Pass collection of object from controller to view asp net mvc

Introduction

When with ASP.NET MVC, it is common to pass collections of objects from the to the view. This allows the view to display and manipulate the data in the collection. In this article, we will explore different ways to pass collections of objects from the controller to the view in ASP.NET MVC, along with .

Passing a Collection of Objects as a

One way to pass a collection of objects from the controller to the view is by using the model. The model represents the data that is passed to the view for rendering. To pass a collection of objects as a model, you can create a class that represents the collection and it with the desired data in the controller.

In the above example, we create a class called MyViewModel that has a property MyObjects of type . In the MyAction method, we populate the MyObjects property with the collection of objects and pass the viewModel object to the view.

the Collection in the View

Once the collection of objects is passed to the view, we can access it using the model. In the view, we can over the collection and display the data as needed. Here is an example of how to access the collection in the view:


@model MyViewModel

@ (var myObject in Model.MyObjects)
{
    

@myObject.Name

}

In the above example, we use the @model directive to specify the type of the model. Then, we use a foreach loop to iterate over the MyObjects property of the model and display the Name property of each object in a paragraph .

Passing a Collection of Objects as ViewData

Another way to pass a collection of objects from the controller to the view is by using the ViewData dictionary. The ViewData dictionary allows you to pass data between the controller and the view. To pass a collection of objects as ViewData, you can add the collection to the ViewData dictionary in the controller.

In the above example, we add the myObjects collection to the ViewData dictionary with the key “MyObjects”. This makes the collection in the view.

Accessing the Collection in the View

To access the collection of objects in the view when using ViewData, we need to cast it to the appropriate type. Here is an example of how to access the collection in the view:

In the above example, we use the as keyword to cast the ViewData["MyObjects"] to a . Then, we can iterate over the myObjects collection and display the Name property of each object in a paragraph element.

Conclusion

In this article, we explored different ways to pass collections of objects from the controller to the view in ASP.NET MVC. We learned how to pass a collection as a model and access it in the view using the model, as well as how to pass a collection as ViewData and access it in the view. By understanding these techniques, you can effectively pass and display collections of objects in your ASP.NET MVC applications.

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