how to convert this

[Praveen]

got a string a="2.3944864845 405107E+18"

how to convert this into a valid number. which method to use..
I was using Convert.ToInt64 (a); which is going to exception.


thanks
Praveen

[Peter Morris]

Re: how to convert this

try decimal.Parse() instead

[Bjorn Brox]

Re: how to convert this

Praveen skrev:

got a string a="2.3944864845 405107E+18"
>
how to convert this into a valid number. which method to use..
I was using Convert.ToInt64 (a); which is going to exception.
>
>

First: The string you have is not representing an integer, so you have
to go through a string to double step first.

Secondly: Converting a string to a double is language dependent, - in
German, Norwegian and French as an example the expected decimal
separator is a comma ',', instead of a period (.).

If you know that the string always is using '.' as decimal point you
should parse it by using CultureInfo.Inv ariantCulture to avoid a crash
if running on a German OS.

Int64 value = Convert.ToInt64 (Convert.ToDoub le(a,
System.Globaliz ation.CultureIn fo.InvariantCul ture));

--
Bjorn Brox

[Peter Morris]

Re: how to convert this

>got a string a="2.3944864845 405107E+18"

Secondly: Converting a string to a double is language dependent, - in
German, Norwegian and French as an example the expected decimal
separator is a comma ',', instead of a period (.).

I'm curious as to what will happen if you try converting this on a German
locale as it is a number in standard form and and wonder if it is an
exception or not. Could you try?

[=?ISO-8859-1?Q?Arne_Vajh=F8j?=]

Re: how to convert this

Peter Morris wrote:

>>got a string a="2.3944864845 405107E+18"

>Secondly: Converting a string to a double is language dependent, - in
>German, Norwegian and French as an example the expected decimal
>separator is a comma ',', instead of a period (.).

>
I'm curious as to what will happen if you try converting this on a German
locale as it is a number in standard form and and wonder if it is an
exception or not. Could you try?

You can try it yourself just specifying a german culture as second
argument.

Arne

[Bjorn Brox]

Re: how to convert this

Peter Morris skrev:

>>got a string a="2.3944864845 405107E+18"

>

>Secondly: Converting a string to a double is language dependent, - in
>German, Norwegian and French as an example the expected decimal
>separator is a comma ',', instead of a period (.).

>
I'm curious as to what will happen if you try converting this on a German
locale as it is a number in standard form and and wonder if it is an
exception or not. Could you try?
>
>

Convert.ToDoubl e(a) throw a System.FormatEx ception

--
Bjorn Brox