如何在 WCF Ria Services/Linq2SQLDomainModel 中预先加载

发布于 2024-08-19 22:06:15 字数 411 浏览 12 评论 0原文

我的视图中有一个数据绑定网格（XAML），并且 Itemsource 指向 ReportsCollection。报告实体具有三个原语和一些复杂类型。这三个在数据网格中按预期显示。此外，Reports 实体还有一个 Store 类型的属性。当通过 GetReports 域方法加载报告时，我很快发现只返回基元，而不返回某个深度的整个图。因此，由于我也想加载 Store 属性，因此我在域服务中进行了此更改：

public IQueryable<Report> GetReports()
{
    return this.ObjectContext.Reports.Include("Store");
}

从我在立即窗口中看到的情况来看，商店已按预期加载，但当返回到客户端时仍会被修剪。如何解决这个问题？

谢谢你！

原文

I have a databound grid at my view (XAML) and the Itemsource points to a ReportsCollection. The Reports entity has three primitives and some complex types. These three are shown as expected at datagrid. Additionally the Reports entity has a property of type Store. When loading Reports via GetReports domain method, I quickly figure out that only primitives are returned and not the whole graph of some depth. So, as I wanted to load the Store property too, I made this alteration at my domain service:

public IQueryable<Report> GetReports()
{
    return this.ObjectContext.Reports.Include("Store");
}

From what I see at the immediate window, store is loaded as expected, but when returned to client is still pruned. How can this be fixed?

Thank you!

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乖乖公主 2024-08-26 22:06:15

使用 [Include] 修饰 ReportMetadata 类中的 Store 属性。

[MetadataTypeAttribute(typeof(Report.ReportMetadata))]
public partial class Report
{
    internal sealed class ReportMetadata
    {
        [Include]
        public Store Store;
    }
}

Decorate the Store property in the ReportMetadata class with [Include].

[MetadataTypeAttribute(typeof(Report.ReportMetadata))]
public partial class Report
{
    internal sealed class ReportMetadata
    {
        [Include]
        public Store Store;
    }
}

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