Non-static method requires a target

[Jerome2606]

Hello,

I try to map two class TaskEntity and TaskListItem like that:

Mapper.Register<TaskEntity, TaskListItem>() .Member(dst => dst.AddressValue, src => src.Addresses.ToString()) .Member(dst => dst.AssignedValue, src => EvaluateList(src.TaskUsers, t => t.RoleType == Enums.RoleTypeEnum.Assigned).UserName) .Member(dst => dst.CompleteDateValue, src => src.DeliveryDate) .Member(dst => dst.DeadlineValue, src => src.Deadline) .Member(dst => dst.LessorValue, src => EvaluateList(src.TaskUsers, t => t.RoleType == Enums.RoleTypeEnum.OfficeManager).UserName) .Member(dst => dst.StatusValue, src => src.TaskStatus.Description) .Member(dst => dst.SynchDateValue, src => src.CreationTime) .Member(dst => dst.TemplateTypeValue, src => src.Template.TemplateType.NameKey) .Member(dst => dst.TenantValue, src => EvaluateList(src.TaskUsers, t => t.RoleType == Enums.RoleTypeEnum.CustomerManager).UserName) .Member(dst => dst.TypeOfMissionValue, src => src.ContractType);

I use it like:

List<TaskListItem> taskItems = (List<TaskListItem>) taskEntities.Map(typeof (List<TaskEntity>), typeof (List<TaskListItem>));

And I get this error:

System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.Reflection.TargetException: Non-static method requires a target.

Can you help me to understand why I get this error ?

[anisimovyuriy]

Hi @Jerome2606,

I think you need to use .Function instead of .Member when you try to use MethodCallExpression in other words when you have .Member(dst => dst.AssignedValue, src => EvaluateList(src.TaskUsers, t => t.RoleType == Enums.RoleTypeEnum.Assigned).UserName) rewrite it to .Function(dst => dst.AssignedValue, src => EvaluateList(src.TaskUsers, t => t.RoleType == Enums.RoleTypeEnum.Assigned).UserName)