Expando Object and IEnumerable returns cannot convert implicitly void to object

Question

This code is throwing and error 'cannot implicitly convert type void to object'

dynamic disruption1 = new ExpandoObject();
disruption1.locationsAffected = new string[] { "london", "panama" };
IEnumerable<dynamic> disruptionList = new List<dynamic>().Add(disruption1);

But I am not sure what is wrong, I also tried

dynamic disruptionList = new List<dynamic>().Add(disruption1);

and it doesn't throw the error but is not what I need.

I am creating a unit test.

score 2 · Accepted Answer · answered Mar 10 '17 at 15:33

2

The return type of Add() method is void and you are trying to assign void to variable of type List<dynamic> which is absolutely not allowed and compiler will throw error which you are seeing,as you already have reference to the List<T>, add the item on the new line following way:

dynamic disruptionList = new List<dynamic>();
disruptionList.Add(disruption1);

answered Mar 10 '17 at 15:33

Ehsan Sajjad

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wao, I totally missed that! fool of me, thank you very much. I think I am just tired. – Yatiac Mar 10 '17 at 15:37

Expando Object and IEnumerable returns cannot convert implicitly void to object

1 Answers1