poco

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InvalidOperationException on Attaching POCO entity to context

I\'m experiencing a trouble with attaching a POCO entity to its context.I\'m getting an InvalidOperationException with the following message:[详细]

2023-03-16 01:25 分类：问答
Entity Framework 4 Code First, Complex Many to Many relationship

I\'ve seen several examples of many to many relationships in EF using code-first, but I\'ve run into a situation that I\'m not sure how to solve.[详细]

2023-03-14 16:40 分类：问答
Using base class for object creates problems for EF4.1 POCO

On a new project I\'d like to use the \"Code First\" feature of Entity Framework to set up my data store.[详细]

2023-03-14 07:17 分类：问答
Entity Framework 4.1 reverse engineering code-only

I am using Entity Framework 4.1 and want to take advantage of their code-only approach. In the video located at http://channel9.msdn.com/Events/TechEd/Europe/2010/DEV212 starting at 35:00 minutes in t[详细]

2023-03-13 20:24 分类：问答
Deleting child objects in Entity Framework when using POCO

I\'m using POCO with EF4 and have problem deleting a child object from the parent. Consider the following scenario:[详细]

2023-03-13 14:13 分类：问答
C# POCO Generation from SQLite database

Is there a way of generating POCO classes from a SQLite database? Similar to how sqlmetal can do for sql server?[详细]

2023-03-13 07:41 分类：问答
Linking POCO C++ Library gives numerous memory leaks

I\'ve just started trying to integrate the Poco C++ 开发者_JS百科Library with our game engine, however every time I link /usr/lib/libPocoFoundation.so my program suddenly has 51 memory leaks. Removing[详细]

2023-03-13 06:54 分类：问答
select certain fields from dbset<t>

I am using EF4.1, and for performance issues I need to select only a few fields from a DbSet which is mapped to a view on the sql server.[详细]

2023-03-12 17:41 分类：问答
Error when updating PK with EF

I´m trying to do an update in an Order_Details table of Northwind database using EF 4.1 (POCO). The table is defined as:[详细]

2023-03-12 08:01 分类：问答
Circular reference in XmlSerialize

I am using a T4 text template to generate DTO POCOs to use against my NHibernate domain model. These POCOs are to be sent to the client using ASMX web services (To be compatible with Mono) but if I d[详细]

2023-03-10 01:56 分类：问答