public virtual void RegisterDelegateFactoryForType<TResult, TFactoryDelegateType>()
{
MethodInfo delegateInvoker = typeof(TFactoryDelegateType).GetMethod("Invoke");
ParameterExpression[] factoryParams = GetParamsAsExpressions(delegateInvoker);
//Build the factory from the template
MethodInfo mi = typeof(ClassFactory).GetMethod("FactoryTemplate");
mi = mi.MakeGenericMethod(typeof(TResult));
Expression call = Expression.Call(mi, new Expression[] {Expression.Constant(this),
Expression.NewArrayInit(typeof(Object), factoryParams)});
TFactoryDelegateType factory = Expression.Lambda<TFactoryDelegateType>(call, factoryParams).Compile();
_ClassFactory.AddFactory(typeof(TFactoryDelegateType), factory as Delegate));
}