entity-framework-4

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Delete Entity in Entity Framework 4.0

I have two tables without any cascade deleting, the two tables have 1 to many relation ship. When loading the entities that map that tables , and try to delete the parent entity then 2 scenarios will[详细]

2023-04-11 20:35 分类：问答
DeleteObject from Entity Framework loads the whole table?

I have run into a problem with Entity Framework. My code tries to delete 1 or more objects mostly less then 10 from a table.[详细]

2023-04-11 19:13 分类：问答
Reusing a join in LINQ

I have a number of queries (in a C# project) that all use the same join syntax, is there a simple way to move the join out of the query an into a \'function\' or \'template\' (for want of a better wor[详细]

2023-04-11 18:41 分类：问答
Weird SQL statement issued by EF4

I am profiling an Entity Framework v4.0 application and noticed the following SQL: exec sp_executesql N\'declare @p int[详细]

2023-04-11 17:56 分类：问答
Error getting foreign key data on entity

I\'m new in MVC2 and Entity Framework and I tried get a list of products with the respective category name, but it\'s returned me the error[详细]

2023-04-11 11:15 分类：问答
how to json seralize entity framework many to many relationships without circular reference

I have 3 tables in my database - Conference, ActivityTypes and a joining table ConferenceActivities.Each conference may have a zero or many standard activities and each activity may occur in zero or m[详细]

2023-04-11 08:40 分类：问答
Any disadvantages if using POCO + Entity Framework across the tiers and not using Data Transfer Objects?

Are there any disadvantages for using the same POCOs (in EF4 & WCF) across the tiers (DAL, BLL & Presentation) and doing without DTOs? The clients and services are al开发者_如何学Cl .NET &[详细]

2023-04-11 05:04 分类：问答
Is there any effective solution for full-text search in Entity Framework 4 that doesn't rely on Stored Procedures?

I\'m looking for a full-text search solution for Entity Framework 4. Stored Procedures cannot be considered because I have the nee开发者_C百科d to compose queries. That is, given a search term I need[详细]

2023-04-11 01:11 分类：问答
Entity Framework + SQL Azure: best practices for database changes

I\'m designing a database that it\'s not totally 开发者_开发问答defined yet, and as the project goes, it won\'t be defined very soon. However, the project will be online very soon, and database will b[详细]

2023-04-11 01:08 分类：问答
Firebird's Entity Model support

I downloaded Firebird 2.5 and read somewhere that it supports Entity Framework. When I add ADO.NET Entity Data Model in my project and try to update database with model, Visual Studio 2010 only displa[详细]

2023-04-10 23:54 分类：问答