Finding <T> in IList<T> using reflection [duplicate]

Question

I'm working on a project where I have to reflect through data models to find out what type is in each property on a data models. I have the code working for all cases except for generic collections. I have to be able to what T is in IList.

I have the following data model

public class ArrryOfObjects { public NestModelNestedClass NestClass { get; set; } public int IntObject { get; set; } public IList<NestModelNestedClass> ListOfObjects { get; set; } }

I've seen a couple of examples, like https://stackoverflow.com/a/1043778/136717 on how to do this, but they use the type.GetGenericTypeDefinition() to be get the type. But in my sample I cannot use this because 'type.IsGeneric.Parameter' is false.

I've review Type documentation and don't understand how to do this.

Sergey Kalinichenko · Accepted Answer · 2011-12-26 16:26:18Z

Try this:

var t = typeof(ArrryOfObjects) .GetProperty("ListOfObjects") .PropertyType .GetGenericArguments()[0];

This is how it works:

From the type of ArrryOfObjects...
obtain the property called ListOfObjects...
get the type of that property...
which we know to be a generic type with at least one type parameter.
We get the first type parameter - in your example it should be typeof(NestModelNestedClass)

P.S. GetGenericTypeDefinition gets you typeof(IList<>), the generic type of which IList<NestModelNestedClass> is a generic instance.

Thanks. My actual code was basically same as yours, except of [0] on GetGenericArguements().

Collectives™ on Stack Overflow

Finding <T> in IList<T> using reflection [duplicate]

1 Answer 1

1 Comment

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Linked

Related