Glass Mapper v4 InferType Cast问题

Question

我无法理解为什么Glass Mapper无法以正确的方式投射对象,如下所述, 我有下一课

 public class BC
    {
        [SitecoreId]
        public virtual ID Id { get; set; }        
    }

public class WB : BC
    {
        [SitecoreField(FieldName = "P1")]
        public virtual Glass.Mapper.Sc.Fields.Link P1 { get; set; }
    }

 [SitecoreType(TemplateId = "{XXX}", AutoMap = true, EnforceTemplate = SitecoreEnforceTemplate.Template)]
    public class AAA : WB 
    {
        public virtual string AAAP1 { get; set; }
        public virtual DateTime AAAP2 { get; set; }
    }
 [SitecoreType(TemplateId = "{VVV}", AutoMap = true, EnforceTemplate = SitecoreEnforceTemplate.Template)]
public class BBB : WB 
    {
        public virtual string BBBp1 { get; set; }
        public virtual DateTime BBBp2 { get; set; }
    }

[SitecoreType(TemplateId = "{YYY}", AutoMap = true)]
    public class RazorRenderClass: BC
    {                      
        [SitecoreChildren(InferType = true)]
        public virtual IEnumerable<WB> Children { get; set; }

        [SitecoreChildren(InferType = true)]
        public virtual IEnumerable<AAA> AAACh { get; set; }

        [SitecoreChildren(InferType = true)]
        public virtual IEnumerable<BBB> BBBCh { get; set; }
    }

在razor视图中,如果我使用Children属性,我无法获得AAA或BBB对象,

 @foreach (var child in Model.Children)
    {
        if (child is BBB)
        {
            var news = child as BBB;
            <li>
                11
            </li>
        }
        else if (child is AAA)
        {
            var evt = child as AAA;
            <li>
               222
            </li>
        }
    }

更有趣的是,如果我在cshtml上使用调用BBBCh或AAACh属性,我可以看到(在调试时)Children属性包含正确的项目(对象)但是如果我尝试从Children属性中获取任何项目

  var detailWidget = Model.Children.FirstOrDefault();

它会转向WB类.我能用它做什么？

Answer 1

我的版本 4.0.5.54 遇到了完全相同的问题。

我的解决方案是将子类型指定为属性，就像您对 AAACh 和 BBBch 所做的那样。但设置时无需延迟加载它们。

[SitecoreType(TemplateId = "{YYY}", AutoMap = true)]
public class RazorRenderClass: BC
{                      
    [SitecoreChildren(InferType = true, IsLazy = false)]
    public virtual IEnumerable<WB> Children { get; set; }

    [SitecoreChildren(InferType = true, IsLazy = false)]
    public virtual IEnumerable<AAA> AAACh { get; set; }

    [SitecoreChildren(InferType = true, IsLazy = false)]
    public virtual IEnumerable<BBB> BBBCh { get; set; }
}

我真的不喜欢我必须指定 AAACh 和 BBBch 作为属性。在 glassmapper v3 中，以下内容就足够了。

[SitecoreType(TemplateId = "{YYY}", AutoMap = true)]
public class RazorRenderClass: BC
{                      
    [SitecoreChildren(InferType = true)]
    public virtual IEnumerable<WB> Children { get; set; }
}