Archief - [PROG]VB(.net) Probleem veranderen regional settings

Hoi allemaal ,

Zit me dood te zoeken om dit aan het lopen te krijgen. Is er iemand al die geprobeerd heeft de regional sttings te veranderen via VB / VB.net?

Ik heb de code gevonden , maar dit geeft een probleem met : lpLCDataVar
Variable 'lpLCDataVar'is passed by reference before it has been assigned a value. A null reference exception could result at runtime.

Ik weet wat de error betekent , ik weet niet welke waarde lpLCDataVar moet krijgen , noch weet ik of dit een systemvar is die van naam veranderd is in VB.

Volledige code :


'These declarations are designed
'for use in a .bas module
'since the constants are public


Declare Function GetLocaleInfo Lib "kernel32" Alias "GetLocaleInfoA" (ByVal Locale As Long, ByVal LCType As Long, ByVal lpLCData As String, ByVal cchData As Long) As Long
Declare Function SetLocaleInfo Lib "kernel32" Alias "SetLocaleInfoA" (ByVal Locale As Long, ByVal LCType As Long, ByVal lpLCData As String) As Boolean
Declare Function GetUserDefaultLCID% Lib "kernel32" ()

Public Const LOCALE_ICENTURY = &H24
Public Const LOCALE_ICOUNTRY = &H5
Public Const LOCALE_ICURRDIGITS = &H19
Public Const LOCALE_ICURRENCY = &H1B
Public Const LOCALE_IDATE = &H21
Public Const LOCALE_IDAYLZERO = &H26
Public Const LOCALE_IDEFAULTCODEPAGE = &HB
Public Const LOCALE_IDEFAULTCOUNTRY = &HA
Public Const LOCALE_IDEFAULTLANGUAGE = &H9
Public Const LOCALE_IDIGITS = &H11
Public Const LOCALE_IINTLCURRDIGITS = &H1A
Public Const LOCALE_ILANGUAGE = &H1
Public Const LOCALE_ILDATE = &H22
Public Const LOCALE_ILZERO = &H12
Public Const LOCALE_IMEASURE = &HD
Public Const LOCALE_IMONLZERO = &H27
Public Const LOCALE_INEGCURR = &H1C
Public Const LOCALE_INEGSEPBYSPACE = &H57
Public Const LOCALE_INEGSIGNPOSN = &H53
Public Const LOCALE_INEGSYMPRECEDES = &H56
Public Const LOCALE_IPOSSEPBYSPACE = &H55
Public Const LOCALE_IPOSSIGNPOSN = &H52
Public Const LOCALE_IPOSSYMPRECEDES = &H54
Public Const LOCALE_ITIME = &H23
Public Const LOCALE_ITLZERO = &H25
Public Const LOCALE_NOUSEROVERRIDE = &H80000000
Public Const LOCALE_S1159 = &H28
Public Const LOCALE_S2359 = &H29
Public Const LOCALE_SABBREVCTRYNAME = &H7
Public Const LOCALE_SABBREVDAYNAME1 = &H31
Public Const LOCALE_SABBREVDAYNAME2 = &H32
Public Const LOCALE_SABBREVDAYNAME3 = &H33
Public Const LOCALE_SABBREVDAYNAME4 = &H34
Public Const LOCALE_SABBREVDAYNAME5 = &H35
Public Const LOCALE_SABBREVDAYNAME6 = &H36
Public Const LOCALE_SABBREVDAYNAME7 = &H37
Public Const LOCALE_SABBREVLANGNAME = &H3
Public Const LOCALE_SABBREVMONTHNAME1 = &H44
Public Const LOCALE_SCOUNTRY = &H6
Public Const LOCALE_SCURRENCY = &H14
Public Const LOCALE_SDATE = &H1D
Public Const LOCALE_SDAYNAME1 = &H2A
Public Const LOCALE_SDAYNAME2 = &H2B
Public Const LOCALE_SDAYNAME3 = &H2C
Public Const LOCALE_SDAYNAME4 = &H2D
Public Const LOCALE_SDAYNAME5 = &H2E
Public Const LOCALE_SDAYNAME6 = &H2F
Public Const LOCALE_SDAYNAME7 = &H30
Public Const LOCALE_SDECIMAL = &HE
Public Const LOCALE_SENGCOUNTRY = &H1002
Public Const LOCALE_SENGLANGUAGE = &H1001
Public Const LOCALE_SGROUPING = &H10
Public Const LOCALE_SINTLSYMBOL = &H15
Public Const LOCALE_SLANGUAGE = &H2
Public Const LOCALE_SLIST = &HC
Public Const LOCALE_SLONGDATE = &H20
Public Const LOCALE_SMONDECIMALSEP = &H16
Public Const LOCALE_SMONGROUPING = &H18
Public Const LOCALE_SMONTHNAME1 = &H38
Public Const LOCALE_SMONTHNAME10 = &H41
Public Const LOCALE_SMONTHNAME11 = &H42
Public Const LOCALE_SMONTHNAME12 = &H43
Public Const LOCALE_SMONTHNAME2 = &H39
Public Const LOCALE_SMONTHNAME3 = &H3A
Public Const LOCALE_SMONTHNAME4 = &H3B
Public Const LOCALE_SMONTHNAME5 = &H3C
Public Const LOCALE_SMONTHNAME6 = &H3D
Public Const LOCALE_SMONTHNAME7 = &H3E
Public Const LOCALE_SMONTHNAME8 = &H3F
Public Const LOCALE_SMONTHNAME9 = &H40
Public Const LOCALE_SMONTHOUSANDSEP = &H17
Public Const LOCALE_SNATIVECTRYNAME = &H8
Public Const LOCALE_SNATIVEDIGITS = &H13
Public Const LOCALE_SNATIVELANGNAME = &H4
Public Const LOCALE_SNEGATIVESIGN = &H51
Public Const LOCALE_SPOSITIVESIGN = &H50
Public Const LOCALE_SSHORTDATE = &H1F
Public Const LOCALE_STHOUSAND = &HF
Public Const LOCALE_STIME = &H1E
Public Const LOCALE_STIMEFORMAT = &H1003

