public override bool ShouldSkipValidation(ControllerContext controllerContext, ModelBindingContext bindingContext, ModelMetadata propertyMetadata, ModelValidationResult validationResult)
{
PropertyInfo modelPropInfo = bindingContext.ModelType.GetProperty(_propertyName);
if (modelPropInfo == null)
{
throw new InvalidOperationException("Could not find property " + _propertyName + " on type " + bindingContext.ModelType.Name);
}
object modelPropValue = modelPropInfo.GetValue(bindingContext.Model, null);
var result = PropertyValidationComparisonUtil.Compare(modelPropValue, _comparisonType, _targetValue);
return(!result.HasValue || result.Value);
}
protected override ValidationResult IsValid(object value, ValidationContext validationContext)
{
PropertyInfo property = validationContext.ObjectType.GetProperty(_propertyName);
if (property == null)
{
return(new ValidationResult("PropertyName is not specified."));
}
object targetValue = property.GetValue(validationContext.ObjectInstance, null);
var comparisonResult = PropertyValidationComparisonUtil.Compare(value, _comparisonType, targetValue);
if (!comparisonResult.HasValue || comparisonResult.Value)
{
return(null);
}
return(new ValidationResult(FormatErrorMessage(validationContext.DisplayName)));
}