显示信息 - MVC 5

Question

我有一个产品型号这样

public class ProductViewModel 
{ 
    public int Id { get; set; } 
    public string Description { get; set; } 
    public bool IsActive { get; set; } 
    public ProductTypeFlag ProductType { get; set; } 

    public string BikeMake { get; set; } 
    public string BikeModel { get; set; } 

    public string CarMake { get; set; } 
    public string CarModel { get; set; } 

    public string TrainMake { get; set; } 
    public string TrainModel { get; set; } 
} 

public enum ProductTypeFlag 
{ 
    Bike = 0, 
    Car = 1, 
    Train = 2 
} 

正如你所看到的，我只有三个产品可供选择：自行车，汽车或火车。

我创建新的产品图片目前正在寻找这样的...在那里我有一个下拉列表中选择了ProductType

@model WebApplication14.Models.ProductViewModel 
 

 
@{ 
 
    ViewBag.Title = "Create"; 
 
} 
 

 
<h2>Create</h2> 
 

 

 
@using (Html.BeginForm()) 
 
{ 
 
    @Html.AntiForgeryToken() 
 
    
 
    <div class="form-horizontal"> 
 
     <h4>ProductViewModel</h4> 
 
     <hr /> 
 
     @Html.ValidationSummary(true, "", new { @class = "text-danger" }) 
 
     <div class="form-group"> 
 
      @Html.LabelFor(model => model.Description, htmlAttributes: new { @class = "control-label col-md-2" }) 
 
      <div class="col-md-10"> 
 
       @Html.EditorFor(model => model.Description, new { htmlAttributes = new { @class = "form-control" } }) 
 
       @Html.ValidationMessageFor(model => model.Description, "", new { @class = "text-danger" }) 
 
      </div> 
 
     </div> 
 

 
     <div class="form-group"> 
 
      @Html.LabelFor(model => model.IsActive, htmlAttributes: new { @class = "control-label col-md-2" }) 
 
      <div class="col-md-10"> 
 
       <div class="checkbox"> 
 
        @Html.EditorFor(model => model.IsActive) 
 
        @Html.ValidationMessageFor(model => model.IsActive, "", new { @class = "text-danger" }) 
 
       </div> 
 
      </div> 
 
     </div> 
 

 
     <div class="form-group"> 
 
      @Html.LabelFor(model => model.ProductType, htmlAttributes: new { @class = "control-label col-md-2" }) 
 
      <div class="col-md-10"> 
 
       @Html.EnumDropDownListFor(model => model.ProductType, htmlAttributes: new { @class = "form-control" }) 
 
       @Html.ValidationMessageFor(model => model.ProductType, "", new { @class = "text-danger" }) 
 
      </div> 
 
     </div> 
 

 
     <div class="form-group"> 
 
      @Html.LabelFor(model => model.BikeMake, htmlAttributes: new { @class = "control-label col-md-2" }) 
 
      <div class="col-md-10"> 
 
       @Html.EditorFor(model => model.BikeMake, new { htmlAttributes = new { @class = "form-control" } }) 
 
       @Html.ValidationMessageFor(model => model.BikeMake, "", new { @class = "text-danger" }) 
 
      </div> 
 
     </div> 
 

 
     <div class="form-group"> 
 
      @Html.LabelFor(model => model.BikeModel, htmlAttributes: new { @class = "control-label col-md-2" }) 
 
      <div class="col-md-10"> 
 
       @Html.EditorFor(model => model.BikeModel, new { htmlAttributes = new { @class = "form-control" } }) 
 
       @Html.ValidationMessageFor(model => model.BikeModel, "", new { @class = "text-danger" }) 
 
      </div> 
 
     </div> 
 

 
     <div class="form-group"> 
 
      @Html.LabelFor(model => model.CarMake, htmlAttributes: new { @class = "control-label col-md-2" }) 
 
      <div class="col-md-10"> 
 
       @Html.EditorFor(model => model.CarMake, new { htmlAttributes = new { @class = "form-control" } }) 
 
       @Html.ValidationMessageFor(model => model.CarMake, "", new { @class = "text-danger" }) 
 
      </div> 
 
     </div> 
 

 
     <div class="form-group"> 
 
      @Html.LabelFor(model => model.CarModel, htmlAttributes: new { @class = "control-label col-md-2" }) 
 
      <div class="col-md-10"> 
 
       @Html.EditorFor(model => model.CarModel, new { htmlAttributes = new { @class = "form-control" } }) 
 
       @Html.ValidationMessageFor(model => model.CarModel, "", new { @class = "text-danger" }) 
 
      </div> 
 
     </div> 
 

 
     <div class="form-group"> 
 
      @Html.LabelFor(model => model.TrainMake, htmlAttributes: new { @class = "control-label col-md-2" }) 
 
      <div class="col-md-10"> 
 
       @Html.EditorFor(model => model.TrainMake, new { htmlAttributes = new { @class = "form-control" } }) 
 
       @Html.ValidationMessageFor(model => model.TrainMake, "", new { @class = "text-danger" }) 
 
      </div> 
 
     </div> 
 

 
     <div class="form-group"> 
 
      @Html.LabelFor(model => model.TrainModel, htmlAttributes: new { @class = "control-label col-md-2" }) 
 
      <div class="col-md-10"> 
 
       @Html.EditorFor(model => model.TrainModel, new { htmlAttributes = new { @class = "form-control" } }) 
 
       @Html.ValidationMessageFor(model => model.TrainModel, "", new { @class = "text-danger" }) 
 
      </div> 
 
     </div> 
 

 
     <div class="form-group"> 
 
      <div class="col-md-offset-2 col-md-10"> 
 
       <input type="submit" value="Create" class="btn btn-default" /> 
 
      </div> 
 
     </div> 
 
    </div> 
 
} 
 

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

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

现在，我想要什么要做的只是显示与选定产品相关的产品信息。例如，如果我选择Bike作为产品，那么我只想看到BikeMake和BikeModel可用 - 即我不希望看到Car/Train-Model &模型在那里，因为它是无关紧要的。

Answer 1

您可以将与每种车型相关的属性分组到容器格中，并根据下拉列表中的选择条件隐藏/显示。

例如

<div my-section="section-0" style="display:none;"> 
    <div class="form-group"> 
     @Html.LabelFor(model => model.BikeMake, new { @class = "control-label col-md-2" }) 
     <div class="col-md-10"> 
      @Html.EditorFor(model => model.BikeMake, new { @class = "form-control" }) 
      @Html.ValidationMessageFor(model => model.BikeMake) 
     </div> 
    </div> 
</div> 
<div my-section="section-1" style="display:none;"> 
    <!-- Inputs for code car related fields goes here --> 
</div> 
<div my-section="section-2" style="display:none;"> 
    <!-- Inputs for Train related fields goes here --> 
</div> 

现在听的变化事件的SELECT元素上只显示div容器。

$(function() { 

    // Show the section for the current(default) selection of the dropdown 
    var t = $("#ProductType").val(); 
    var item = $("[my-section='section-" + t + "']").show(); 

    // Wire up change event code for dropdown 
    $("#ProductType").change(function (e) { 
     // Hide all the sections (including previously shown) 
     $("[my-section]").hide(); 

     //Select only the section corresponding the the dropdown selection 
     var item = $("[my-section='section-" + $(this).val() + "']").show(); 
    }) 
}); 

例如，如果您在下拉列表中选择第二项，jQuery选择代码$("[my-section='section-" + $(this).val() + "']")将返回DIV设置为"section-1"