.NET Security and Cryptography

Creating an ASP.NET Calculator Web Service

Create a Web service with C# as project type, and enter http://localhost/Security/AppendixE/Calculator as the location of your project. Write a Web method named Calculator that accepts three arguments: first operand operation (+, - , *, /, Pow), second operand, and gives the result as double, as shown in the following code.

[WebMethod(Description="Simple Calculator Web Service.")]
public double Calculator(System.Double a,string c, System.Double  b)
{
switch (c)
  {
  case "+":
    return a + b;
    case "-":
    return a - b;
    case "/":
    if (b == 0)
    {
    return 0;
    }
    return a /b;
    case "*":
    return a * b;
    case "Pow":
    return Math.Pow(a, b);
    default:
    return 0;
  }
 }

Test the Web service in the test form and check the results. ...