navigation-properties

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Should an Entities Navigational Properties be pre-loaded or lazy-loaded over a WCF service?

We are using Self-Tracking Entities over a WCF service. Entities get ret开发者_如何转开发urned to the client without their Navigational properties loaded.[详细]

2023-03-02 03:37 分类：问答
Exact purpose of Entity Framework navigation properties

please have a look at the following POCOs: public class Country { [Key] 开发者_Go百科public Guid ID { get; set; }[详细]

2023-02-19 17:36 分类：问答
DropDownList DataTextField on Navigation property

i need some help with the following. i get a list of objects from the Entity Framework data context. var list = context.EntityA;[详细]

2023-02-07 08:24 分类：问答
Entity Framework - Add Navigation Property Manually

I generated an 开发者_开发技巧Entity Framework Model (4.0) from my database. I did not design the database and do not have any control over the schema, but there are a few tables that do not have fore[详细]

2023-01-30 19:32 分类：问答
Entity Framework - Querying Inheritance

I was tasked as a homework assignment to make a task tracker. I wanted to learn entity framework for this assignment, especially how to use the inheritance aspects. Projects, tasks and sub-tasks all h[详细]

2023-01-28 10:38 分类：问答
Entity framework and UPDATE CASCADE

A bit frustrated over here. I\'m trying to find a way to support update cascading with the entity framework, and there doesn\'t seem to be a built-in way. Research on the net basically shows everyone[详细]

2023-01-24 11:59 分类：问答
Entity Framework: Why do navigation properties disappear after a group by?

I retrieve a collection with the following query: var numbers = _betDetailItem.GetBetDetailItems().Where(betDetailItem => betDetailItem.BetDetail.Bet.DateDr开发者_开发问答awing == resultToCreate.D[详细]

2022-12-19 17:49 分类：问答
EF4 POCO - Updating a navigation property

I have a Recommendation object and a FeedbackLevel object and the FeedbackLevel object is a navigation property inside a Recommendation object[详细]

2022-12-16 07:15 分类：问答
EF4 POCO one to many Navigation property is null

I\'m using VS2010, EF4 feature CTP (latest release), and POCO objects, such as the example below: class Person[详细]

2022-12-15 23:05 分类：问答
Eager Loading on tracked items?

I have an element bound to an entity (C开发者_开发知识库ontact) that exposes some navigation properties.[详细]

2022-12-13 06:38 分类：问答