private void button3_Click(object sender, EventArgs e)
{
string messageBoxText = "";
string mathInputOperator = "";
int subStringBegin = 0;
int subStringLength = 3;
int openParenthesisCheck = 3;
int closeParenthesisCheck = -1;
int minimumLengthPosition = 7; //minimum length for argument is 8
int inputLength = -1;
string inputRawText = mathInput.Text.Trim();
int positionOfComma = -1;
int lengthOfX = -1;
int lengthOfY = -1;
string xAsString ="";
string yAsString = "";
int x = -1;
int y = -1;
SumoForm.ServiceReference1.IService1 Service1Client = new Service1Client();
inputLength = inputRawText.Length;
if (inputLength < minimumLengthPosition || inputRawText == "" || inputRawText == null)
{
messageBoxText = "Please enter a Valid argument \r\n eg:'add(0,1)' \r\n failed because of length";
}
else
{
mathInputOperator = inputRawText.Substring(subStringBegin, subStringLength).ToLower();
if (mathInputOperator != "add" &&
mathInputOperator != "mul" &&
mathInputOperator != "div" &&
mathInputOperator != "sub" &&
mathInputOperator != "pow" &&
mathInputOperator != "srt" &&
mathInputOperator != "bin" &&
mathInputOperator != "hex")
{
messageBoxText = "Please Enter a valid 3 charachter operator. \r\n (ie: add, mul, div, sub, pow, srt, bin, hex)\r\n ** Not case Sensitive \r\n first three chars must represent operator";
}
else
if (inputRawText[openParenthesisCheck] != '(')
{
messageBoxText = "Please enter a Valid argument \r\n eg:'add(0,1)'\r\nYour ( must be the 4th character";
}
else
{
closeParenthesisCheck = inputRawText.Length - 1;
if (inputRawText[closeParenthesisCheck] != ')')
{
messageBoxText = "Please enter a Valid argument \r\n eg:'add(0,1)'\r\nYour ) must be the last character";
}
else
{
positionOfComma = inputRawText.IndexOf(',');
if (positionOfComma < openParenthesisCheck + 2 || positionOfComma > closeParenthesisCheck - 2)
{
messageBoxText = "Please enter a Valid argument \r\n eg:'add(0,1)'\r\nYour , must be between the two operands";
}
else
{
//later check for a '-' char in positon after comma or after open parenthesis then have neg flags and convert to int32 then multiply by -1
lengthOfX = (positionOfComma - 1) - openParenthesisCheck;
lengthOfY = closeParenthesisCheck - (positionOfComma + 1);
xAsString = inputRawText.Substring(openParenthesisCheck+1,lengthOfX);
yAsString = inputRawText.Substring(positionOfComma + 1, lengthOfY);
try
{
x = Convert.ToInt32(xAsString);
y = Convert.ToInt32(yAsString);
}
catch (FormatException Exception)
{
messageBoxText = "Please enter a Valid argument \r\n eg:'add(0,1)'\r\nYour operands did not seem to be integers\r\n\r\n\r\n" + Exception.ToString();
}
catch (OverflowException Exception)
{
messageBoxText = "Please enter a Valid argument \r\n eg:'add(2147483647,2147483647) is the max\r\n\r\n\r\n" + Exception.ToString();
}
finally
{
if (messageBoxText == "")
{
messageBoxText = "success!";
}
}
}
messageBoxText = Service1Client.mathOperations(mathInputOperator, x ,y);
}
}
}
MessageBox.Show(messageBoxText);
}