新鲜的MVC 3项目给了我奇怪的不显眼的验证脚本错误

Fresh MVC 3 project giving me wierd unobtrusive validation script error

本文关键字：不显眼 验证 脚本错误 MVC 项目 新鲜      更新时间：2023-09-26

我刚刚创建了一个新的MVC 3项目，并使用包管理器更新了所有已安装的软件包，但是我收到以下错误：

Microsoft JScript 运行时错误：无法设置属性的值 "不显眼"：对象为空或未定义

以下是相关代码：

<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="utf-8" />
        <title>@ViewBag.Title</title>
        <link href="@Url.Content("~/Content/Reset.css")" rel="stylesheet" type="text/css" />
        <link href="@Url.Content("~/Content/Site.css")" rel="stylesheet" type="text/css" />
        <script src="@Url.Content("~/Scripts/modernizr-1.7.min.js")" type="text/javascript"></script>
        <script src="@Url.Content("~/Scripts/jquery-1.7.2.min.js")" type="text/javascript"></script>
        <script src="@Url.Content("~/Scripts/jquery-ui-1.8.20.min.js")" type="text/javascript"></script>
        <script src="@Url.Content("~/Scripts/jquery.unobtrusive-ajax.min.js")" type="text/javascript"></script>
        <script src="@Url.Content("~/Scripts/jquery.validate.unobtrusive.js")" type="text/javascript"></script>
    </head>
    <body>
        @RenderBody()
    </body>
</html>

发生错误的区域的 JavaScript 代码段：

$jQval.unobtrusive = {
        adapters: [],
        parseElement: function (element, skipAttach) {
            /// <summary>
            /// Parses a single HTML element for unobtrusive validation attributes.
            /// </summary>
            /// <param name="element" domElement="true">The HTML element to be parsed.</param>
            /// <param name="skipAttach" type="Boolean">[Optional] true to skip attaching the
            /// validation to the form. If parsing just this single element, you should specify true.
            /// If parsing several elements, you should specify false, and manually attach the validation
            /// to the form when you are finished. The default is false.</param>
            var $element = $(element),
                form = $element.parents("form")[0],
                valInfo, rules, messages;
            if (!form) {  // Cannot do client-side validation without a form
                return;
            }...

有人可以告诉我为什么会发生此错误以及如何解决它吗？我只是缺少对所需脚本的引用吗？

谢谢亚历克斯。

您应该

在jquery.validate.unobtrusive.js之前包含jquery.validate.js 

    <script src="@Url.Content("~/Scripts/jquery.validate.js")" type="text/javascript"></script>
    <script src="@Url.Content("~/Scripts/jquery.validate.unobtrusive.js")" type="text/javascript"></script>

您还需要包含 JQuery 验证脚本

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