Get Properties of baseclass and specific inherited class

Question

I have a base class CrmObject and a few classes that inherit it (Aufgabe, Kontakt, ...). I only have a string-value for the child-class and I want to get both the Properties of CrmObject and the specific child-class in one Statement.

I'd get the properties of the child-class like this:

var propertyInfos = typeof(CrmObject).Assembly.GetType("Aufgabe").GetProperties().Where(p => Attribute.IsDefined(p, typeof(ImportParameter)));

But I'd like to get the Properties of CrmObject, too. Possibly within the same statement.

[UPDATE] This should be it. I'll test it later. Thank you, guys. :)

var propertyInfos = typeof(CrmObject).Assembly.GetType("DAKCrmImport.Core." +crmType).G‌etProperties().Where(p => Attribute.IsDefined(p, typeof(ImportParameter)));

Weirdly enough you don't need the bindingflag parameter to flatten the hierarchy. Apparently it's the default value? Well .. whatever. It works :)

Ohh thank you. So the Statement would look like this:`var propertyInfos = typeof(DAKCrmImport.Core.Entities.CrmData.CrmObject).Assembly.GetType(crmType).GetProperties(BindingFlags.FlattenHierarchy).Where(p => Attribute.IsDefined(p, typeof(ImportParameter)));` — OhSnap, Nov 17 '15 at 09:02

score 1 · Accepted Answer · answered Nov 17 '15 at 08:55

1

Works fine for me.

public class CrmObject
{
    [ImportParameter]
    public string Name { get; set; }
}

public class Aufgabe : CrmObject
{
    [ImportParameter]
    public int Id { get; set; }
}

public class ImportParameterAttribute : Attribute
{

}

public class InheritenceProgram
{
    public static void Main()
    {
        var propertyInfos = typeof(CrmObject).Assembly.GetType("Aufgabe").GetProperties().Where(p => Attribute.IsDefined(p, typeof(ImportParameterAttribute)));
        var list = propertyInfos.ToList();
    }
}

answered Nov 17 '15 at 08:55

Greg

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Uhm .. but I want the properties of CrmObject, too. I'm pretty sure I wouldn't get them this way. I'd only get the properties of "Aufgabe". – OhSnap Nov 17 '15 at 08:59
1

`GetType` excpects the `FullName` of the type. – Amit Kumar Ghosh Nov 17 '15 at 09:15
You'll get all properties marked with the attribute ImportParameter. In my example you should get Id and Name. – Greg Nov 17 '15 at 09:17
And as Amit Kumar Ghosh commented, you need to use the FullName with GetType. My example only works if you don't use a namespace. – Greg Nov 17 '15 at 09:19

score 1 · Answer 2 · edited May 23 '17 at 12:03

As Mark said, you need to specify BindingFlags.FlattenHierarchy.
But when you specify the BindingFlags, you need to specify exactly what you want. That means that you also have to specify BindingFlags.Instance to get the instance members and BindingFlags.Public to include public members.

So the command would look like this:

var propertyInfos = typeof(CrmObject).Assembly.GetType(crmType).G‌etProperties(BindingFlags.FlattenHierarchy | BindingFlags.Instance | BindingFlags.Public).Where(p => Attribute.IsDefined(p, typeof(ImportParameter)));

You can read more about it in this great SO answer and in the documentation of Type.GetProperties.

Get Properties of baseclass and specific inherited class

2 Answers2