CODEWITHSUNDEEP
c#linqautomapper
Paul
Paul

Reputation: 763

Pass Multiple Objects in Automapper Options

I'd like to be able to pass multiple objects to Automapper via the Options dictionary, but the dictionary itself is read only.

E.g. the examples I've found show adding one item like this:

Mapper.Map<Source, Dest>(src, opt => opt.Items["Foo"] = "Bar");

But I'd like to do something more like this:

 var mappingOptions = new Dictionary<string, object>();
 mappingOptions["foo"] = "foo";
 mappingOptions["bar"] = "bar";

 var model = _mapper.Map<ThingModel>(realthing,
     opt => opt.Items = mappingOptions // readonly, can't be assigned
 );

Is adding more than one item possible, maybe just inside the LINQ?

Upvotes: 2

Views: 2851

Answers (2)

Vitaliy Kalinin
Vitaliy Kalinin

Reputation: 1871

In such case you have to clear dictionary and populate it with items from source dictionary:

                var model = _mapper.Map<ThingModel>(
                //realthing,
                opt =>
                {
                    opt.Items.Clear();
                    mappingOptions.Aggregate(
                        opt.Items,
                        (items, option) =>
                        {
                            items.Add(option.Key, option.Value);
                            return items;
                        }
                        );
                }
                );

Upvotes: 0

stuartd
stuartd

Reputation: 73253

Do you mean like this?

Mapper.Map<Source, Dest>(src, opt => 
{
     opt.Items["foo"] = "foo";
     opt.Items["bar"] = "bar";
});

Upvotes: 6

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