Error Delphi Is Not A Valid Floating Point Value
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0.5 Is Not A Valid Floating Point Value
the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation ' ' is not a valid floating point value quickbooks Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it is not a valid floating point value error only takes a minute: Sign up '' is not valid floating point value delphi up vote 0 down vote favorite error message thrown ` qConsulta2 := TQuery.Create(Application); qConsulta2.DatabaseName := 'BaseDato'; qConsulta2.SQL.Text := 'select VALOR from PARAMETRO where codigoPARAMETRO = ''IVA'' '; qConsulta2.open; qCompraDetalle.FieldByName('PORCENTAJE_IVA').AsFloat:= qConsulta2.fieldbyname('valor').asfloat; qConsulta2.close; qConsulta2.free ` This threw me into execution this error, and do not know why, beforehand
9.0 Is Not A Valid Floating Point Value Quickbooks
thank you very much for your time and help. Excuse me for my bad English. delphi floating-point share|improve this question edited Nov 28 '13 at 17:36 Charles 40.1k1069107 asked Nov 22 '13 at 14:12 Jeisson Niño 615 2 Still using BDE in 2013 ? Wow... –Arioch 'The Nov 22 '13 at 15:13 add a comment| 3 Answers 3 active oldest votes up vote 2 down vote accepted Your problem is with the qConsulta2.fieldbyname('valor').asfloat From my testing your error will occur if the VALOR column is text or varchar in the database table and it contains a Null or zero length string. My test involved creating a table with VALOR_TEXT and VALOR_FLOAT columns in an MSAccess database. VALOR_TEXT is defined as text and VALOR_FLOAT is defined a double. I wrote code for 4 test cases, 2 illustrate the error (Case1 and Case2) and 2 that provide solutions (Case 3 and Case4). The code is provided below. procedure TForm1.Case1; var f : double; begin db.ExecSQL('delete from PARAMETRO'); db.ExecSQL('insert into PARAMETRO (codigoPARAMETRO) values(''IVT'')'); // VALOR_FLOAT and VALOR_TEXT are null qConsu
Show Posts Tag Search Advanced Search Go to Page... Thread Tools Display Modes #1 is not a valid floating point value toad 06-27-2006, 08:17 PM coersum Junior Member Join Date: Dec strtofloat delphi 2004 Posts: 27 not a valid floating point value Hi, I have been trying to fix
Delphi String To Double
a problem I am having with my program. When I use it on my pc, I have no problem (even if I change the regional variables). I http://stackoverflow.com/questions/20146942/is-not-valid-floating-point-value-delphi have added a big set of variables to the form create to make sure it uses the variables I have here: CurrencyFormat := 0; NegCurrFormat := 0; ThousandSeparator := ','; CurrencyDecimals := 2; DecimalSeparator := '.'; DateSeparator := '/'; ShortDateFormat := 'M/d/yyyy'; LongDateFormat := 'dddd, MMMM dd, yyyy'; TimeSeparator := ':'; TimeAMString := http://www.delphipages.com/forum/showthread.php?t=166851 'AM'; TimeAMString := 'PM'; ShortTimeFormat := 'h:mm AMPM'; LongTimeFormat := 'h:mm:ss AMPM'; But somehow on some of my client's computer, they still get the error "'0.16664352' is not a valid floating point value". This error most likely happen when I try to strtofloat() the value, but I would think the DecimalSeparator variable set to '.' (dot) would fix that. Am I missing something ? Ex of one of my lines: RList.Cells[0,1] := formatdatetime('mm/dd/yy hh:nn', now+StrToFloat(TimeDiff.text))+'GMT'; // TimeDiff.text contains the variable 0.16664352 for this example That variable is used to detect and log the difference between one datetime to another and is calulated by: DTime1 := strtodatetime(Formatdatetime('mm/dd/yyyy HH:mm:ss', strtodatetime('06/22/06+' '+'20:30:42'))); DTime2 := strtodatetime(Formatdatetime('mm/dd/yyyy HH:mm:ss', now)); Result := FloatToStr(DTime1 - DTime2); //this is saved in TimeDiff.text Thank you for any help. coersum View Public Profile Send a private message to coersum Visit coersum's homepage! Find all posts by coersum #2 06-27-2006, 11:55 PM questo Member Join
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