Determine if an object implements IEnumerable of (T)

I was recently attending a .NET conference when a programmer popped up a question. How do I make sure that my type implements IEnumerable<T>

Here's how:

C#

    protected void CheckInterfaceImpl(Type someType)

    {

        Type[] listInterfaces = someType.GetType().GetInterfaces();

        foreach (Type t in listInterfaces)

        {

            if (t.GetGenericTypeDefinition() == typeof(IEnumerable<>))   

            {       

                // Implements IEnumerable<T>

            }

            else

            {

                // Does not Implement IEnumerable<T>

            }

 

        }

    }

VB.NET

    Protected Sub CheckInterfaceImpl(ByVal someType As Type)

        Dim listInterfaces() As Type = someType.GetType.GetInterfaces()

        For Each t As Type In listInterfaces

            If t.GetGenericTypeDefinition() Is GetType(IEnumerable(Of )) Then

                ' Implements IEnumerable<T>

            Else

                ' Does not Implement IEnumerable<T>

            End If

 

        Next t

    End Sub

Know a better way? Share it here. I am all ears!

Bookmark this link on del.icio.us (saved by 0 users)

Did you like this post?

	subscribe via rss		subscribe via e-mail
	print this post		follow me on twitter

Others Also Read..