automapper - ignore mapping if property type is different with same property name - C#

Question

How can I ignore mapping if property type is different with same property name? By default it\'s throwing error.

Mapper.CreateMap

        

Answer 1

You can use ForAllMembers() to setup the appropriate mapping condition:

Mapper.Initialize(cfg =>
{
    cfg.CreateMap().ForAllMembers(memberConf =>
    {
        memberConf.Condition((ResolutionContext cond) => cond.DestinationType == cond.SourceType);
    });
}

You can also apply it globally using ForAllMaps():

Mapper.Initialize(cfg =>
{
    // register your maps here
    cfg.CreateMap();

    cfg.ForAllMaps((typeMap, mappingExpr) =>
    {
        var ignoredPropMaps = typeMap.GetPropertyMaps();

        foreach (var map in ignoredPropMaps)
        {
            var sourcePropInfo = map.SourceMember as PropertyInfo;
            if (sourcePropInfo == null) continue;

            if (sourcePropInfo.PropertyType != map.DestinationPropertyType)
                map.Ignore();
        }
    });
});