Wpf datagrid row validation not updating

There is a one-to-many relationship between the CREATE TABLE [dbo].[Department] ( [Department Id] INT IDENTITY (1, 1) NOT NULL, [Name] VARCHAR (50) NULL, PRIMARY KEY CLUSTERED ([Department Id] ASC) ); CREATE TABLE [dbo].[Employee] ( [Employee Id] INT IDENTITY (1, 1) NOT NULL, [Department Id] INT NOT NULL, [First Name] VARCHAR (20) NOT NULL, [Last Name] VARCHAR (20) NOT NULL, [Email] VARCHAR (50) NULL, PRIMARY KEY CLUSTERED ([Employee Id] ASC), CONSTRAINT [FK_Employee_Department] FOREIGN KEY ([Department Id]) REFERENCES [dbo].[Department] ([Department Id]) ); A large enterprise application will typically have one or more databases to store data and on top of this a data access layer (DAL) to access the database(s).

Typically when you are doing database first development using EF you are targeting an already existing database but for testing and demo purposes you may of course generate a new one from scratch.

Show Metro Dialog Async(new Custom Base Metro Dialog()); // create and show custom dialog with own settings await this.

Show Metro Dialog Async(new Custom Base Metro Dialog(this.metro Dialog Settings)); // or await this.

This post is about how you can develop a generic data access layer (DAL) with full CRUD (Create, Read, Update and Delete) support using Entity Framework 5 with plain old CLR objects (POCOs) and short-lived contexts in a disconnected and stateless N-tier application.

Entity Framework (EF) is Microsoft’s recommended data access technology when building new . It is an object-relational mapping framework (ORM) that enables developers to work with relational data using domain-specific objects without having to write code to access data from a database.

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