Question

型号：

public class EmailAttachment  
{  
    public string FileName { get; set; }  
    public string FileType { get; set; }  
    public int FileSize { get; set; }  
    public Stream FileData { get; set; }  
}  

public class ContactEmail: IDataErrorInfo  
{  
    public string Name { get; set; }  
    public string Email { get; set; }  
    public string Message { get; set; }  
    public EmailAttachment Attachment { get; set; }  

    public string Error { get { return null; } }  

    public string this[string propName]  
    {
        get  
        {  
            if (propName == "Name" && String.IsNullOrEmpty(Name))  
                return "Please Enter your Name";  
            if (propName == "Email"){  
                if(String.IsNullOrEmpty(Email))  
                    return "Please Provide an Email Address";  
                else if(!Regex.IsMatch(Email, ".+\\@.+\\..+"))  
                    return "Please Enter a valid email Address";  
            }  

            if (propName == "Message" && String.IsNullOrEmpty(Message))  
                return "Please Enter your Message";  
            return null;  
        }  
    }
}

我的控制器文件

[AcceptVerbs(HttpVerbs.Post)]  
public ActionResult Con(ContactEmail ce, HttpPostedFileBase file)  
{  
    return View();  
}

现在问题是从表格我得到名称，电子邮件，消息和上传的文件。我可以使用公共字符串[string propName]自动为名称，电子邮件，消息获取验证错误。如果Attachment.FileSize＆gt;如何显示验证错误？ 10000？如果我在其中编写代码 public string this [string propName]
我alwasy得到附件null。如何填写ContactEmail的附件对象，以便我可以管理同一地点的所有错误？

Answer 1

您可以通过调用UploadFiles（表单，“folderForFiles）;

上传

public void UploadFiles(FormCollection form, string folder)
    {
        foreach (string file in Request.Files)
        {
            HttpPostedFileBase hpf = Request.Files[file];

            if (hpf.ContentLength == 0)
            {
                form[file] = null;
            }
            else
            {
                var filename = hpf.FileName.Replace(" ", "_").Replace(".", DateTime.Now.Date.Ticks + ".");

                UploadFileName = filename;
                hpf.SaveAs(Server.MapPath("~/Content/" + folder + "/" + filename));

                form[file] = UploadFileName;
            }

        }

    }

将hpf.ContentLength添加到变量并在其大小上运行if会很容易

ModelState.AddModelError("","File is too large to be uploaded");
return;

似乎模型状态仍然有效，然后会显示在您的错误摘要中只需修改示例代码即可添加自己的限制和检查。

输入hpf。然后应该给你所有可用于扩展的扩展等

更好的显示文件上传错误的方法？

1 个答案: