfile.VirtualPath = filePath;
            newfile.DateTimeUploaded = DateTime.Now;
            newfile.binFile = uploadedFile;
            ode.AddToFiles(newfile);
    }

    ode.SaveChanges();
}

Answer 2

经过多次感叹和咬牙切齿（以及来自@denchu的鼓励）显然我需要阅读数据：

HttpPostedFileBase file = Request.Files[inputTagName];
 //var uploadedFile = new byte[file.InputStream.Length];
 BinaryReader br = new BinaryReader(file.InputStream);
 byte[] uploadedFile = br.ReadBytes(file.ContentLength);

   using (DBEntities ode = new DBEntities())
   {
      (check if file exists...)

   else
   {  
        MyModels.File newfile = new MyModels.File();
        newfile.ID = Guid.NewGuid();
        newfile.Name = fn;
        newfile.VirtualPath = filePath;
        newfile.DateTimeUploaded = DateTime.Now;
        newfile.binFile = uploadedFile;
        ode.AddToFiles(newfile);
  }

   ode.SaveChanges();
}