How to Exclude Properties from JSON Serialization using Json.Net?

Controlling JSON Serialization with Json.Net

When using Data Transfer Objects (DTOs) in object-oriented programming, selectively excluding properties from JSON serialization is crucial for data security and efficient JSON payloads. Json.Net offers flexible methods to achieve this.

One common approach is using the [JsonIgnore] attribute. This attribute, applied to a public property, prevents its inclusion during serialization while maintaining its accessibility within your code.

Example using [JsonIgnore]:

<code class="language-csharp">public class MyClass
{
    public string Property1 { get; set; }
    [JsonIgnore]
    public string Property2 { get; set; }
}</code>

Property2 will be omitted from the serialized JSON.

Another method involves leveraging the DataContract and DataMember attributes from System.Runtime.Serialization. Only properties marked with [DataMember] will be serialized.

Example using DataContract and DataMember:

<code class="language-csharp">[DataContract]
public class MyClass2
{
    [DataMember]
    public string Property1 { get; set; }
    public string Property2 { get; set; }
}</code>

Here, Property2 is excluded because it lacks the [DataMember] attribute.

For comprehensive details and advanced scenarios, consult this helpful resource: https://www.php.cn/link/d203bbe1b9e242a034b376bafda15a99

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