Read values from a Dynamic Object C#

Question

I'm trying to read values from System.Web.Helpers.DynamicJsonObject. I can see the values in the debugger but I can't figure out how to access them. I have tried this

item.GetType().GetProperty("batch_id").GetValue(item, null);

but when I try that I get this response in the debugger "item.GetType().GetProperty("batch_id")' is null"

I have attached a picture from my solution enter image description here

Thank you, -Tesh

score 32 · Accepted Answer · answered Oct 16 '12 at 20:21

32

It is dynamic so you can just do:

string batchId = item.batch_id;

If for some reason you have the property name in a string, and don't know it at compile time, the indexing operator will work:

string value = item["batch_id"];

answered Oct 16 '12 at 20:21

driis

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Thanks driss, that worked perfectly. I'm glad you mentioned the item["batch_id"], because that was my next question :). – MindGame Oct 16 '12 at 21:31
1

Please can you explain in which case property names would be in "string" and in which case as normal properties ? – Omer Javed Jan 28 '15 at 08:37

score 4 · Answer 2 · answered Oct 16 '12 at 20:31

4

Try enumerating the values DynamicJsonObject.GetDynamicMemberNames Method. It returns an IEnumerable of string.

answered Oct 16 '12 at 20:31

decyclone

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score 1 · Answer 3 · answered Oct 16 '12 at 20:25

1

It doesn't work because they are fields, not properties. And, yeah, it is dynamic, so you can use just item.batch_id.

answered Oct 16 '12 at 20:25

Sergei B.

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Read values from a Dynamic Object C#

3 Answers3