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ghj Grandhe
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Input string was not in a correct format

Getting Input String Was not in a correct Format
.Actually I had written a method in webservice as method name as caculator
 [WebMethod]
   public int caculator(int firstNumber,int secondNumber,string operation)
    {
        int result = 0;
        switch(operation)
        {
            case "+": result = firstNumber + secondNumber;
                break;
            case "-": result = firstNumber - secondNumber;
                break;
            case "*": result = firstNumber * secondNumber;
                break;
            case "/":result = firstNumber / secondNumber;
                break;
        }
        return result;
    }
and Iam consuming this in webapplication where I have written as
private void BindData()
        {
            string operation = txtOperation.Text;
            WebService1 objWebService = new WebService1();
            int result=objWebService.caculator(int.Parse(txtFirstNumber.Text), int.Parse(txtSecondNumber.Text), operation);
            if (result != 0)
                Response.Write(result);
        }
 in this iam getting error at this line
int result=objWebService.caculator(int.Parse(txtFirstNumber.Text), int.Parse(txtSecondNumber.Text), operation);

i doesn't understand why iam getting error here. Even though i converted it into string
could you please suggest as soon as possible
ASP.NETC#

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Last Comment
ghj Grandhe

8/22/2022 - Mon
SOLUTION
AndyAinscow

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SOLUTION
Fernando Soto

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ghj Grandhe

ASKER
thanks for providing comments. i used tryparse.
Fernando Soto

So did you find the issue?
ghj Grandhe

ASKER
yes, i found out that the issue is causing in int.parse and i rechanged to int.tryparse.
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Fernando Soto

That is great. Please close this question by selecting those solutions that helped.

Thanks
Fernando
AndyAinscow

I'd suggest you split over the first three comments.
ghj Grandhe

ASKER
Thanks
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