Question

I’m doing a audit class. For that I’ve two object of same type, but I don’t know what type.
To audit I just need the properties that make sense in a human reading document.

So I just want the Name (or main identifier) of custom object props.

Example: If I’ve a department and I change the manager. I need to log just the new manager Name. “Manager: John – Bill”

So how can I list just the main properties?

— more about
To define the main identifier I’m using a customAttribute:

[audit]
public string Name { get; set; }

So, I’m thinking in pick them from a list, that except the primitives, with:

var propsOfObject = objectToAudit.GetType().GetProperties();
foreach (PropertyInfo propertyInfo in propsOfObejct) {
    IEnumerable<FieldInfo> props = propertyInfo.GetType().GetFields().Where(p => Attribute.IsDefined(p, typeof (AuditAttribute)));
    if (props.Count() > 0) {
        dicWithNameValue.Add(propertyInfo.GetType().FullName, props.First().GetValue(objectToAudit).ToString());
    }
}

right way?

Answer 1

I think it should be like this

IEnumerable<FieldInfo> props = propertyInfo.GetType().GetFields()
                        .Where(f => f.GetCustomAttributes(true).OfType<AuditAttribute>());

FieldInfo.Attributes that you are trying to use returns an enum of type FieldAttributes and is used for a different purpose. See msdn.