Type conversion problem

[henfo]

This should be simple, but either I'm blind, stupid or going mad.

I'm trying to convert a string, containing a numeric value to a double (in
C#), but when I run the code below I get the error message "Input string was
not in a correct format." Why?

string s = "8.0";
double d = Convert.ToDouble(s);

[Peter van der Goes]

"henfo" <he***@discussions.microsoft.com> wrote in message
news:85**********************************@microsof t.com...

This should be simple, but either I'm blind, stupid or going mad.

I'm trying to convert a string, containing a numeric value to a double (in
C#), but when I run the code below I get the error message "Input string
was
not in a correct format." Why?

string s = "8.0";
double d = Convert.ToDouble(s);

The code you posted here works fine for me in the context of a simple
console application in Visual Studio 2003. Please describe the environment
surrounding the failure.

--
Peter [MVP Visual Developer]
Jack of all trades, master of none.

[henfo]

Thanks for your reply.

I too am working in Visual Studio 2003 and tried the code lines in a
console application before posting. I installed the software a couple of
months ago and have been working in it more or less daily since then and
haven't run in to any other strange problems.

\Henrik

"Peter van der Goes" wrote:

The code you posted here works fine for me in the context of a simple
console application in Visual Studio 2003. Please describe the environment
surrounding the failure.

--
Peter [MVP Visual Developer]
Jack of all trades, master of none.

[Jon Skeet [C# MVP]]

henfo <he***@discussions.microsoft.com> wrote:

This should be simple, but either I'm blind, stupid or going mad.

I'm trying to convert a string, containing a numeric value to a double (in
C#), but when I run the code below I get the error message "Input string was
not in a correct format." Why?

string s = "8.0";
double d = Convert.ToDouble(s);

I suspect the problem is the locale you're running in. Try this:

using System;
using System.Threading;
using System.Globalization;

public class Test
{
static void Main()
{
Thread.CurrentThread.CurrentCulture =
CultureInfo.CreateSpecificCulture("en");
Console.WriteLine (Convert.ToDouble("8.0"));
}
}

Now change the "en" to "fr" and run it again, and you'll see the error.

If you want to do the conversion in the invariant culture, do:

Convert.ToDouble(s, CultureInfo.InvariantCulture);

--
Jon Skeet - <sk***@pobox.com>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too

[Pipo]

Have you also tried s = "8,0";
(Region settings??)

"henfo" <he***@discussions.microsoft.com> schreef in bericht
news:85**********************************@microsof t.com...

This should be simple, but either I'm blind, stupid or going mad.

I'm trying to convert a string, containing a numeric value to a double (in
C#), but when I run the code below I get the error message "Input string
was
not in a correct format." Why?

string s = "8.0";
double d = Convert.ToDouble(s);