Visual Studio : Language is c#

NEED FORM AND BACK END

Create a Web Forms project called Assignment3 that that has a Web Form with the following controls:

A Label control with the Text property of

Enter a number less than 15

A TextBox control for user input

A Button control with the Text property of

Calculate Factorial

A Label control with ID of

Result

and

Text property of empty string (

Text

=""

)

When the

form is first loaded, the user enters a an integer less than 15 into the TextBox and

clicks the button as

seen below.

The click event handler method of the button should calculate the factorial of the number entered

into the TextBox and show the result in the Text property of the ID Label as seen below.

Hint:

The factorial of a number

n = n * (n-1) *(n-2) *... * 1

For example, 5! (5 factorial) is equal to: 5 * 4 * 3 * 2 * 1 = 120

You can choose any looping structure of your choosing to calculate the factorial.