How Can I Ignore Null Properties When Serializing with Json.Net?

Use json.net to ignore the empty attribute value

When using json.net to sequence the class to JSON, you may want to exclude certain attributes when the attribute is empty. You can use to achieve this purpose, but this solution is static, and dynamic exclusion is not allowed according to the attribute value.

Another solution is to use the JsonIgnoreAttribute attribute of

. The method is as follows:

A single attribute: JsonPropertyAttribute NullValueHandling

The entire class:

<code class="language-csharp">[JsonProperty("property-name", NullValueHandling=NullValueHandling.Ignore)]
public string Property { get; set; }</code>

Working principle:

: Eliminate the attributes of empty values ​​from serialization.

<code class="language-csharp">[JsonObject(ItemNullValueHandling = NullValueHandling.Ignore)]
public class ClassName
{
    // ... properties ...
}</code>

: Apply the same rules to all the attributes in the classes with comments.

Through this method, you can dynamically ignore the attributes of empty, and at the same time still include non -air attributes in the JSON output.

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