converting from string to float problem

[ool]

Hello,

How I can convert value from string to double.

When I do this in that way:

String sParam="150.00";
double dbValue= Convert.ToDouble(szParam);

I get System.FormatEcxeption

Thomas

[Nicole Calinoiu]

Thomas,

You might find the either Double.Parse or Double.TryParse to be a bit more
useful than Convert.ToDouble.

HTH,
Nicole
"ool" <so***@no.spam> wrote in message
news:bk**********@atlantis.news.tpi.pl...

Hello,

How I can convert value from string to double.

When I do this in that way:

String sParam="150.00";
double dbValue= Convert.ToDouble(szParam);

I get System.FormatEcxeption

Thomas

[Daniel Pratt]

Hi Thomas,

"ool" <so***@no.spam> wrote in message
news:bk**********@atlantis.news.tpi.pl...

Hello,

How I can convert value from string to double.

When I do this in that way:

String sParam="150.00";
double dbValue= Convert.ToDouble(szParam);

I get System.FormatEcxeption

A hunch.

I note that your post seems to originate from Poland, yes? According to
Windows, the Polish culture uses a comma to seperate whole part from decimal
part. Assuming the number you are trying to parse follows the English (U.S.)
format, you could create a CultureInfo object and pass it as the second
(IFormatProvider) parameter to the Convert.ToDouble method.

System.Globalization.CultureInfo enUSCulture =
new System.Globalization.CultureInfo("en-US");

String sParam = "150.00";
double dbValue = Convert.ToDouble(szParam, enUSCulture);

Regards,
Dan

[Jon Skeet]

ool <so***@no.spam> wrote:

How I can convert value from string to double.

When I do this in that way:

String sParam="150.00";
double dbValue= Convert.ToDouble(szParam);
I presume your actual code has the same variable name in both places.
I get System.FormatEcxeption

My guess is that you're in a culture where the decimal point is a comma
rather than a dot. Try

double dbValue = Convert.ToDouble (szParam,
CultureInfo.InvariantCulture);

(with a using System.Globalization; statement at the top of your code).

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