Simpl.Serialization.FieldDescriptor.GetMapKeyFieldValue C# (CSharp) Method

        public Object GetMapKeyFieldValue(Object mapElement)
        {
            if (this.mapKeyFieldName != null)
            {
                ClassDescriptor cd = ClassDescriptor.GetClassDescriptor(mapElement);
                if (cd != null)
                {
                    FieldDescriptor fd = cd.GetFieldDescriptorByFieldName(mapKeyFieldName);
                    return fd.field.GetValue(mapElement);
                }
            }
            return null;
        }