This print for content only-size & color not accurate 7" X 9-1/4" / casebound / malloy

// For simplicity, we are not bothering to verify that

// the input values are indeed numerical.

Console.Write("Enter first number: ");

FirstNumber = int.Parse(Console.ReadLine());

Console.Write("Enter second number: ");

SecondNumber = int.Parse(Console.ReadLine());

}

}

Add a second Code activity named GetMathOpInput mapped to a method named

GetOpInput() in order to ask the user how he or she wishes to process the numerical data. To do so,

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8849CH26.qxd  10/10/07  11:46 AM  Page 936

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we will assume the user will specify the letters A, S, M, or D, and based on this character value, set

the MathOperation property to the correct enumeration value. Here is one possible implementation:

private void GetOpInput(object sender, EventArgs e)

{

Console.WriteLine("Do you wish to A[dd], S[ubtract],");

Console.Write("Do you wish to M[ultiply] or D[ivide]: ");

string option = Console.ReadLine();

switch (option.ToUpper())

{

case "A":

Operation = MathOperation.Add;

break;

case "S":

Operation = MathOperation.Subtract;

break;

case "M":

Operation = MathOperation.Multiply;

break;

case "D":

Operation = MathOperation.Divide;

break;

default:

numericalOp = MathOperation.Add;

break;

}

}

At this point we have the necessary data. Now let’s check out how to pass it to our XML web

service for processing.