using System;

public class BaseType

{

    public string Id { get; set; }

}

​

public class ChildType : BaseType

{

    public string JenkinsIsAFairy { get; set; }

}

​

public static class DeleteManager

{

    public static bool Delete<T>()

    {

        // do some stuff that requires the type

        return true;

    }

}

​

public class ClassThatHasChildTypeInMemory

{

    public void Main()

    {

        var childType = new ChildType();

        // send childType to DeleteManager.Delete here

    }

}