How to keep any decimal number after aritmetic operations

Question

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.