随笔分类 - Entity Framework 6
摘要：The default Way to handle concurrency of Entity Framework is using optimistic concurrency . When two clinets update the same entity, one of theirs dat
阅读全文
摘要：Joins allow developers to combine data from multiple tables into a sigle query. Let's have a look at codes: Creating a project 1. Create a project nam
阅读全文
摘要：Complex types are classes that map to a subset of columns of a table.They don't contains key. They are the Value Objects . For example, you have a ent
阅读全文
摘要：Sometimes, you need to find some data in an existing context instead of the database. By befault, Entity Framework always find data in database. If yo
阅读全文
摘要：Creating Entities First of all, Let's create some entities to have a test. 1. Create a project 2. Add following packages by NuGet EntityFramework MySq
阅读全文
摘要：There are three types of relationships in database. They are: One to Many One to One Many to Many The One to Many relationship Write some codes first:
阅读全文
摘要：There are three ways to define the database structure by Entity Framework API. They are: Attributes The DbModelBuilder API Configuration Classes Attri
阅读全文
摘要：Sometimes, you have created two models. They have the same parent class like this: public class Person { public int PersonId { get; set; } public stri
阅读全文
摘要：Sometimes, you've created a table for example named Person . Just then, you want to add some extra information, but don't want to add any new field in
阅读全文
摘要：Sometimes, We want to check the original sql statements. creating a commandInterceptor is a good way to do this. Add a class named MyCommandIntercepto
阅读全文
摘要：一个使用mysql的entity framework的例子
阅读全文