how to solve attempted to divide by zero in c#?

Question

I am getting this bug, I wrote code like this below

code:

decimal Amnt;
decimal.TryParse(txtAmnt.Text, out Amnt);
int tnure=1;
int.TryParse(txtTnre.Text, out tnure);
txtDdctAmnt.Text = (Amnt /tnure).ToString("0.00");

when in textbox value 0 I am getting this error.If it is possible give answer to me.

What do you mean "solve"? Either validate value before division, or handle exception, if the validation isn't an option here. I hope, you don't looking for a way how to allow to divide by zero. — Dennis, Mar 13 '13 at 05:28
check 'tnure!=0' value before the division operation take place. — asitis, Mar 13 '13 at 05:40

score 9 · Accepted Answer · answered Mar 13 '13 at 05:27

9

How about simply using an if to check before dividing by zero?

if(tnure != 0)
    txtDdctAmnt.Text = (Amnt / tnure).ToString("0.00");
else
    txtDdctAmnt.Text = "Invalid value";

answered Mar 13 '13 at 05:27

Joachim Isaksson

176,943
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score 3 · Answer 2 · answered Mar 13 '13 at 05:27

3

check if tnure is not 0,you are getting Divide by Zero Exception,more help at http://msdn.microsoft.com/en-us/library/ms173160.aspx

decimal Amnt;
        decimal.TryParse(txtAmnt.Text, out Amnt);
        int tnure=1;
        int.TryParse(txtTnre.Text, out tnure);
if(tnure!=0)
{
        txtDdctAmnt.Text = (Amnt /tnure).ToString("0.00");
}
else
{
/*handle condition*/
}

answered Mar 13 '13 at 05:27

Cris

12,799
5
35
50

THANK U I TRIED IT IS GETTING CORRECT ANSWER – user1899761 Mar 13 '13 at 05:49

score 1 · Answer 3 · answered Mar 13 '13 at 05:29

1

When tnre is 0, Amnt /tnure is a division by 0. You need to check whether tnre is 0 before dividing, and don't divide by tnre if it is equal to 0.

answered Mar 13 '13 at 05:29

Max Nanasy

5,871
7
33
38

score 0 · Answer 4 · answered Mar 13 '13 at 05:29

0

Put your code in try/Catch Statement like this

    try
    {
    decimal Amnt;
    decimal.TryParse(txtAmnt.Text, out Amnt);
    int tnure=1;
    int.TryParse(txtTnre.Text, out tnure);
    txtDdctAmnt.Text = (Amnt /tnure).ToString("0.00");
    }
    catch(Exception ex)
    {
        // handle exception here
        Response.Write("Could not divide any number by 0");
    }

answered Mar 13 '13 at 05:29

Rajeev Kumar

4,901
8
48
83

1

Why do you wait to the exception? can't you check tnure? and never catch the global `Exception` exception. – gdoron Mar 13 '13 at 05:33

how to solve attempted to divide by zero in c#?

4 Answers4