Dynamic object property name begins with number

Question

I have a dynamic object whose property begins with number. How to access this property?

For inst:

myResult.123; // this is unvalid

Any helps would be very appreciated.

Answer 1

If you are using ExpandoObject for your dynamic object, you can cast to IDictionary<string, object> and use an indexer;

dynamic expando = new ExpandoObject();
var dict = (IDictonary<string, object>)expando;
dict["123"] = 2;

Many other dynamic object implementations (eg JObject in Json.NET) provide similar functionality.

Here's an example with JObject:

var json = JsonConvert.SerializeObject(new Dictionary<string, object> { { "123", 10 } });
var deserialized = JsonConvert.DeserializeObject<object>(json);

// using the IDictionary interface
var ten = ((IDictionary<string, JToken>)deserialized)["123"].Value<JValue>().Value;
Console.WriteLine(ten.GetType() + " " + ten); // System.Int64 10

// using dynamic
dynamic d = deserialized;
Console.WriteLine(d["123"].Value.GetType() + " " + d["123"].Value); // System.Int64 10

Answer 2

Modified

Type t = myResult.GetType();
PropertyInfo[] props = t.GetProperties();
Dictionary<string, object> dict = new Dictionary<string, object>();
foreach (PropertyInfo prp in props)
{
   object value = GetPropValue(myResult, prp.Name);
   dict.Add(prp.Name, value);
}

public static object GetPropValue(object src, string propName)
{
   return src.GetType().GetProperty(propName).GetValue(src, null);
}