Recently I got strange exception when trying to start my EF 6 based application. The problem started to happen after I updated some of Microsoft nuget packages.
By Mirek on (tags: Code First, ef core, Entity Framework, SqlServer, SSL, categories: code, security)We finally got it – native support for SqlSever temporal tables in Entity Framework Core. Among others this is the most requesting feature in EF 6. Let’s see what it tastes like…
By Mirek on (tags: Code First, EF, ef core, Entity Framework, SQL Server, Temporal Tables, categories: architecture, code)A time ago I wrote a post about enabling support for SqlServer Temporal tables in EF Core. Then it was EF Core 2.1. Let’s see what has changed during that time and what we can do today with EF Core 5 in terms of Temporal table support.
By Mirek on (tags: EF, Entity Framework, .Net 5, SQL Server, Temporal Tables, categories: architecture, code)Today I want to show an example of how great are value converters in EF Core.
By Mirek on (tags: ef core, Entity Framework, ORM, ValueConverters, categories: code)Although SQL Server Temporal Tables feature is not natively supported in Entity Framework Core, there is a way you can still use it together with EF Core. Read on to see how we can, quite nicely, integrate it with the Entity Framework.
By Mirek on (tags: Entity Framework, SQL Server, Temporal Tables, categories: code)In this post I am going to show you a small Entity Framework code first trick. When you remove an entity from the context its state is set to Deleted and all its navigation properties are nulled. This is done by DbContext internally. However you might want to know what was the related entities (navigation properties) before the entity was deleted. For instance you want to create some audit logs of deleted entity. I will show you how to do it with minimal effort.
By Mirek on (tags: Code First, Entity Framework, navigation property, categories: code)In this post I am going to present my solution for handling optimistic concurrency scenarios in Entity Framework. This solution is somehow an extension of recommended approaches presented on MSDN Entity Framework learning center here.
By Mirek on (tags: database concurrency, Entity Framework, categories: code)A time ago I have been writing about the Sql Server application roles, what are the benefits of using them and what are the limitations when we want to incorporate the Entity Framework to use application role. Today I will show you how to workaround those limitations with new Entity Framework facility introduced in version 6 of the framework.
By Mirek on (tags: Application Role, Entity Framework, SQL Server, categories: architecture, code)The XML data type allows storing a xml content in our SQL Server database. The great feature is that we can also attach an XSD schema to it and have the xml content automatically validated. Here I am going to show you how to set it up together with Entity Framework Code First.
By Mirek on (tags: Entity Framework, SQL Server, XML, XSD, categories: architecture, code)Entity Framework migrations is indeed a great feature. It makes you don’t need to worry about the database schema updates almost at all. There are however few things you must know to properly understand and use EF migrations. This post describes few of those things.
By Mirek on (tags: Entity Framework, migrations, categories: architecture, tools, code)