Download Entity Framework Tutorial by Joydip Kanjilal PDF

By Joydip Kanjilal

Take your ADO.NET wisdom to the following point and construct a greater facts layer with this transparent educational to the Entity Framework. This publication is for C# builders who wish a better solution to create their facts entry layer. it is important to be pleased with ADO.NET, yet you don't want to understand whatever in regards to the Entity Framework. alongside the best way we are going to create a few ASP.NET functions, so being accustomed to this can additionally support

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NET Entity Data Source Control Data controls are those that can be bound to data from external data sources. These data sources may include databases, XML files, or even flat files. 0 introduced some data source controls with a powerful data binding technique so the need for writing lengthy code for binding data to data controls has been eliminated. NET, the term Data Binding implies binding the controls to data retrieved from a data source and providing a read or write connectivity between these controls and the data that they are bound to.

Such traversals become a nightmare as you add additional tables and you therefore require more complex joins. NET Entity Framework When you implement your Object Model using Object Oriented Programming Languages, you expose the object's relationships with other objects of its kind using properties. This is in contrast to the approach we just discussed. Hence, designing an Object Model using this approach is cumbersome. This is exactly where the ADO. NET Entity Framework fits in; it represents the conceptual and logical model of data while using grammar that is common to both.

Select Generate from database from the Entity Data Model Wizard as shown in the following screenshot: [ 40 ] Chapter 2 Note that you can also use the Empty model template to create the Entity Data Model yourself. If you select the Empty Data Model template and click on next, the following screen appears: As you can see from the above figure, you can use this template to create the Entity Data Model yourself. You can create the Entity Types and their relationships manually by dragging items from the toolbox.

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