ado.net-entity-data-model

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Entity Relationship Multiple 1:1's

I have an application where I have a generic object (table) called Hull.Each hull in the table is unique.[详细]

2022-12-30 06:20 分类：问答
Table and column naming conventions when plural and singular forms are odd or the same

In my search I found mostly arguments for whether to use plurality in database naming conventions, and ways to handle it in either case. I have decided I prefer plural table names, so I don\'t want to[详细]

2022-12-30 04:34 分类：问答
How do I setup a WCF Data Service with an ADO.NET Entity Entity Model in another assembly?

I have an ASP.NET 4.0 website that has an Entity Data Model hooked up to WCF Data Service.When the Service and Model are in the same assembly everything works.Unfortunately, when I move the Model to a[详细]

2022-12-29 15:33 分类：问答
MVC 2 - Name Attributes on HTML Input Field when using Parent/Child Entities

I\'m pretty new to MVC 2 using the Entity Framework. I have two tables Company {ID intidentity PK,Name nvarchar} and User {ID int identity PK,UserName nvarchar,CompanyID int FK}. A Foreign Key exists[详细]

2022-12-28 02:33 分类：问答
Association not imported in EF4 designer for non-primary key

The relationship \'FK_EXTERNAL_ISMARKETI_MARKET开发者_StackOverflow社区IN\' has columns that are not part of the key of the table on the primary side of the relationship. The relationship was excluded[详细]

2022-12-28 01:45 分类：问答
Generate Entity Data Model from Data Contract

I would like to find a fast way to convert a Data Contract to a Entity Data Model. Consider the following Data Contract:[详细]

2022-12-27 19:07 分类：问答
How to break-down my EF Model?

We have a database开发者_JS百科 app that we\'re beginning to write some new systems for and I want to redo our DAL, potentially using EF4. As I begin to look at this, it seems that it\'s a bad idea to[详细]

2022-12-26 23:11 分类：问答
Error: “An entity object cannot be referenced by multiple instances of IEntityChangeTracker"

I\'m currently using the repository pattern in an ASP.Net MVC project and have the following code: partial class Timesheet : ITimesheet[详细]

2022-12-26 16:23 分类：问答
How can I write list type returning value in Linq with Entity Framework?

How can I return List<personel> data type from below procedure. If开发者_运维百科 I press F5 it throw me this error:[详细]

2022-12-25 20:32 分类：问答
Generic list typecasting problem

I\'m new to C# and am stuck on the following. I have a Silverlight web service that uses LINQ to query a ADO.NET entity object. e.g.:[详细]

2022-12-24 06:26 分类：问答