How to join 2 dictionaries together ?

Hi,

how do I (aggregate ?) two dictionaries ?

I have the following code :

            private Dictionary agents;
            private Dictionary objects;

            agents = (from a in log.InitialState.Agents.Agent
                            select a).ToDictionary(d => Convert.ToInt32(d.id), d => d as aor.PhysicalObject);

            objects = (from o in log.InitialState.Objects.Object
                            select o).ToDictionary(d => Convert.ToInt32(d.id), d => d as aor.PhysicalObject);

what I want now, is ONE dictionary containing all elements of the agents & objects dictionary. You may
think that there could be a problem with duplicate keys, but each key (id) is unique, so there will be no
problem.

Would be very cool, if this task could be done via only one LINQ query (like the above... just "put together").

Many thanks in advance :-)

bye
paddy3k

1 Reply

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Alan18y ago
Accepted answer
Provided the keys are unique you could combine the two dictionaries as follows:

private Dictionary merger;

merger = Enumerable.Concat(from a in log.InitialState.Agents.Agent
select a, from o in log.InitialState.Objects.Object select o).ToDictionary(d => Convert.ToInt32(d.id), d => d as aor.PhysicalObject);