C# json custom serializing

Question

I have created a custom label object in c# and I need to make json object from this object. But I have derived the Label from the 'Label' control to custom label object. After serializing custom label object, json is getting filled with label properties. But, I don't need it. I need to pass only the custom label object.

This is custom label :

public class customLabel:Label
{

        public string X { get; set; }

        public string Y { get; set; }

        public string H { get; set; }

        public string W { get; set; }

        public string FontName { get; set; }

        public string FontSize { get; set; }

        public string Type { get; set; }

        public string Align { get; set; }

        public string _Text { get; set; }


}

I am using Newtonsoft.Json for json serializng

how can i only pass custom label object for serializng? @SebastianHofmann — DanialDP
– DanialDP, Commented Apr 30, 2018 at 7:01
yeah, but your object inherits from Label so, it is a label too. — Jodrell
– Jodrell, Commented Apr 30, 2018 at 7:06
@DanialDP what value do you mean by this values? You can pass any object to JSON.NET. Objects will always be serialized as dictionaries. Did you try it? What code did you use? What did you get and what did you expect? — Panagiotis Kanavos
– Panagiotis Kanavos, Commented Apr 30, 2018 at 7:10

Jodrell · Accepted Answer · 2018-04-30 07:12:07Z

2

Create a custom JsonConvertor that includes the properties you want.

Then pass it to SerializeObject to control the serialization.

string result = JsonConvert.SerializeObject(
                     customLabel,
                     Formatting.Indented,
                     new CustomLabelConverter(typeof(CustomLabel)));

answered Apr 30, 2018 at 7:12

Jodrell

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Comments

Asakuraa Ranger · Accepted Answer · 2018-04-30 07:21:59Z

1

Take a look at this Ignore Base Class Properties in Json.NET Serialization

[JsonObject(MemberSerialization.OptIn)]
public class customLabel:Label
{
    [JsonProperty("X")]
    public string X { get; set; }

    [JsonProperty("Y")]
    public string Y { get; set; }

    ...
    public string H { get; set; }

    public string W { get; set; }

    public string FontName { get; set; }

    public string FontSize { get; set; }

    public string Type { get; set; }

    public string Align { get; set; }

    public string _Text { get; set; }

}

but you need to put JsonProperty to all any property you need to serialize it

answered Apr 30, 2018 at 7:21

Asakuraa Ranger

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Comments

CoLiNaDE · Accepted Answer · 2018-04-30 07:21:27Z

0

Try something like this:

customLabel yourLabel = new customLabel();

yourLabel.X = 50;
yourLabel.Y = 20;
//....

string output = JsonConvert.SerializeObject(yourLabel);
//output contains the serialized object

customLabel deserializedLabel = JsonConvert.DeserializeObject<customLabel>(output);

edit: Change your class to this:

[DataContract]
public class customLabel:Label
{
     [DataMember]
     public string X { get; set; }
     [DataMember]    
     public string Y { get; set; }
     [DataMember]
     public string H { get; set; }
     [DataMember]    
     public string W { get; set; }
     [DataMember]
     public string FontName { get; set; }
     [DataMember]   
     public string FontSize { get; set; }
     [DataMember]  
     public string Type { get; set;
     [DataMember]
     public string Align { get; set; }
     [DataMember]
     public string _Text { get; set; }
}

Now only the properties with the attribute [DataMember] should be included

And take a look at the documentation: https://www.newtonsoft.com/json/help/html/SerializingJSON.htm

edited Apr 30, 2018 at 7:21

answered Apr 30, 2018 at 7:09

CoLiNaDE

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2 Comments

DanialDP Over a year ago

but its pass label properties.i just wanna pass custom label values!

CoLiNaDE Over a year ago

sorry i misunderstood you. I added the class definition

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