How do I reflect over the members of dynamic object?

In the case of ExpandoObject, the ExpandoObject class actually implements IDictionary<string, object> for its properties, so the solution is as trivial as casting:

IDictionary<string, object> propertyValues = (IDictionary<string, object>)s;

Note that this will not work for general dynamic objects. In these cases you will need to drop down to the DLR via IDynamicMetaObjectProvider.

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