What is ViewModel used for?

The ViewModel class is designed to store and manage UI-related data in a lifecycle conscious way. The ViewModel class allows data to survive configuration changes such as screen rotations. The Android framework manages the lifecycles of UI controllers, such as activities and fragments.

Is a ViewModel and DTO?

ViewModel is a Model for a View. It’s like a DTO, however specialized for a presentation, which can be the result of an API call or the page in a Web Application. It generally accepts a DTO as input and adds information and methods specifically targeted to the View in question.

What is the difference between View and ViewModel?

ViewModel is a “data container” only. View Model: This represents an object that you want your end users to view/edit/etc. A view model could contain properties from several or no domain models and typically exclude properties that your end users should not be mucking with.

What is RenderBody and RenderPage in MVC?

The RenderBody method indicates where view templates that are based on this master layout file should “fill in” the body content. RenderPage. Layout pages can also contain content that can be filled by other pages on disk. This is achieved by using the RenderPage method. This method takes either one or two parameters.

What should ViewModel contain?

The simplest kind of viewmodel to understand is one that directly represents a control or a screen in a 1:1 relationship, as in “screen XYZ has a textbox, a listbox, and three buttons, so the viewmodel needs a string, a collection, and three commands.” Another kind of object that fits in the viewmodel layer is a …

What is difference between ViewModel and model?

ViewModel is a “data container” only. A model is simply a representation of an object in your application. View Models should only contain the elements that are needed to display the appropriate data to the end user for a specific request.

How can use ViewModel in ASP NET MVC with example?

ViewModel In MVC With Example

1. Step 1: Create a new MVC Application, By Selecting Empty Template and adding MVC Core Reference.
2. Step 2: Now Add a class in Model and give a name ‘Stuent. cs’.
3. Step 3: Create a Student Property like Roll no, Name and Marks. public class Student. { public int RollNo. { get; set; }