image is not uploading

   string strImageName = TextBox3.Text.ToString(); 
            
 if (FileUpload1.PostedFile != null && 

     FileUpload1.PostedFile.FileName != "")

  {

   byte[] imageSize = new byte

                 [FileUpload1.PostedFile.ContentLength];

  HttpPostedFile uploadedImage = FileUpload1.PostedFile;

  uploadedImage.InputStream.Read

     (imageSize, 0, (int)FileUpload1.PostedFile.ContentLength);
 

 // Create SQL Connection 

  con = new SqlConnection(connstring);

 

 

 // Create SQL Command 

 

 SqlCommand cmd = new SqlCommand();

 cmd.CommandText = "INSERT INTO Images(ImageName,Image)" +

                   " VALUES (@ImageName,@Image)";

 cmd.CommandType = CommandType.Text;

 cmd.Connection = con;



 SqlParameter ImageName = new SqlParameter

                     ("@ImageName", SqlDbType.VarChar, 50);

 ImageName.Value = strImageName.ToString();

 cmd.Parameters.Add(ImageName);

 

 SqlParameter UploadedImage = new SqlParameter

               ("@Image", SqlDbType.Image, imageSize.Length);

 UploadedImage.Value = imageSize;

 cmd.Parameters.Add(UploadedImage);

 con.Open();

 int result = cmd.ExecuteNonQuery();

 con.Close();

 if (result > 0)

 Label1.Text = "File Uploaded";

 Image1.DataBind();

 }
}