Convert from string to Icollection Automapper

Asked Aug 08 '19 at 09:14

Active Aug 08 '19 at 09:14

Viewed 78 times

I have Job entity with those properties

public class Job: FullAuditedEntity, IMustHaveTenant
{

    public string SpareParts { get; set; }
    public string Tools { get; set; }

}

SpareParts is convert to string from ICollection via automapper like this

 .ForMember(a => a.SpareParts,
                o => o.MapFrom(src => string.Join(";", src.SpareParts)))

I need to convert it from string to ICollection

I try to do it like this

 configuration.CreateMap<Job, EditJobDto>()
            .ForMember(x => x.SpareParts,
                m => m.MapFrom(o => o.SpareParts.Split(';').ToList()));

But I get error at bracket after ';'

JobMapper.cs(51, 41): [CS0854] An expression tree may not contain a call or invocation that uses optional arguments

Where is my problem?

asked Aug 08 '19 at 09:14

Eugene Sukh

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I cannot reproduce this I'm afraid. What version of AutoMapper do you use? What version of C#? Is this definitely .NET Core? However, the error means you need to supply *all* parameters to any methods you use. – DavidG Aug 08 '19 at 09:34
It's .Net Core 2.2. Which parameters? @DavidG – Eugene Sukh Aug 08 '19 at 09:38
I guess it's `Split`. – DavidG Aug 08 '19 at 09:39
I guess `Split` have separator parameter and this is all @DavidG – Eugene Sukh Aug 08 '19 at 09:39
Try being explicit, like `.Split(new[] { ';' }, StringSplitOptions.RemoveEmptyEntries)` for example. – DavidG Aug 08 '19 at 09:41
Yeah, seems works @DavidG – Eugene Sukh Aug 08 '19 at 10:33

Convert from string to Icollection Automapper

0 Answers0