Question

我是MVC4的新开发人员，我想检查数据库中的数据复选框。我创建了一个模型服务

[Table("Servicos")]
//[Bind(Exclude = "ServicoId")]
public class Servicos
{
    public Servicos()
    {
        TaxasList = new Collection<Taxas>();
    }

    //[ScaffoldColumn(false)]
    [Key]
    public int ServicoId { get; set; }

    //[Required(ErrorMessage = "Campo obrigatório")]
    [DisplayName("Título")]
    //[StringLength(100)]
    public string Titulo { get; set; }

    //[Required(ErrorMessage = "Campo obrigatório")]
    [DisplayName("Tempo previsto (horas)")]
    public decimal TempoPrevistoHora { get; set; }

    //[Required(ErrorMessage = "Campo obrigatório")]
    [DisplayName("Tempo previsto (dias)")]
    public int TempoPrevistoDias { get; set; }

    //[Required(ErrorMessage = "Campo obrigatório")]
    [DisplayName("Custo da hora)")]
    public decimal CustoHora { get; set; }

    //[Required(ErrorMessage = "Campo obrigatório")]
    [DisplayName("Custo do serviço")]
    public decimal CustoServico { get; set; }

    //[ScaffoldColumn(false)]
    public decimal TotalTaxas { get; set; }

    public ICollection<Taxas> TaxasList { get; set; } 

    public override bool Equals(object obj)
    {
        var servParam = (Servicos)obj;
        if (ServicoId == servParam.ServicoId || Titulo == servParam.Titulo)
            return true;
        return false;
    }

和税收模式：

[Table("Taxas")]
//[Bind(Exclude = "TaxasId")]
public class Taxas
{
    //[ScaffoldColumn(false)]
    [Key]
    public int TaxasId { get; set; }

    //[Required(ErrorMessage = "Campo obrigatório")]
    //[DisplayName("Descrição da taxa")]
    //[StringLength(100)]
    public string DescricaoTaxa { get; set; }

    //[Required(ErrorMessage = "Campo obrigatório")]
    //[DisplayName("Porcentagem")]
    //[Range(0.01, 100.00, ErrorMessage = "Porcentagem deve estar entre 0.01 e 100.00")]
    public decimal Porcentagem { get; set; }

    //[ScaffoldColumn(false)]
    public bool Ativo { get; set; }

    //[ScaffoldColumn(false)]
    //[DataType(DataType.DateTime)]
    public DateTime? DataCriacao { get; set; }

    public ICollection<Servicos> Servicos { get; set; } 


    public override bool Equals(object obj)

    {
        var taxParam = (Taxas)obj;
        return TaxasId == taxParam.TaxasId || DescricaoTaxa == taxParam.DescricaoTaxa;
    }
}

我正在使用Fluent API，当项目生成数据库时，它会创建第三个表TaxasServicos，因为服务（servico）有很多税（Taxas）..

在服务控制器索引中，我显示服务中的所有税款。

public ActionResult Index()
    {
        var servicos = db.Servicos.Include(s => s.TaxasList);
        return View(servicos);
    }

在编辑模式下，我传递所有税（Taxas）并使用View将其传递给ViewData。

// GET: /Services/Edit/5

    public ActionResult Edit(int id = 0)
    {
        Servicos servicos = db.Servicos.Find(id);

        ViewData["TaxasList"] = db.Servicos.Include(t => t.TaxasList);



        if (servicos == null)
        {
            return HttpNotFound();
        }

        List<Taxas> taxases = (from t in db.Taxas select t).ToList();
        ViewData["lstTaxas"] = taxases;
        return View(servicos);
    }

    //
    // POST: /Services/Edit/5

    [HttpPost]
    public ActionResult Edit(Servicos servicos)
    {
        if (ModelState.IsValid)
        {
            db.Entry(servicos).State = EntityState.Modified;
            db.SaveChanges();
            return RedirectToAction("Index");

        }
        return View(servicos);

    }

直到这里，一切运作良好，但我无法查看与服务（Servico）有关系的复选框。有人可以帮我解决这个问题吗？

我的Edit.cshtml：

    @using appSharpNet.Models
@model appSharpNet.Models.Servicos

@{
    ViewBag.Title = "Editar";
}

<h2>Edit</h2>

@using (Html.BeginForm()) {
    @Html.ValidationSummary(true)

    <fieldset>
        <legend>Serviços</legend>

        @Html.HiddenFor(model => model.ServicoId)

        <div class="editor-label">
            @Html.LabelFor(model => model.Titulo)
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.Titulo)
            @Html.ValidationMessageFor(model => model.Titulo)
        </div>

        <div class="editor-label">
            @Html.LabelFor(model => model.TempoPrevistoHora)
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.TempoPrevistoHora)
            @Html.ValidationMessageFor(model => model.TempoPrevistoHora)
        </div>

        <div class="editor-label">
            @Html.LabelFor(model => model.TempoPrevistoDias)
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.TempoPrevistoDias)
            @Html.ValidationMessageFor(model => model.TempoPrevistoDias)
        </div>

        <div class="editor-label">
            @Html.LabelFor(model => model.CustoHora)
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.CustoHora)
            @Html.ValidationMessageFor(model => model.CustoHora)
        </div>

        <div class="editor-label">
            @Html.LabelFor(model => model.CustoServico)
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.CustoServico)
            @Html.ValidationMessageFor(model => model.CustoServico)
        </div>

        <div class="editor-label">
            @Html.LabelFor(model => model.TotalTaxas)
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.TotalTaxas)
            @Html.ValidationMessageFor(model => model.TotalTaxas)
        </div>
        <div class="editor-label">
            @Html.LabelFor(model => model.TaxasList)
        </div>            
        <div class="editor-field">
            @{
                var taxases = ViewData["lstTaxas"] as List<Taxas>;
                if (taxases != null)
                {
                    foreach (var taxase in taxases)
                    {

                        @Html.CheckBox("check", false, new { value = taxase.TaxasId });<label>@taxase.DescricaoTaxa</label>  
                    }




                }
            }

        </div>
        <p>
            <input type="submit" value="Salvar" />
        </p>
    </fieldset>
}

<div>
    @Html.ActionLink("Back to List", "Index")
</div>

@section Scripts {
    @Scripts.Render("~/bundles/jqueryval")
}

Answer 1

好的，我找到了解决方案。

有兴趣使用流畅的API学习MVC4，我建议您查看这篇文章The Contoso University by Tom Dykstra。

我需要在项目中进行一些更改以解决我的问题，我在第3部分找到了Contoso大学的解决方案link。

如何使用MVC4动态选中复选框

1 个答案: