.net - How to Convert List<string> to ReadOnlyCollection<string> in C#

Question

I want to convert the items entered to a String list to:

System.Collections.ObjectModel.ReadOnlyCollection<string>

I have tried using:

(System.Collections.ObjectModel.ReadOnlyCollection<string>)listname

But it returns an error.

question from:https://stackoverflow.com/questions/8140341/how-to-convert-liststring-to-readonlycollectionstring-in-c-sharp

Answer 1

You can create a new instance using the existing List in the constructor.

var readOnlyList = new ReadOnlyCollection<string>(existingList);

ReadOnlyCollection(Of T) Constructor on MSDN