public void AddDocumentationLanguage(string twoLetterCode) { if (DocumentationLanguages.SingleOrDefault(d => d == twoLetterCode) == null) { DocumentationLanguages.Add(twoLetterCode); } }
public void AddDocumentationLanguage(string twoLetterCode) { if (!DocumentationLanguages.Contains(twoLetterCode)) { DocumentationLanguages.Add(twoLetterCode); } }