[C#] ExpandoObject

 C#   ExpandoObject  

▌Introduction

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We will learn how to add a dynamic property or method to an ExpandoObject object.

▌Environment

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▋Visual Studio 2017 community

▋dotnet core 2.1.2

▌Implement

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▋Sample codes

static void Main(string[] args)

        {

            Console.WriteLine("Sample for ExpandoObject");

           

            //New object

            object myObj = new {

               Name = "JB",

               Phone ="09XXXXXXXX"

            };

            //New function

            var myFunc = new Func<dynamic, string>((x) => {

                return $"{x.Name}:{x.Phone}";

            });

            //Create ExpandoObject

            dynamic expando = new ExpandoObject();

            addProperty(expando, "Profile", myObj);

            addMethod(expando, "Show", myFunc);

           

            Console.WriteLine(expando.Show(expando.Profile));

        }

        private static void addProperty(ExpandoObject expando, string propertyName, object propertyValue)

        {

            // ExpandoObject supports IDictionary so we can extend it like this

            var expandoDict = expando as IDictionary<string, object>;

            if (expandoDict.ContainsKey(propertyName))

                expandoDict[propertyName] = propertyValue;

            else

                expandoDict.Add(propertyName, propertyValue);

        }

        private static void addMethod(ExpandoObject expando, string methodName, Func<object, string> myMethod)

        {

            var expandoDict = expando as IDictionary<string, object>;

            expandoDict.Add(methodName, myMethod);

           

        }

Output:

JB:09XXXXXXXX

▌Reference

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▋Adding properties and methods to an ExpandoObject, dynamically!