get FormatException

  • Thread starter Thread starter Tony Johansson
  • Start date Start date
T

Tony Johansson

Hello!

I have a win form program implementing a calculator.
In this program a have button with the text decimalpoint which all
calculator have.

I have one problem here.
When I do the following I run into FormatException
double d = double.Parse(txtDisplay);
because txtDisplay = "0.2". as you can see we have a decimalpoint here
if I insted use a comma like , it works.

How do I fix to be able to use double.Parse("0.2") with decimalpoint

//Tony
 
Hello!

If I have the following
double d = 0.2;
and do
string s = d.ToString();
I get s = 0,2

Now as you can see ToString replaces
decimalpunkt(.) to comma(,)
but I want to keep decimalpunkt

How can I do to keep my decimalpunkt when using ToString on for example 0.2

//Tony

Peter Duniho said:
[...]
When I do the following I run into FormatException
double d = double.Parse(txtDisplay);
because txtDisplay = "0.2". as you can see we have a decimalpoint here
if I insted use a comma like , it works.

How do I fix to be able to use double.Parse("0.2") with decimalpoint
Click to expand...

If your system is set to use a comma as the decimal separator, I would
think it would make more sense for you to use a comma in your number.

But if you insist on always using a period as the decimal separator, you
can use the Parse() overload that allows you to pass an IFormatProvider,
and pass the CultureInfo.InvariantCulture property value for that
argument.

Pete
Click to expand...
 
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