How to keep any decimal number after aritmetic operations

Israel

Hi,

I have a serious problem. I do make any aritmetic operations and it's work very well. But the problem is on any aritmetic operations for example 135,54 + 18,55 = 154,09

txtNumber1 = 135,54

txtNumber2 = 18,35

txtResNumber = 154,89

Now in practice:

double d1, d2, total;

double.TryParse(txtNumber1.Text, out d1);

double.TryParse(txtNumber2.Text, out d2);

total = d1 + d2;

txtResNumber.Text = total.ToString("N2");

Then the result show every time 154,00 never show the real result as 154,89

I need a good solution to resolv it please.

Thank you,

Israel.

5 Replies

Know the answer? Post it — somebody with the same question will find it here.

Amit Gupta8y ago
Accepted answer
As amount might contain a decimal value and not a integer value, consider the following code in an optimized.
decimal sum = 0;
for (int i = 0; i < dgvTest.Rows.Count; ++i)
{
sum += Convert.ToDecimal(dgvTest.Rows[i].Cells["amount"].Value);

}

lblResult.Text = " " + sum.ToString("#.00");
Moreover, if you are binding your gridview with datatable then it would be much easier to sum the amount.
Good Luck
Israel8y ago
Thank you Amit. It's solved.
Israel8y ago
@Amit

I do try the code its works. But I realize that its work only for textboxes.
Now I do try this to sumarize a datagrid's column and it's still keep the 0.00 even there is others numbers after decimal.
Please can you see these codes:

int sum = 0;
for (int i = 0; i < dgvTest.Rows.Count; ++i)
{
sum += Convert.ToInt32(dgvTest.Rows[i].Cells["amount"].Value);
lblResult.Text = " " + sum.ToString("#.00"); // Even that doest work
}
Amit Gupta8y ago
txtResNumber.Text = total.ToString("#.00");
Israel8y ago
Hi,
Anyone please to find out a great solution...