I am creating a day range validator using DataAnnotations, jQuery.validate and jquery.validate.unobtrusive. I've already read the following: http://bradwilson.typepad.com/blog/2010/10/mvc3-unobtrusive-validation.html
http://weblogs.asp.net/mikaelsoderstrom/archive/2010/10/06/unobtrusive-validation-in-asp-net-mvc-3.aspx
and other but can't post them (noob)
As well as most of the post on SO. I'm baning my head against a wall, any help could be rewardde with beer/food/code/etc ;) Anyway here's the code:
I have a model object with the following parameter:
[Display(Name = "Start date"),
DayRange(0, 5, ErrorMessage = "The Start Date must be between today and 5 days time.")]
public DateTime StartDate { get; set; }
DayRange is a custom attribute class :
[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 = minimu开发者_运维问答mDays;
_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;
}
}
I have the following in my web.config:
<appSettings>
<add key="ClientValidationEnabled" value="true"/>
<add key="UnobtrusiveJavaScriptEnabled" value="true"/>
</appSettings>
I have have following JS trigger before the document is ready (have tried triggering it when the doc is ready too ):
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');
What am I doing wrong? Thanks in advance, Jol
Solved! I forgot/didn't understand that you have to pass jQuery itself into the function closure. Therefore the custom validator on the client side should look like this:
$(function () {
jQuery.validator.addMethod('dayRange', function (value, element, 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));
I also change the way I add the adapter to unobtrusive so I can add additional properties. Never send to server-side dev to do a front-end engineers job ;) Hope this helps someone.
Reference: http://bradwilson.typepad.com/blog/2010/10/mvc3-unobtrusive-validation.html
adapters.addMinMax()
's param is orderby this:
adapterName, minRuleName, maxRuleName, minMaxRuleName, minAttribute, maxAttribute
so you need this:
jQuery.validator.unobtrusive.adapters.addMinMax('dayrange', '', '', 'dayrange','minlength', 'maxlength');
AND,,,
param.min, param.max be sure to undefine. param is an purely array as: ['111','000'].
so you need:
var minDate = now.setDate(now.getDate() - param[0]);
var maxDate = now.setDate(now.getDate() + param[1]);
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