Pass a C# dynamic object to a method that takes an IDictionary

Question

Right now, I'm doing this

var data = new JobDataMap(new Dictionary<string,string> { {"obj", "stringify"} });

But I want to do this:

dynamic d = new { obj = "stringify" };
var data = new JobDataMap(d);

Is there some secret syntactical sugar that would allow me to do this?

No it is not possible like that. But why don't you add your dynamic object to the JobDataMap, with a certain key? — Styxxy, May 14 '13 at 23:00
Perhaps you can use [`RouteValueDictionary`](http://msdn.microsoft.com/en-us/library/cc680272.aspx`). — Silvermind, May 14 '13 at 23:11

score 1 · Answer 1 · answered May 14 '13 at 23:03

1

There's no magical way of doing this. There's no way the compiler can know that your Dynamic object really is a Dictionary at compile time.

That being said, you could create an extension method that converts it to a Dictionary so that you could do something like this:

dynamic d = new { obj = "stringify" };
var data = new JobDataMap(d.ToDictionary());

answered May 14 '13 at 23:03

Kenneth

Or perhaps an overloaded constructor that takes that item and creates a dictionary. – Gauthier May 14 '13 at 23:20
Yes, that's actually easier – Kenneth May 14 '13 at 23:21
Cool, I figured it might not be possible. Is there a more terse way to define my dictionary, maybe? – Caleb Jares May 14 '13 at 23:36
Do extension methods work with dynamic objects or does d have to be an anonymous object? – sgmoore May 15 '13 at 12:29
You could create an extension method on object. I wouldn't recommend it though. I'd go with the overloaded constructor – Kenneth May 15 '13 at 12:57
Even if the extension method is on object, it still won't work on dynamic object. – sgmoore May 16 '13 at 08:10

1 Answers1