我正在使用DataAnnotations创建一个日期范围验证器,jQuery.validate和jquery.validate.unobtrusive.我已经阅读了以下内容：
http://bradwilson.typepad.com/blog/2010/10/mvc3-unobtrusive-validation.html
http://bradwilson.typepad.com/blog/2010/10/mvc3-unobtrusive-validation.html
和其他但不能发布(noob)
以及SO上的大部分帖子.我正在把头靠在墙上,任何帮助都可以用啤酒/食物/代码/等奖励;)无论如何,这里是代码：
我有一个带有以下参数的模型对象：
[Display(Name = "Start date"),DayRange(0,5,ErrorMessage = "The Start Date must be between today and 5 days time.")]
public DateTime StartDate { get; set; }
[AttributeUsage(AttributeTargets.Field | AttributeTargets.Property,AllowMultiple = false,Inherited = true)]
public class DayRangeAttribute : RangeAttribute,IClientValidatable
{
private int _minimumDays;
private int _maximumDays;
public DayRangeAttribute(int minimumDays,int maximumDays) : base(minimumDays,maximumDays)
{
_minimumDays = minimumDays;
_maximumDays = maximumDays;
}
public override bool IsValid(object value)
{
var dateToBeTested = value as DateTime?;
return dateToBeTested.HasValue && dateToBeTested.Value >= DateTime.Today.AddDays(_minimumDays) && dateToBeTested.Value <= DateTime.Today.AddDays(_maximumDays);
}
public IEnumerable<ModelClientValidationRule> GetClientValidationRules(ModelMetadata Metadata,ControllerContext context)
{
var rule = new ModelClientValidationRule
{
ErrorMessage = this.ErrorMessage,ValidationType = "dayrange"
};
rule.ValidationParameters.Add("min",_minimumDays);
rule.ValidationParameters.Add("max",_maximumDays);
yield return rule;
}
}
我在web.config中有以下内容：
<appSettings>
<add key="ClientValidationEnabled" value="true"/>
<add key="UnobtrusiveJavaScriptEnabled" value="true"/>
</appSettings>
在文档准备好之前,我已经有了以下JS触发器(在doc准备就绪时尝试触发它)：
jQuery.validator.addMethod('dayrange',function (value,element,param) {
if (!value) return false;
var now = Date();
var dateValue = Date.parse(value);
var minDate = now.setDate(now.getDate() - param.min);
var maxDate = now.setDate(now.getDate() + param.max);
return this.optional(element) && dateValue >= minDate && dateValue <= maxDate;
},'Must fall in range');
jQuery.validator.unobtrusive.adapters.addMinMax('dayrange','minlength','maxlength','dayrange');
我究竟做错了什么？先谢谢你,约尔
解决方法
解决了！我忘了/不明白你必须将jQuery本身传递给函数闭包.因此,客户端上的自定义验证器应如下所示：
$(function () {
jQuery.validator.addMethod('dayRange',param) {
if (!value) return false;
var valueDateParts = value.split(param.seperator);
var minDate = new Date();
var maxDate = new Date();
var now = new Date();
var dateValue = new Date(valueDateParts[2],(valueDateParts[1] - 1),valueDateParts[0],now.getHours(),now.getMinutes(),(now.getSeconds()+5));
minDate.setDate(minDate.getDate() - parseInt(param.min));
maxDate.setDate(maxDate.getDate() + parseInt(param.max));
return dateValue >= minDate && dateValue <= maxDate;
});
jQuery.validator.unobtrusive.adapters.add('dayrange',['min','max','dateseperator'],function (options) {
var params = {
min: options.params.min,max: options.params.max,seperator: options.params.dateseperator
};
options.rules['dayRange'] = params;
if (options.message) {
options.messages['dayRange'] = options.message;
}
});
}(jQuery));
我也改变了添加适配器的方式,因此我可以添加其他属性.永远不要发送到服务器端开发人员做前端工程师工作;)希望这有助于某人.
