System.ComponentModel.ReflectTypeDescriptionProvider.ReflectedTypeData.GetDefaultProperty C# (CSharp) Method

            internal PropertyDescriptor GetDefaultProperty(object instance)
            {
                AttributeCollection attributes;

                if (instance != null)
                {
                    attributes = TypeDescriptor.GetAttributes(instance);
                }
                else
                {
                    attributes = TypeDescriptor.GetAttributes(_type);
                }

                DefaultPropertyAttribute attr = (DefaultPropertyAttribute)attributes[typeof(DefaultPropertyAttribute)];
                if (attr != null && attr.Name != null)
                {
                    if (instance != null)
                    {
                        return TypeDescriptor.GetProperties(instance)[attr.Name];
                    }
                    else
                    {
                        return TypeDescriptor.GetProperties(_type)[attr.Name];
                    }
                }

                return null;
            }