CODEWITHSUNDEEP
c#entity-frameworkgenericsreflectionattributes
sra
sra

Reputation: 23973

How can I use a custom Attribute within a DynamicProxy Class

I tried to assign a custom Attribute to class that comes from a dynamic proxy 

System.Data.Entity.DynamicProxies.Login_A2947F53...

Example class Login

public partial class Login
{
    [CustomAttribute]
    public virtual int Id
    {
        get;
        set;
    }
}

Now I try to access the Attribute using Generics and Reflection

public static void Process(TSource source)
{
    foreach (PropertyInfo p in target.GetType().GetProperties(flags))
    {
        object[] attr = p.GetCustomAttributes(true); // <- empty
    } 
}

But there is no Attribute. Is that due to the DynmaicProxy or what did I do wrong here?

When I use a concrete class without dynamic proxy like this one, then I get the attributes.

public class TestObject
{
    [CustomAttribute]
    public virtual string Name { get; set; }
    [CustomAttribute]
    public virtual string Street { get; set; }
    public virtual int Age { get; set; }
    public virtual string Something { get; set; }
}

Upvotes: 2

Views: 1048

Answers (2)

andreydruz
andreydruz

Reputation: 110

Use BaseType.

public static void Process(TSource source)
{
    foreach (PropertyInfo p in target.GetType().BaseType.GetProperties(flags))
    {
        object[] attr = p.GetCustomAttributes(true);
    } 
}

Upvotes: 1

sra
sra

Reputation: 23973

OK, this one was obvious after a closer look;

System.Data.Entity.DynamicProxies.Login_A2947F53...

is a dynamicProxy type and know nothing about any Attributes. So I have to use the something like:

foreach (PropertyInfo p in typeof(Login).GetProperties(flags))

instead of the dynamicProxy instance to get the type from. And finaly there are my Attributes.

Upvotes: 1

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