How Can I Map Differently Named JSON Fields to C# Properties During Deserialization?

Change field name using JavaScriptSerializer.Deserialize in C#

The

class in C# provides a convenient way to deserialize JSON data into C# objects. However, by default it maps JSON field names directly to property names in the target object. This can cause deserialization to fail when the JSON field name is inconsistent with the property name in the C# object. JavaScriptSerializer

To solve this problem, there are two common methods:

1. Use the attribute XmlElement

This method involves manually setting the field name mapping using the

attribute. However, as mentioned in the original post, this method does not work with [XmlElement]. Field name mapping should be implemented using the JavaScriptSerializer attribute instead. [DataMember]

2. Use DataContractJsonSerializer The

classes provided in the

System.Runtime.Serialization namespace provide a more powerful solution for field name mapping. The corresponding JSON field name can be specified explicitly by applying the DataContractJsonSerializer attribute on a C# object's property. [DataMember]

For example:

[DataContract]
public class DataObject
{
    [DataMember(Name = "user_id")]
    public int UserId { get; set; }

    [DataMember(Name = "detail_level")]
    public string DetailLevel { get; set; }
}

In this example, the

and user_id JSON field names map to detail_level and UserId properties in the C# object, respectively. DetailLevel

To use

to deserialize JSON data: DataContractJsonSerializer

using System.Runtime.Serialization.Json;
using System.Text;
using System.IO;

...

DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(DataObject));
MemoryStream ms = new MemoryStream(Encoding.Unicode.GetBytes(JsonData));
DataObject dataObject = serializer.ReadObject(ms) as DataObject;

By using the

and DataContractJsonSerializer attributes, you can effectively change field names during JSON deserialization, ensuring correct mapping between JSON data and C# objects. [DataMember]

The above is the detailed content of How Can I Map Differently Named JSON Fields to C# Properties During Deserialization?. For more information, please follow other related articles on the PHP Chinese website!