On a server, I get JSON objects. I use JsonConvert to deserialize them into anonymous objects. I then want to access the members, but I can't do something like:
object a = jsonObj.something.something.else;
So I created the following, with the intention of being able to access a member using an array of selector strings. However, getProperty() here always returns null. Any ideas?
private object recGetProperty(object currentNode, string[] selectors, int index) {
try {
Type nodeType = currentNode.GetType();
object nextNode = nodeType.GetProperty(selectors[index]);
if (index == (selectors.Length - 1)) {
return nextNode;
}
else {
return recGetProperty(nextNode, selectors, index + 1);
}
}
catch (Exception e) {
return null;
}
}
private object getProperty(object root, string[] selectors) {
return recGetProperty(root, selectors, 0);
}
JsonConvert.DeserializeObject
does not deserialize to anonymous object (I guess, you don't use JsonConvert.DeserializeAnonymousType ). Depending on json it returns either JObject
or JArray
.
1. Since JObject implements IDictionary<string, JToken>
you can use it this way
string json = @"{prop1:{prop2:""abc""}}";
JObject jsonObj = JsonConvert.DeserializeObject(json) as JObject;
Console.WriteLine(jsonObj["prop1"]["prop2"]);
or
string str = (string)jsonObj.SelectToken("prop1.prop2");
2. If you want to use the dynamic keyword, then
dynamic jsonObj = JsonConvert.DeserializeObject(json);
Console.WriteLine(jsonObj.prop1.prop2);
Both ways will print abc
my code
Dictionary<string, object> dictionaryObject = new Dictionary<string, object>();
if (anonymousObject is string)
{
dictionaryObject = JsonConvert.DeserializeObject<Dictionary<string,object>>((string)anonymousObject);
}
if (!dictionaryObject.ContainsKey(propertyName))
{
throw new Exception($"property name '{propertyName}' not found");
}
object value = dictionaryObject[propertyName];
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