自定义属性值转换一把umbraco返回空

这是我的代码自定义属性值转换一把umbraco返回空

@inherits Umbraco.Web.Mvc.UmbracoTemplatePage<ContentModels.HomePage> 
@using ContentModels = Umbraco.Web.PublishedContentModels; 
@using System.Web.Script.Serialization; 
@using Newtonsoft.Json.Linq; 
@using System.Collections.Generic; 
@using Umbraco.Core.Models.PublishedContent; 
@using Umbraco.Core.PropertyEditors; 
@using Newtonsoft.Json; 
@using System.Linq; 


@{ 
    Layout = "Master1.cshtml"; 
} 


    <!-- Top menu --> 
     @*@Html.Partial("TopMenu")*@ 
     <!-- End top menu --> 
     <!-- Main nav --> 
     @Html.Partial("MainMenu") 
     <!-- Main nav ends --> 

@Html.Partial("PromoCarousel") 

<div class="landing-page"> 
    @CurrentPage.GetGridHtml("bodyText") 
</div> 
<div class="col-lg-12"> 
    @Umbraco.Field("promo") 
</div> 




@{ 

    if (CurrentPage.HasValue("promo")) 
    { 
     var promoListValue = CurrentPage.GetPropertyValue("promo"); 



    var serializer = new JavaScriptSerializer(); 
    string json = serializer.Serialize(promoListValue); 
     var testmodel = serializer.DeserializeObject(json); 


    @* foreach (var item in promoListValue) 
      { 
       <span>@item </span> 
      } 

      @Html.Raw(json) 
      @Html.Raw(Json.Encode(json)) 
      *@ 
      @Html.Raw(testmodel) 

      var obj = Model.Content.GetPropertyValue<MyLookAlikeArchetypeModel>("promo"); 
      <span>@obj </span> 
      foreach(var item in obj) 
       { 
        <p>@item.img</p> 
        <p>@item.alias</p> 
       } 

    } 



} 



<div class="container _borderless landingpage"> 

</div> 
@functions { 



public class MyLookAlikeArchetypeFieldSet 
{ 
    [JsonProperty("alias")] 
    public string alias { get; set; } 

    [JsonProperty("img")] 
    public string img { get; set; } 
} 

public class MyLookAlikeArchetypeModel 
{ 
    private List<MyLookAlikeArchetypeFieldSet> _Items; 

    public MyLookAlikeArchetypeModel() 
    { 
     _Items = new List<MyLookAlikeArchetypeFieldSet>(); 
    } 

    public MyLookAlikeArchetypeModel(List<MyLookAlikeArchetypeFieldSet> list) 
    { 
     _Items = list; 
    } 

    public IEnumerator<MyLookAlikeArchetypeFieldSet> GetEnumerator() 
    { 
     return _Items.GetEnumerator(); 
    } 

    public bool Any() 
    { 
     return _Items.Any(); 
    } 
} 

public class MyLookAlikeArchetypeModelPropertyConverter : IPropertyValueConverter 
{ 
    public object ConvertDataToSource(PublishedPropertyType propertyType, object source, bool preview) 
    { 
     return source; 
    } 

    public object ConvertSourceToObject(PublishedPropertyType propertyType, object source, bool preview) 
    { 
     try 
     { 
      var list = JsonConvert.DeserializeObject<List<MyLookAlikeArchetypeFieldSet>>(source as string); 
      return new MyLookAlikeArchetypeModel(list); 
     } 
     catch 
     { 
      return new MyLookAlikeArchetypeModel(); 
     } 
    } 

    public object ConvertSourceToXPath(PublishedPropertyType propertyType, object source, bool preview) 
    { 
     return null; 
    } 

    public bool IsConverter(PublishedPropertyType propertyType) 
    { 
     return propertyType.PropertyEditorAlias.Equals("My.Plugin.Package.Manifest.Alias"); 
    } 
} 
}

但OBJ返回为空

var obj = Model.Content.GetPropertyValue<MyLookAlikeArchetypeModel>("promo");

为CurrentPage.GetPropertyValue("promo");

[ { "alias": "1", "content": "1", "img": "/media/1069/509253678.jpg" }, { "alias": "Slide 2", "content": "2", "img": "/media/1074/636609180.jpg" } ]

任何帮助的反应可以理解

来源

2017-06-14 Gayathri Mohan

贝利将您的“@functions定义”一个file.cs内（文件夹里面App_Code文件，如果你不想编译） – Eyescream

您是否尝试过坚持一些断点或登录到'IsConverter'和'ConvertSourceToObject'方法？首先确认你的房产价值转换器甚至可以作为umbraco中的一个PropertyValueConverter被挑选出来。还有一个'PropertyValueConverterBase'，你可以从中继承。反过来，它继承自'IPropertyValueConverter'接口，除了用一些可以覆盖的默认虚拟方法实现接口外，别的什么都不做。这不会解决你的问题，但我喜欢它比直接从界面继承。 – bowserm

为什么你不只是反序列化它。

这样的事情......（抱歉没有测试）

 var object = JsonConvert.DeserializeObject<MyLookAlikeArchetypeModel> (archetypeValueAsString); 

     foreach (var item in object) 
     { 
      var Img = item.GetValue<string>("img"); 
     }

来源

2017-06-14 14:51:47

自定义属性值转换一把umbraco返回空

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