Asp net mvc strongly typed view with two lists of same type

ASP.NET MVC provides a powerful feature called strongly typed views, which allows us to pass data from the to the view in a type-safe manner. In this article, we will explore how to create a strongly typed view in ASP.NET MVC that contains two lists of the same type.

To begin, let's assume we have a model class called “Person” with properties such as “Name” and “Age”. Our goal is to create a view that displays two lists of persons, one for “Adults” and for “Children”.

First, we need to create a controller that retrieves the data and passes it to the view. Here's an example of how the controller action might look like:


 ActionResult Index()
{
    List adults = GetAdults();
    List children = GetChildren();

    var model = new PersonListsViewModel
    {
        Adults = adults,
        Children = children
    };

     View(model);
}

In the above code, we retrieve the lists of adults and children using some hypothetical methods called “GetAdults()” and “GetChildren()”. We then create an instance of a view model class called “PersonListsViewModel” and populate its properties with the retrieved data. Finally, we pass the view model to the view using the “View()” method.

Now, let's move on to the view itself. We need to define the view model class and use it as the model for our view. Here's an example of how the view might look like:


@model PersonListsViewModel

Adults

@ (var person in Model.Adults) {

@person.Name - @person.Age

}

Children

@foreach (var person in Model.Children) {

@person.Name - @person.Age

}

In the above code, we first declare the view model class using the “@model” directive. This tells ASP.NET MVC that the view expects a model of type “PersonListsViewModel”. We then use the “foreach” loop to iterate over the lists of adults and children, and display the name and age of each person using the “@person.Name” and “@person.Age” syntax.

By using strongly typed views, we can ensure that the data passed from the controller to the view is of the correct type, which helps prevent errors and improves code maintainability. Additionally, the use of view models allows us to encapsulate the data required by the view in a single object, making it easier to manage and pass .

In conclusion, creating a strongly typed view in ASP.NET MVC with two lists of the same type involves defining a view model class, it with the required data in the controller, and using it as the model for the view. This approach ensures type and improves code organization.

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