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我是 AutoMapper 的新手,我有一个如下所示的 View :
@using (Html.BeginForm(null, null, FormMethod.Post, new { enctype = "multipart/form-data" }))
{
@Html.ValidationSummary(true)
<fieldset>
<legend>Consultant</legend>
<div class="editor-label">
@Html.LabelFor(model => model.FirstName)
</div>
<div class="editor-field">
@Html.EditorFor(model => model.FirstName)
@Html.ValidationMessageFor(model => model.FirstName)
</div>
<div class="editor-label">
@Html.LabelFor(model => model.LastName)
</div>
<div class="editor-field">
@Html.EditorFor(model => model.LastName)
@Html.ValidationMessageFor(model => model.LastName)
</div>
<div class="editor-label">
@Html.LabelFor(model => model.Description)
</div>
<div class="editor-field">
@Html.TextAreaFor(model => model.Description)
@Html.ValidationMessageFor(model => model.Description)
</div>
<div class="editor-label">
Program du behärskar:
</div>
<div>
<table id="programEditorRows">
<tr>
<th>
Program
</th>
<th>
Nivå
</th>
</tr>
@foreach (var item in Model.Programs)
{
Html.RenderPartial("ProgramEditorRow", item);
}
</table>
<a href="#" id="addProgram">Lägg till</a>
</div>
<div class="editor-label">
Språk du behärskar:
</div>
<div>
<table id="languageEditorRows">
<tr>
<th>
Språk
</th>
<th>
Nivå
</th>
</tr>
@foreach (var item in Model.Languages)
{
Html.RenderPartial("LanguageEditorRow", item);
}
</table>
<a href="#" id="addLanguage">Lägg till</a>
</div>
<div>
<table id="educationEditorRows">
<tr>
<th>
Utbildning
</th>
<th>
Nivå
</th>
</tr>
@foreach (var item in Model.Educations)
{
Html.RenderPartial("EducationEditorRow", item);
}
</table>
<a href="#" id="addEducation">Lägg till</a>
</div>
<div>
<table id="workExperienceEditorRows">
<tr>
<th>
Arbetserfarenhet
</th>
<th>
Startdatum
</th>
<th>
Slutdatum
</th>
</tr>
@foreach (var item in Model.WorkExperiences)
{
Html.RenderPartial("WorkExperienceEditorRow", item);
}
</table>
<a href="#" id="addWorkExperience">Lägg till</a>
</div>
<div>
<table id="competenceAreaEditorRows">
<tr>
<th>
Kompetensområde
</th>
<th>
Nivå
</th>
</tr>
@foreach (var item in Model.CompetenceAreas)
{
Html.RenderPartial("CompetenceAreaEditorRow", item);
}
</table>
<a href="#" id="addCompetenceArea">Lägg till</a>
</div>
<div>
<input id="fileInput" name="FileInput" type="file" />
</div>
<p>
<input type="submit" value="Spara" />
</p>
</fieldset>
}
<div>
@Html.ActionLink("Back to List", "Index")
</div>
public ActionResult Edit(int id)
{
Consultant consultant = _repository.GetConsultant(id);
ConsultantViewModel vm = Mapper.Map<Consultant, ConsultantViewModel>(consultant);
return View(vm);
}
[HttpPost]
[ValidateInput(false)] //To allow HTML in description box
public ActionResult Edit(int id, ConsultantViewModel vm, FormCollection collection)
{
Consultant consultant = Mapper.Map<ConsultantViewModel, Consultant>(vm);
_repository.Save();
return RedirectToAction("Index");
}
[HttpPost]
[ValidateInput(false)] //To allow HTML in description box
public ActionResult Edit(int id, ConsultantViewModel vm, FormCollection collection)
{
vm.UserName = User.Identity.Name;
Consultant consultant = _repository.GetConsultant(id);
consultant = Mapper.Map<ConsultantViewModel, Consultant>(vm);
consultant.Id = id;
_repository.Save();
return RedirectToAction("Index");
}
Mapper.CreateMap<ConsultantViewModel, Consultant>().ForMember("Id", opts => opts.Ignore());
Mapper.CreateMap<Consultant, ConsultantViewModel>();
// GET: /Consultant/Edit/5
public ActionResult Edit(int id)
{
Consultant consultant = _repository.GetConsultant(id);
ConsultantViewModel vm = Mapper.Map<Consultant, ConsultantViewModel>(consultant);
return View(vm);
}
//
// POST: /Consultant/Edit/5
[HttpPost]
[ValidateInput(false)] //To allow HTML in description box
public ActionResult Edit(int id, ConsultantViewModel vm, FormCollection collection)
{
vm.UserName = User.Identity.Name;
Consultant consultant = _repository.GetConsultant(id);
consultant = Mapper.Map<ConsultantViewModel, Consultant>(vm, consultant);
_repository.Save();
return RedirectToAction("Index");
}
Line 698: if ((value != null))
Line 699: {
Line 700: ((IEntityWithRelationships)this).RelationshipManager.InitializeRelatedCollection<Program>("ConsultantsModel.ConsultantProgram", "Program", value);
Line 701: }
Line 702: }
Mapper.CreateMap<ConsultantViewModel, Consultant>().ForMember("Id", opts => opts.Ignore()).ForMember(
x => x.Programs, opts => opts.UseDestinationValue());
Mapper.CreateMap<Consultant, ConsultantViewModel>();
最佳答案
还没有得到任何答案,我实际上找到了一种方法来使它工作。还是感觉不太好,因为代码有点冗长……所以如果有人有更好的想法,请提出来!
我更改了它,以便我现在为子集合中的每个类型都有一个 DTO 对象(可能应该在使用 AutoMapper 时开始使用它)。因此,例如我现在有一个 ProgramDTO 类型来与 Program 映射。
我尝试简单地使用 Consultant 对象进行映射,希望嵌套集合能够自行解决,但再次出现“EntityCollection 已被初始化”错误。因此,我凭直觉尝试了这种方法:
private Consultant CreateConsultant(ConsultantViewModel vm, Consultant consultant) //Parameter Consultant needed because an object may already exist from Edit method.
{
Mapper.Map(vm, consultant);
//To do this I had to add an Ignore in the mapping configuration:
//Mapper.CreateMap<ConsultantViewModel, Consultant>().ForMember(x => x.Programs, opts => opts.Ignore());
//Delete items "marked for deletion" by removing with jQuery in the View:
var programs = consultant.Programs.Except(consultant.Programs.Join(vm.Programs, p => p.Id, d => d.Id, (p, d) => p)).ToList();
Delete(programs);
foreach (var programDto in vm.Programs)
{
Program program = consultant.Programs.SingleOrDefault(x => x.Id == programDto.Id);
if (program == null)
{
program = new Program();
consultant.Programs.Add(program);
}
program = Mapper.Map(programDto, program);
}
_repository.Save();
return consultant;
}
关于asp.net - 尝试将 AutoMapper 用于具有子集合的模型,在 Asp.Net MVC 3 中出现空错误,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/5126603/
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