c# - Mapster Adpat not working -

i`m trying make select in form-control.

<div class="form-row form-row-wide">      <div class="col-sm-3">              <select asp-for="estadoid" class="form-control input-text" required="required" placeholder="estado"></select>              <span asp-validation-for="estadoid" class="text-danger"></span>      </div>      <div class="col-sm-9">              <select asp-for="cidadeid" class="form-control input-text" required></select>              <span asp-validation-for="cidadeid" class="text-danger"></span>      </div> </div> 

but adapt not getting element`s. controller.

public async task<jsonresult> get(select2request param)         {             try             {                 var pagedresults = await _service.getallbypageasync(w => w.nome.like(param.q), 20, param.page);                 var result = pagedresults.data.adapt<list<stateviewmodel>>().adapt<list<select2response>>();                  return json(result);             }             catch (exception e)             {                 return new jsonresult(badrequest(e));             }         } 

the problem is, after pass adpat elements r null. mapping.

public class statemapping : iregister {     public void register(typeadapterconfig config)     {         config.newconfig<stateviewmodel, select2response>()             .map(p => p.id, s => s.estadoid)             .map(p => p.text, s => s.nome);     } } 

how should make work?

at startup startup place following code :

using mapster; //reference package   namespace yourapplication {     public class startup     {         public startup(ihostingenvironment env)         {            //his previous codes ...             //place code             typeadapterconfig.globalsettings.scan(assembly.getentryassembly());         }     } }