我正在尝试使自定义规则“mustbetrue”正常工作。基于这个问题:我的问题是,当我提交表单时,客户端验证不会给我一个错误(不会出现验证文本)。此外,我在 jscript 验证方法中设置了一个断点,它永远不会被触发。添加适配器的连线代码确实会被触发。控制台中没有错误。
我究竟做错了什么?
这就是我拥有的服务器端:
public class MustBeTrueAttribute : ValidationAttribute, IClientValidatable
{
public override bool IsValid(object value)
{
if (value == null) return false;
try
{
return Convert.ToBoolean(value);
}
catch (InvalidCastException)
{
return false;
}
}
public IEnumerable<ModelClientValidationRule> GetClientValidationRules(ModelMetadata metadata,
ControllerContext context)
{
yield return new ModelClientValidationRule
{
ErrorMessage = this.ErrorMessage,
ValidationType = "mustbetrue"
};
}
}
和
public class MustBeTrueAttributeAdapter : DataAnnotationsModelValidator<MustBeTrueAttribute>
{
public MustBeTrueAttributeAdapter(ModelMetadata metadata, ControllerContext context, MustBeTrueAttribute attribute)
: base(metadata, context, attribute)
{
}
public override IEnumerable<ModelClientValidationRule> GetClientValidationRules()
{
return new[] { new ModelClientValidationMustBeTrueRule(ErrorMessage) };
}
}
public class ModelClientValidationMustBeTrueRule : ModelClientValidationRule
{
public ModelClientValidationMustBeTrueRule(string errorMessage)
{
ErrorMessage = errorMessage;
ValidationType = "mustbetrue";
}
}
并在 global.asax
protected void Application_Start()
{
// stuff
DataAnnotationsModelValidatorProvider.RegisterAdapter(typeof(MustBeTrueAttribute), typeof(MustBeTrueAttributeAdapter));
// stuff
}
并在对象上:
[MustBeTrue(ErrorMessageResourceName = "Register_TermsNotAccepted", ErrorMessageResourceType = typeof(Resources.Global))]
public bool AcceptedTerms { get; set; }
客户端:
$(document).ready(function () {
jQuery.validator.addMethod("mustbetrue", function (value, element) {
if (!this.depend(param, element))
return "dependency-mismatch";
return element.checked;
});
jQuery.validator.unobtrusive.adapters.addBool("mustbetrue", "mustbetrue");
});
以及输出的相关 HTML:
<input data-val="true" data-val-mustbetrue="You must accept the terms and conditions" data-val-required="The AcceptedTerms field is required." id="AcceptedTerms" name="AcceptedTerms" type="checkbox" value="true" class="valid">