Dec 14, 2015 Using Scaffolding to Create MVC Applications with Visual Studio Scaffolding is a great way of kick-starting model-view-controller (MVC) framework development. Visual Studio's MVC Scaffolding uses templates to generate the routine code that is common to all ASP.Net MVC builds, such as data access and Web API. Scaffolding in ASP.NET MVC. LastName and BirthDate. Id is an identity column that acts as a primary key. Next, you need to create a data model that matches the schema of Employee table. Notice that the name of the connection string (MvcScaffoldingDemoContext) is the same as the DbContext class generated during the scaffolding process.
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By Web Camps Team
If you are familiar with ASP.NET MVC 4 controller methods, or have completed the 'Helpers, Forms and Validation' Hands-On lab, you should be aware that many of the logic to create, update, list and remove any data entity it is repeated among the application. Not to mention that, if your model has several classes to manipulate, you will be likely to spend a considerable time writing the POST and GET action methods for each entity operation, as well as each of the views.
In this lab you will learn how to use the ASP.NET MVC 4 scaffolding to automatically generate the baseline of your application's CRUD (Create, Read, Update and Delete). Starting from a simple model class, and, without writing a single line of code, you will create a controller that will contain all the CRUD operations, as well as the all the necessary views. After building and running the simple solution, you will have the application database generated, together with the MVC logic and views for data manipulation.
In addition, you will learn how easy it is to use Entity Framework Migrations to perform model updates throughout your entire application. Entity Framework Migrations will let you modify your database after the model has changed with simple steps. With all these in mind, you will be able to build and maintain web applications more efficiently, taking advantage of the latest features of ASP.NET MVC 4.
Asp.net Mvc Scaffolding Has No Key Defined Database Generated Model Of History
Note
All sample code and snippets are included in the Web Camps Training Kit, available from at Microsoft-Web/WebCampTrainingKit Releases. The project specific to this lab is available at ASP.NET MVC 4 Entity Framework Scaffolding and Migrations.
Objectives
In this Hands-On Lab, you will learn how to:
Prerequisites
You must have the following items to complete this lab:
Setup
Installing Code Snippets
For convenience, much of the code you will be managing along this lab is available as Visual Studio code snippets. To install the code snippets run .SourceSetupCodeSnippets.vsi file.
If you are not familiar with the Visual Studio Code Snippets, and want to learn how to use them, you can refer to the appendix from this document 'Appendix B: Using Code Snippets'.
Exercises
The following exercise make up this Hands-On Lab:
Note
This exercise is accompanied by an End folder containing the resulting solution you should obtain after completing the exercise. You can use this solution as a guide if you need additional help working through the exercise.
Asp.net Mvc Scaffolding Has No Key Defined Database Generated Model Of Life
Estimated time to complete this lab: 30 minutes
Exercise 1: Using ASP.NET MVC 4 Scaffolding with Entity Framework Migrations
ASP.NET MVC scaffolding provides a quick way to generate the CRUD operations in a standardized way, creating the necessary logic that lets your application interact with the database layer.
In this exercise, you will learn how to use ASP.NET MVC 4 scaffolding with code first to create the CRUD methods. Then, you will learn how to update your model applying the changes in the database by using Entity Framework Migrations.
Task 1- Creating a new ASP.NET MVC 4 project using Scaffolding
Inside the Person controller
Task 2- Running the application
At this point, the database is not yet created. In this task, you will run the application for the first time and test the CRUD operations. The database will be created on the fly with Code First.
Task 3- Updating the database using Entity Framework Migrations![]()
In this task you will update the database using Entity Framework Migrations. You will discover how easy it is to change the model and reflect the changes in your databases by using the Entity Framework Migrations feature.
Updating the controller
Task4- Running the application
SummaryAsp.net Mvc Scaffolding Has No Key Defined Database Generated Model Of India
In this Hands-On lab, you have learned simple steps to create CRUD operations with ASP.NET MVC 4 Scaffolding using any model class. Then, you have learned how to perform an end to end update in your application -from the database to the views- by using Entity Framework Migrations.
Appendix A: Installing Visual Studio Express 2012 for Web
You can install Microsoft Visual Studio Express 2012 for Web or another 'Express' version using the Microsoft Web Platform Installer. The following instructions guide you through the steps required to install Visual studio Express 2012 for Web using Microsoft Web Platform Installer.
Appendix B: Using Code Snippets
With code snippets, you have all the code you need at your fingertips. The lab document will tell you exactly when you can use them, as shown in the following figure.
Using Visual Studio code snippets to insert code into your project
Asp.net Mvc Scaffolding Has No Key Defined Database Generated Model Of Water
To add a code snippet using the keyboard (C# only)
Start typing the snippet name
Press Tab to select the highlighted snippet
Press Tab again and the snippet will expand
To add a code snippet using the mouse (C#, Visual Basic and XML) 1. Right-click where you want to insert the code snippet.
Right-click where you want to insert the code snippet and select Insert Snippet
Pick the relevant snippet from the list, by clicking on it
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