Basic Calculator in C#

Here is a procedure to create a basic calculator. In this section I will build a basic calculator that can perform the following operations:

• Addition
• Subtraction
• Multiplication
• Division
• Clear

Steps:

Open Microsoft Visual Studio 2010 then click on "File" -> "New" -> "Website".



Then select "ASP.NET Empty Website".



Then "Add New Item":



Then select "Web Form":



And click "Add". Now it will open the page as in the following:



Here we will write our code:.

Process to create calculator

First we need to create a TextBox and 16 Buttons as in the following:

• 10 Buttons for numbers (0-9)
• 5 Buttons to perform operation (addition (+), Subtraction (-) , Multiplication (*), Division (/) ,Clear (CLR) )
• 1 Buttons for evaluation (=)

Here is the code for the "Default.aspx" page:

Here is the code for the "Default.aspx.cs" page (the code for all the buttons) :