Setting by attributes - chaowlert/Mapster GitHub Wiki

AdaptIgnore attribute

When a property decorated with [AdaptIgnore], that property will be excluded from Mapping. For example, if we would like to exclude price to be mapped.

public class Product {
    public string Id { get; set; }
    public string Name { get; set; }

    [AdaptIgnore]
    public decimal Price { get; set; }
}

Ignore custom attributes

You can ignore members annotated with any attributes by using the IgnoreAttribute method.

TypeAdapterConfig.GlobalSettings.Default
    .IgnoreAttribute(typeof(JsonIgnoreAttribute));

AdaptMember attribute

With AdaptMember attribute, you can specify name of source or target to be mapped. For example, if we would like to map Id to Code.

public class Product {
    [AdaptMember("Code")]
    public string Id { get; set; }
    public string Name { get; set; }
}

You can also map non-public members with AdaptMember attribute.

public class Product {
    [AdaptMember]
    private string HiddenId { get; set; }
    public string Name { get; set; }
}

Rename from custom attributes

You can rename member to be matched by GetMemberName. For example, if we would like to rename property based on JsonProperty attribute.

TypeAdapterConfig.GlobalSettings.Default
    .GetMemberName(member => member.GetCustomAttributes(true)
                                   .OfType<JsonPropertyAttribute>()
                                   .FirstOrDefault()?.PropertyName);  //if return null, property will not be renamed

Include custom attributes

And if we would like to include non-public members decorated with JsonProperty attribute, we can do it by IncludeAttribute.

TypeAdapterConfig.GlobalSettings.Default
    .IncludeAttribute(typeof(JsonPropertyAttribute));