ApiExamples.ExVariableCollection.ContainsEx C# (CSharp) Метод

        public void ContainsEx()
        {
            //ExStart
            //ExFor:VariableCollection.Contains
            //ExSummary:Shows how to check if a collection of document variables contains a key.
            Document doc = new Document(MyDir + "Document.doc");

            doc.Variables.Add("doc", "Word processing document");
           
            Console.WriteLine(doc.Variables.Contains("doc")); // True
            Console.WriteLine(doc.Variables.Contains("Word processing document")); // False
            //ExEnd
        }