Json.Net如何将null反序列化为空字符串？

Question

我的class_中有string属性

        [DataMember]
        [JsonProperty(PropertyName = "email")]
        [StringLength(40, ErrorMessage = "The Mobile value cannot exceed 40 characters. ")]
        public string Email { get; set; }

由于某种原因,在Convert.Deserialize过程中,我需要在此属性中使用空字符串而不是null,以防此值未在JSON对象中设置.怎么做 ？

Answer 1

您可以使用DefaultValue属性.

把它装饰成

[DataMember]
[JsonProperty(PropertyName = "email", DefaultValueHandling = DefaultValueHandling.Populate)]
[StringLength(40, ErrorMessage = "The Mobile value cannot exceed 40 characters. ")]
[DefaultValue("")]
public string Email { get; set; }