GetValue() публичный Метод

Gets the underlying value of the property for the current source path.
public GetValue ( ModelInstance root ) : object
root ModelInstance
Результат object
Пример #1
0
        protected override ValidationResult IsValid(object value, ValidationContext validationContext)
        {
            ModelInstance instance = ModelInstance.GetModelInstance(validationContext.ObjectInstance);

            // Get the member name by looking up using the display name, since the member name is mysteriously null for MVC3 projects
            var propertyName = validationContext.MemberName ?? validationContext.ObjectType.GetProperties()
                .Where(p => p.GetCustomAttributes(false).OfType<DisplayAttribute>()
                    .Any(a => a.Name == validationContext.DisplayName)).Select(p => p.Name).FirstOrDefault();

            ModelProperty sourceProperty = instance.Type.Properties[propertyName];

            if (ComparisonPropertyName == null)
                return null;

            ModelSource comparePropPath = new ModelSource(instance.Type, ComparisonPropertyName);

            object compareValue = comparePropPath.GetValue(instance);

            int comparison = ((IComparable)compareValue).CompareTo(value);
            switch (Operator)
            {
                case CompareOperator.Equal: return comparison == 0 ? null : new ValidationResult("Invalid value", new string[] { propertyName });
                case CompareOperator.NotEqual: return comparison != 0 ? null : new ValidationResult("Invalid value", new string[] { propertyName });
                case CompareOperator.GreaterThan: return comparison < 0 ? null : new ValidationResult("Invalid value", new string[] { propertyName });
                case CompareOperator.GreaterThanEqual: return comparison <= 0 ? null : new ValidationResult("Invalid value", new string[] { propertyName });
                case CompareOperator.LessThan: return comparison > 0 ? null : new ValidationResult("Invalid value", new string[] { propertyName });
                case CompareOperator.LessThanEqual: return comparison >= 0 ? null : new ValidationResult("Invalid value", new string[] { propertyName });
            }

            return null;
        }