How to cast string to double

[Ernesto Herrera]

Hi,
As you can see, I am new to C#. I have a text box asp control in a form, and
the information I get from it is a number.

how do I convert from string to double or any other number? In C we use to
have atoi, and VB we had the tons of convertion functions.

Thanks
Ernesto

[Jochen Kalmbach]

Ernesto Herrera wrote:

> how do I convert from string to double or any other number? In C we
> use to have atoi, and VB we had the tons of convertion functions.

string str = "12.2";
double dbl;

dbl = double.Parse(str);

or

Convert.ToDouble(str);

--
Greetings
Jochen

[Joe Feser]

You will need to trap for a possible conversion error but here it is

string textbox = "5";

double testdbl = System.Double.Parse(textbox);

--
Joe Feser
Fesersoft
http://www.fesersoft.com/
.Net, XML, XSLT, SQL
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"Ernesto Herrera" <ern...@bellsouth.net> wrote in message
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[Jens Gruschel]

> how do I convert from string to double or any other number? In C we use to
> have atoi, and VB we had the tons of convertion functions.

.NET provides tons of conversion function, too. You could use
Convert.ToDouble or double.Parse / double.TryParse

Jens

[Ernesto Herrera]

Thank you guys.
Ernesto

"Jens Gruschel" <grus...@esteam.de> wrote in message
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