Public Sub Get_locale() ' Retrieve the regional setting

Dim Symbol As String
Dim iRet1 As Long
Dim iRet2 As Long
Dim lpLCDataVar As String
Dim Pos As Integer
Dim Locale As Long

Locale = GetUserDefaultLCID()

'LOCALE_SDATE is the constant for the date separator
'as stated in declarations
'for any other locale setting just change the constant

'Function can also be re-written to take the
'locale symbol being requested as a parameter

iRet1 = GetLocaleInfo(Locale, LOCALE_SDATE, lpLCDataVar, 0)
Symbol = Microsoft.VisualBasic.Str(iRet1)

iRet2 = GetLocaleInfo(Locale, LOCALE_SDATE, Symbol, iRet1)
Pos = InStr(Symbol, Chr(0))
If Pos > 0 Then
Symbol = Microsoft.VisualBasic.Left(Symbol, Pos - 1)
MsgBox("Regional Setting = " + Symbol)
End If

End Sub

Public Sub Set_locale() 'Change the regional setting

Dim Symbol As String
Dim iRet As Long
Dim Locale As Long

'LOCALE_SDATE is the constant for the date separator
'as stated in declarations
'for any other locale setting just change the constant

'Function can also be re-written to take the
'locale information being set as a parameter

Locale = GetUserDefaultLCID() 'Get user Locale ID
Symbol = "-" 'New character for the locale
iRet = SetLocaleInfo(Locale, LOCALE_SDATE, Symbol)

End Sub

Ik hoop hier ergens snel een atwoord te vinden. Tenzij er iemand een makkelijker oplossing heeft om in VB excel files te openen , in te lezen en verwerken. Het probleem hier si een bugje waardoor je alleen excel files kan openen met regional settings op English , terwijl het moet werken voor alle regional settings.

Als het enkel de localization van je applicatie is die moet wijzigen (VB.net):

Imports System.Globalization
Imports System.Threading

Thread.CurrentThread.CurrentCulture = CultureInfo.CreateSpecificCulture("nl-BE")
Thread.CurrentThread.CurrentUICulture = New CultureInfo("nl-BE")