Writing the code program code

It is left to write the action (Action), which sums the numbers when clicking on the button [Calculate]. We open the file Controllers\HomeController.cs and we add the following code into the body of HomeController class:

This code implements the action “calculate”. It takes two parameters num1 and num2 and records them in the objects ViewBag, after which it calculates and records their sum. The recorded in ViewBag values after that are used from the view, to be shown in the three text fields inside the form for summing number in the web page of the application.

Here is how the file HomeController.cs should look after the change:

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