Binding DropDown List Using Tuple In ASP MVC

In this article, we are going to learn how to bind drop-down list using Tuple in ASP MVC.

Before that, we should know wha Tuple is and what is the usage of a tuple.

Tuple is a generic static class that was added to C# 4.0 and it can hold any amount of elements, and they can be any type we want. So using a tuple, we can return multiple values.One great use of tuple might be returning multiple values from a method. It provides an alternative to "ref" or "out" if you have a method that needs to return multiple new objects as part of its response.

A tuple allows you to combine multiple values of possibly different types into a single object without having to create a custom class. This can be useful if you want to write a method that for example returns three related values but you don't want to create a new class.

To know more about Tuple, please refer Here

Let's see the step by step process to implement Binding drop down using Tuple,

Let's create a simple mvc project in Visual studio. To do -> go to Visual Studio -> select File -> New - > Project -> click-> a new dialog window will open

Select "web" in the left pane and select "ASP.NET Web Application" main window.Then give a name for your project and click ok. Here, I have named my project as "BindingDropDownUsingTuple".

Now, a new dialog window will appear again. In that, select MVC and click ok.

Please find the below images for your references.

Once the project has been created, you can see more folders in the solution file.

Next, let's create a simple class under models folders. Here, I have created a class and named it as "SchoolModels".

Here's the sample code for your reference.

Explanation of View Model

Here, I have created two classes such as "Departments" and "Students". The Departments class is used to bind the Department drop-down list and Students class is used to bind the Students' drop-down list.

Next, let's create a simple controller under Controllers folder. Here, I have created a simple controller and named it as "SchoolController".

Let's create a "Departments" and "Students" list to bind it to the drop-down list. Just add the below code in your index method.