Question

我已创建自定义验证属性

[AttributeUsage(AttributeTargets.Field | AttributeTargets.Property, AllowMultiple = false, Inherited = true)]
    public sealed class ValidateDublicateNameAttribute : ValidationAttribute, IClientValidatable
    {
        private const string _defaultErrorMessage = "Library with title {0} is already exist";
        private UnitOfWork unit = new UnitOfWork();

        public ValidateDublicateNameAttribute()
            : base(_defaultErrorMessage)
        {
        }
        public override s

使用FormatErrorMessage（字符串名称） { return String.Format（ErrorMessageString，name）; }

    protected override ValidationResult IsValid(object value, ValidationContext validationContext)
    {
        string valueAsString = value as string;
        ValidationResult result = ValidationResult.Success;
        if (String.IsNullOrEmpty(valueAsString))
        {
            if (unit.ResourceSrvc.GetLibraryByTitle(valueAsString) != null)
            {
                result = new ValidationResult(String.Format(_defaultErrorMessage,value));
            }
        }
        else
        {
            result = new ValidationResult("Title cant be empty or null");
        }
        return result;
    }

    public IEnumerable<ModelClientValidationRule> GetClientValidationRules(ModelMetadata metadata, ControllerContext context)
    {
        var rule = new ModelClientValidationRule
        {
            ErrorMessage = this.ErrorMessage,
            ValidationType = "dublicatename",
        };
        yield return rule;
    }
}

并使用它装饰我的模型

public class ResourceLibraryModel
{
    public Guid LibraryId { get; set; }
    [Required]
    [ValidateDublicateName(ErrorMessage="title cant dublicate")]
    public string Title { get; set; }
}

在客户端我有

<script src="/Scripts/jquery.validate.min.js" type="text/javascript"></script>
<script src="/Scripts/jquery.validate.unobtrusive.min.js" type="text/javascript"></script>
<script type="text/javascript">
    $(document).ready(function () {

        $.validator.addMethod("dublicatename", function (value, element, params) {
            alert("test");
        });

    });
</script>

我没有任何验证参数，也没有写$ .validator.unobtrusive.adapters.add（....）

服务器端验证工作正常，但客户端不起作用。

有什么想法吗？

这是视图

     @using (Ajax.BeginForm("CreateLibrary", "Resource", new AjaxOptions { OnSuccess = "RequestSucceeded"}))
        {
            @Html.ValidationSummary(true, "Account creation was unsuccessful. Please correct the errors and try again.")
                <div>
                    @*<div style="margin-bottom:15px">
                        <label><b>Library information:</b></label>
                    </div>*@

                    <div class="editor-field">
                        @Html.TextBoxFor(m => m.Title, new { @class = "logon-field" })
                        @Html.ValidationMessageFor(m => m.Title)
                    </div>
                    <div class="editor-label">
                        @Html.LabelFor(m => m.Title)
                    </div>
                 </div>
}

Answer 1

我认为问题是必须在您的javascript代码后加载jquery.validate.min.js ...

Answer 2

只是猜测但您是否在Web.config文件中启用了客户端验证？

 <appSettings>
  <add key="ClientValidationEnabled" value="true"/> 
  <add key="UnobtrusiveJavaScriptEnabled" value="true"/> 
 </appSettings>

如果是，请按照此链接中的启用客户端验证部分进行操作：http://www.asp.net/mvc/tutorials/creating-a-mvc-3-application-with-razor-and-unobtrusive-javascript

使用属性的客户端自定义验证不起作用

2 个答案: