CSharp/C#, Help: Convert string to decimal (or double)

Help: Convert string to decimal (or double)

Author	Message
Sérgio Almeid #1 / 6	Help: Convert string to decimal (or double) Greeetings I have a string that represents a price and I need to convert it to a decimal or a double. The string is, e.g., string str="3.1415"; When I convert it to double I get 31415 istead of 3.1415 string str="3.1415"; double myDouble=Convert.ToDouble(str); // myDouble has the value 31415. I've also tried the System.Globalization.NumberFormatInfo but I don't seem to get it work :( Any help is needed ;) Thanks -- ------------------------------------------------------------------------- Srgio Almeida MobiComp - Mobile Computing & Wireless Solutions phone: +351 253 305 250 fax: +351 253 305 251 web: http://www.--*.com/ -------------------------------------------------------------------------
Tue, 31 May 2005 20:00:19 GMT

#2 / 6	Help: Convert string to decimal (or double)
Wed, 18 Jun 1902 08:00:00 GMT

Thomas Tomicze #3 / 6	Help: Convert string to decimal (or double) String.Format ("{0:0.00}", 0.12d); Read up on fhe format strings. -- Regards Thomas Tomiczek THONA Consulting Ltd. (Microsoft MVP C#/.NET) Quote: > Greeetings > I have a string that represents a price and I need to convert it to a > decimal or a double. > The string is, e.g., string str="3.1415"; > When I convert it to double I get 31415 istead of 3.1415 > string str="3.1415"; > double myDouble=Convert.ToDouble(str); > // myDouble has the value 31415. > I've also tried the System.Globalization.NumberFormatInfo but I don't > seem to get it work :( > Any help is needed ;) > Thanks > -- > ------------------------------------------------------------------------- > Srgio Almeida > MobiComp - Mobile Computing & Wireless Solutions > phone: +351 253 305 250 fax: +351 253 305 251 > web: http://www.mobicomp.com > -------------------------------------------------------------------------
Tue, 31 May 2005 20:35:39 GMT

Bob Gromme #4 / 6	Help: Convert string to decimal (or double) You might want to look at Double.Parse or Double.TryParse. --Bob Quote: > Greeetings > I have a string that represents a price and I need to convert it to a > decimal or a double. > The string is, e.g., string str="3.1415"; > When I convert it to double I get 31415 istead of 3.1415 > string str="3.1415"; > double myDouble=Convert.ToDouble(str); > // myDouble has the value 31415. > I've also tried the System.Globalization.NumberFormatInfo but I don't > seem to get it work :( > Any help is needed ;) > Thanks > -- > ------------------------------------------------------------------------- > Srgio Almeida > MobiComp - Mobile Computing & Wireless Solutions > phone: +351 253 305 250 fax: +351 253 305 251 > web: http://www.mobicomp.com > -------------------------------------------------------------------------
Tue, 31 May 2005 21:52:47 GMT

Joe Fese #5 / 6	Help: Convert string to decimal (or double) CultureInfo ci = new CultureInfo("en-US"); myDouble = double.Parse(str, NumberStyles.Currency, ci); Does your culture use . as the thousands separator. another words do you print 1000 as 1.000,00? this would explain why the parse returned 31415 because the parse function is culture aware and follows the rule of the current thread culture. Joe Feser Quote: > Greeetings > I have a string that represents a price and I need to convert it to a > decimal or a double. > The string is, e.g., string str="3.1415"; > When I convert it to double I get 31415 istead of 3.1415 > string str="3.1415"; > double myDouble=Convert.ToDouble(str); > // myDouble has the value 31415. > I've also tried the System.Globalization.NumberFormatInfo but I don't > seem to get it work :( > Any help is needed ;) > Thanks > -- > ------------------------------------------------------------------------- > Srgio Almeida > MobiComp - Mobile Computing & Wireless Solutions > phone: +351 253 305 250 fax: +351 253 305 251 > web: http://www.mobicomp.com > -------------------------------------------------------------------------
Tue, 31 May 2005 22:58:48 GMT

Thomas Scheidegger [MVP] NETMaste #6 / 6	Help: Convert string to decimal (or double) .NET used the current Windows regional settings (Control Panel). If the string is always with a dot '.' as decimal separator, try the 'InvariantCulture' : double d = Double.Parse( "3.1415", CultureInfo.InvariantCulture ); or switch thread culture: Thread.CurrentThread.CurrentCulture = CultureInfo.InvariantCulture; dd = Double.Parse( "3.1415" ); http://msdn.microsoft.com/library/en-us/cpguide/html/cpconusinginvari... http://msdn.microsoft.com/library/en-us/cpguide/html/cpconformattingn... http://msdn.microsoft.com/library/en-us/cpguide/html/cpconnumericform... -- Thomas Scheidegger - MVP .NET - 'NETMaster' http://www.cetus-links.org/oo_dotnet.html - http://dnetmaster.net/
Wed, 01 Jun 2005 00:32:58 GMT

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