找不到类型或名称空间名称"IClientValidatable" [英] The type or namespace name 'IClientValidatable' could not be found

问题描述

我使用以下链接在asp.net MVC应用程序中创建了一个自定义属性:

I have created a custom attribute in my asp.net MVC application using the following link:

但是我遇到以下错误:

错误52找不到类型或名称空间名称'IClientValidatable'(您是否缺少using指令或程序集引用?)
错误53找不到类型或名称空间名称'ModelClientValidationRule'(您是否缺少using指令或程序集引用?) 错误54找不到类型或名称空间名称'ModelMetadata'(您是否缺少using指令或程序集引用?) 错误55找不到类型或名称空间名称'ControllerContext'(您是否缺少using指令或程序集引用?)

Error 52 The type or namespace name 'IClientValidatable' could not be found (are you missing a using directive or an assembly reference?)
Error 53 The type or namespace name 'ModelClientValidationRule' could not be found (are you missing a using directive or an assembly reference?) Error 54 The type or namespace name 'ModelMetadata' could not be found (are you missing a using directive or an assembly reference?) Error 55 The type or namespace name 'ControllerContext' could not be found (are you missing a using directive or an assembly reference?)

我正在使用asp.net MVC 4 Beta.

I am using asp.net MVC 4 beta.

我试图将asp.net.MVC的引用添加到项目中，但是在添加引用对话框中不可用.

I tried to add reference of asp.net.MVC to the project but it is not available in add reference dialogue.

请建议如何解决

推荐答案

确保已将using System.Web.Mvc;添加到文件顶部，该文件是定义此类的名称空间.

Make sure you have added using System.Web.Mvc; to the top of your file which is the namespace in which this class is defined.

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