Możesz użyć niestandardowego atrybutu sprawdzania tutaj mój przykład z datami. Ale możesz go również używać z ints.
pierwsze, oto model:
public DateTime Beggining { get; set; }
[IsDateAfterAttribute("Beggining", true, ErrorMessageResourceType = typeof(LocalizationHelper), ErrorMessageResourceName = "PeriodErrorMessage")]
public DateTime End { get; set; }
A oto sam atrybut:
public sealed class IsDateAfterAttribute : ValidationAttribute, IClientValidatable
{
private readonly string testedPropertyName;
private readonly bool allowEqualDates;
public IsDateAfterAttribute(string testedPropertyName, bool allowEqualDates = false)
{
this.testedPropertyName = testedPropertyName;
this.allowEqualDates = allowEqualDates;
}
protected override ValidationResult IsValid(object value, ValidationContext validationContext)
{
var propertyTestedInfo = validationContext.ObjectType.GetProperty(this.testedPropertyName);
if (propertyTestedInfo == null)
{
return new ValidationResult(string.Format("unknown property {0}", this.testedPropertyName));
}
var propertyTestedValue = propertyTestedInfo.GetValue(validationContext.ObjectInstance, null);
if (value == null || !(value is DateTime))
{
return ValidationResult.Success;
}
if (propertyTestedValue == null || !(propertyTestedValue is DateTime))
{
return ValidationResult.Success;
}
// Compare values
if ((DateTime)value >= (DateTime)propertyTestedValue)
{
if (this.allowEqualDates && value == propertyTestedValue)
{
return ValidationResult.Success;
}
else if ((DateTime)value > (DateTime)propertyTestedValue)
{
return ValidationResult.Success;
}
}
return new ValidationResult(FormatErrorMessage(validationContext.DisplayName));
}
public IEnumerable<ModelClientValidationRule> GetClientValidationRules(ModelMetadata metadata, ControllerContext context)
{
var rule = new ModelClientValidationRule
{
ErrorMessage = this.ErrorMessageString,
ValidationType = "isdateafter"
};
rule.ValidationParameters["propertytested"] = this.testedPropertyName;
rule.ValidationParameters["allowequaldates"] = this.allowEqualDates;
yield return rule;
}
Musisz zakończyć ten przykład z walidacji po stronie klienta: 'jQuery.validator.addMethod ('isdateafter', funkcji (wartość, element, params) { if (!/Invalid | NaN/.test (new Date (value))) { return new Date (value)> new Date(); } return isNaN (wartość) && isNaN ($ (parametry) .val()) || (parseFloat (wartość)> parseFloat ($ (params) .val())); }, ''); jQuery.validator.unobtrusive.adapters.add ('isdateafter', {}, funkcja (opcje) { options.rules ['isdateafter'] = true; options.messages ['isdateafter'] = options.message; }); ' – LoBo
Wygląda na to, że istnieje błąd związany z linią' if (this.allowEqualDates && value == propertyTestedValue) '. Działa to: 'if (this.allowEqualDates && value.Equals (propertyTestedValue)) lub nawet tego' if (this.allowEqualDates && (DateTime) value == (DateTime) propertyTestedValue). – publicgk