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Dynamics 365 Community / Forums / Finance | Project Operations, Human Resources, ... / assign value to C# lis...
Finance | Project Operations, Human Resources, ...
Answered

assign value to C# list<KeyValuePair<string,string> from X++

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Posted on by Pratik Rami 225

Hello,

I have C# class. in that I have two properties of type "List<KeyValuePair<string,string>>" as shown in below screenshot. can anyone tell me how I can assign value to this from X++ ?

pastedimage1614361187741v1.png

In X++ I have created object of this class. and I want to assign value like:

object.ViewPrinciplesKeyValue = [{"Key":"Everyone","Value":"Everyone"}].

Is there anything like JsonArray, JsonObject in X++?

I have the same question (0)
  • Martin Dráb Profile Picture
    Martin Dráb 238,782 Most Valuable Professional on at

    X++ doesn't officially support generics, therefore working with generic types from X++ isn't easy. Usually the best option is providing an alternative, non-generic interface that you can easily call from X++.

    By the way, does C# support an implicit deserialization of strings to JsonProperty objects, as your examples suggests? I would think that you need to explicitly call a deserializer (e.g. JsonConvert.DeserializeObject).

    Anyway, if you intention is to assign a string, create a string property (such as ViewPrinciplesJson) which will do the deserialization and assing the value of ViewPrinciplesKeyValue.

  • Pratik Rami Profile Picture
    Pratik Rami 225 on at

    We have to call JsonConvert.DeserializeObject in C#.

    Martin, sorry but i am not able to understand what you said in last para. Can you please explain little more. I have to assign list to this property.

    What I am doing is: I create object of this class in X++...assign all properties values and then send this object as parameter to C# method which will call external api. In that method this object will be serialised and used as a requestData(body).

  • Verified answer
    Martin Dráb Profile Picture
    Martin Dráb 238,782 Most Valuable Professional on at

    You said you wanted to assign a string. To do that, you need to call JsonConvert.DeserializeObject to convert the string to a generic list. So why don't you wrap this logic in a string property of the C# class? It could look somehow like this:

    public string ViewPrinciplesJson
{
    get
    {
        return JsonConvert.SerializeObject(ViewPrinciplesKeyValue);
    }
    set
    {
        ViewPrinciplesKeyValue = JsonConvert.DeserializeObject(value);
    }
}

    Using such a property from X is trivial - you'll simply assign a string to it, as you asked for:

    object.ViewPrinciplesJson = [{"Key":"Everyone","Value":"Everyone"}];

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