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我想做验证（必填字段、长度验证和条款和条件检查，还有文件大小检查......在文件提交到网络服务器之前）

现在文件上传到网络服务器，之后（对于一个 2GB 的文件，它需要例如 20 分钟）如果我将“标题”等字段留空，我会收到错误消息。

之前如何进行验证？

看法：

@using (Html.BeginForm("FileUpload", "Home")){
    @Html.AntiForgeryToken()
    @Html.ValidationSummary()

    <fieldset>
        <legend>Video Upload</legend>

        <ol>
            <li>
                @Html.LabelFor(m => m.Title)
                @Html.TextBoxFor(m => m.Title, new {@Class = "action add", title="Enter your video/movie title here." })
            </li>
            <li>
                @Html.LabelFor(m => m.Description)
                @Html.TextAreaFor(m => m.Description, new Dictionary<string,object>{{"rows","3"}})
            </li>
            <li>
                @Html.CheckBoxFor(m => m.AGB)
                @Html.LabelFor(m => m.AGB, new {@class = "checkbox" })
            </li>
        </ol>

        <input type="file" id="fileCntrl" name="uploadFile" accept="video/*" data-val="true" data-val-required="File is required"/>
        <button type="submit" id="btnUpload" value="Upload Video" title="Upload Video" class="btn">Upload Video</button>

    </fieldset>
}

模型：

public class UploadModel
{
    [Required]
    [StringLength(100)], ErrorMessage = "The {0} must be at least {2} characters long.", MinimumLength = 2)]
    [Display(Name = "* Title:")]
    public string Title { get; set; }

    [StringLength(300)], ErrorMessage = "The {0} must be at least {2} characters long.", MinimumLength = 2)]
    [Display(Name = "Description:")]
    public string Description { get; set; }

    [Required]
    [Display(Name = "* I agree to mowee.tv Terms And Conditions.")]
    public bool AGB { get; set; }
}

控制器：

[HttpPost]
[AllowAnonymous]
[AcceptVerbs(HttpVerbs.Post)]
public virtual ActionResult FileUpload(HttpPostedFileBase uploadFile, UploadModel myModel)
{
    if (ModelState.IsValid) // **<== i arrive here after file has been submitted to webserver**
    {
        try
        {
            if (myModel.AGB == false)
            {
                ModelState.AddModelError("", "Please read our Terms and Conditions");
                return View("Index", myModel);
            }

            if (uploadFile != null && uploadFile.ContentLength > 0)
            {
                //write some data to database
                //send mail with link for uploaded file
            }
            else
            {
                ModelState.AddModelError("", "Please choose a video/movie.");
                return View("Index", myModel);
            }
        }
        catch (Exception ex)
        {
            ModelState.AddModelError("", "An error occured. Try again.");
            return View("ErrorUpload", myModel);
        }

        //model is valid
        return View("SuccessUpload", myModel);
    }
    // model is not valid
    return View("Index", myModel);
}
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1 回答 1

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出于安全原因，无法通过 JavaScript 访问文件字段，因此客户端验证不会对它们起作用。您需要在服务器上执行验证。

于 2013-04-29T19:35:15.157 回答