How do I create and use view models in ASP.NET Core MVC?

Creating and Using View Models in ASP.NET Core MVC Introduction ASP.NET Core MVC is a powerful framework for building web applications, and understanding how to work with view models is crucial for effective development. In this guide, we'll explore the creation and usage of view models in ASP.NET Core MVC. What are View Models? Definition: View models are classes that shape the data specifically for a view. Purpose: They help in separating concerns by providing a dedicated model for a view, preventing the direct exposure of domain models to the views. Creating View Models Create a New Class: Use the class keyword to define a new class. csharp public class MyViewModel { // Properties representing data needed for the view public string Property1 { get; set; } public int Property2 { get; set; } } Populate View Model in Controller: In your controller, create an instance of the view model and populate its properties with data. csharp public IActionResult MyAction() { MyViewModel viewModel = new MyViewModel { Property1 = "Value1", Property2 = 42 }; return View(viewModel); } Using View Models in Views Define the Model at the Top of the View: Use the @model directive to specify the type of the view model. csharp @model MyNamespace.MyViewModel Access Properties in the View: Reference the properties of the view model using Model.PropertyName. html <p>@Model.Property1</p> <p>@Model.Property2</p> Benefits of Using View Models Encapsulation: View models encapsulate the data required for a specific view, promoting a clean separation of concerns. Flexibility: Changes in domain models don't directly affect views, providing flexibility during development. Testability: View models can be easily tested independently of the views and controllers. Best Online Coaching for .Net Training When learning about ASP.NET Core MVC and view models, consider enrolling in online coaching programs. Look for courses that cover the following: In-depth understanding of ASP.NET Core MVC. Practical sessions on creating and using view models. Real-world examples and projects to reinforce learning. Conclusion Mastering the creation and usage of view models in ASP.NET Core MVC is essential for building scalable and maintainable web applications. Enroll in reputable online coaching programs for .Net Training to gain hands-on experience and guidance from experienced tutors. read less