[中文](README.zh-CN.MD) | **English** FreeSql extension package, map *ValueObject* to `typeof(string)`, install the extension package: > dotnet add package FreeSql.Extensions.JsonMap ```csharp fsql.UseJsonMap(); //Turn on function class TestConfig { public int clicks { get; set; } public string title { get; set; } } [Table(Name = "sysconfig")] public class S_SysConfig { [Column(IsPrimary = true)] public string Name { get; set; } [JsonMap] public T Config { get; set; } } ```