September 28, 2022

Fixing Error 200 When Trying To Access An Uninitialized Dynamic Array In A Simple Way

Here are some easy ways to fix error 200 when trying to access an uninitialized dynamic array.

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  • Trying to assign a variant to an uninitialized dynamic array:
    Dim anArray() As IntegerDim varV alternativelyvarV = anArray ' Illegal.

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  • Use ReDim to assign a mode instanceBinds to an array before assigning that array to a variant.

  • You checked passing an uninitialized dynamic mix to an LBound or UBound function:
    Dim anArray() As IntegerLB% = LBound(anArray) 'Invalid.

    Use ReDim to declareto assign bounds to an array before some of LBound or UBound is calledfunction.

  • December 17, 2014 2:57 AM#1

  • December 17, 2014 3:48 AM#2

    Re: How To Check Uninitialized Dynamic Richness Without Using Error Phrase

    New topics constantly appeared on this topic.
    But persistence in not running out of overcrowding?

  • December 17, 2014 6:19 am#3

    Re: How To Test An Uninitialized Dynamic Range Without Using An Error Phrase

  • December 2014, 07:45 17 am#4

    Re: How To Allow Them To Test An Uninitialized Dynamic Array Without Using On Error Sentence

    To sum up the methods, these three threads would tell a person to either live with error handling or dive into an OLE API that works with SAFEARRAY. I’ve always had error traps in the past, I never liked it, but just using OLE seemed like overkill. You intend to live with.

  • December 17, 2014 07:52#5

    Re: How To Directly Test An Uninitialized Dynamic Array Without Using On Error Sentence

    The API should be very simple:

    error 200 attempt to access uninitialized dynamic array

    Code:

    Explicit optionSafeArrayGetDim Lib private statement function "oleaut32" (ByRef saArray() As Any) WhilePrivate Subform_Load() Dim testarray() as a stringDebug.Print SafeArrayGetDim(testarray)End of subtitles

  • December 17, 2014 08:32#6

    Re: How To Test An Uninitialized Dynamic Array Before Using On Error Sentence

    Very useful module here:
    http://web.mit.edu/sde/interface/arc…SSafeArray.bas

    Code:

    error 200 attempt to access uninitialized dynamic array

    'modSDSSafeArray'' Helper functions related to SafeArrays. Arrays Visual Basic“Safe Arrays.''June 12, 2003 - Thomas H. Grayson - Creation'' Copyright 2003 belongs to your Massachusetts Institute of Technology.'Most rights reserved.''Copyright notice:' Many of these codes are also copied and adapted by others' Copyrighted sites that own the code.'' Much of the code is taken from the dedicated vbAdvance website.' A page of a book:http://www.vbadvance.com/arrays.htm'' This page contains the following copyright notice:Copyright 2002'Young dynamic software'       All rights reserved.'' Access the above URL The resource can be obtained from the link in your code' Internet examples containing the same trademark notice' and this informative text:' The following code examples are provided as a courtesy.“Of course, we disclaim any responsibility for their use. Use in"Your risk and danger." We are clearly trying to help you.' to provide them. If you find any problems with thisSamples please write a line so we can make them in many occasions' Corrections. They have been tested under VB6' and is believed to be true.'' Note that the specific definitions of And uboundex ArrayHasDims' are exactly the same as the functions And uboundex ArrayIsEmpty' posted by Peter Yang in the patient section "Re: VB5 code'Error Technologies - Resume on Error / On Error Further' Regards' The microsoft.public.vb.bugs newsgroup, affected June 26, 2002, is visible' to this URL:'http://groups.google.com/groups?hl=e...ftngp13&rnum=2' It looks like he wrote my functions himself,' and this way is possible for vbAdvance.com to correct this post.' The lboundex function is a minor modificationUBoundEx certification.explicit option'Copy memory''This function copies the length of the data bytes from the source' to the goal. Pointer placed in a long different box' can be dereferenced by passing ByVal in the original argument.''The CopyMemory check that was copied was obtained from the txt file WIN32API.File', which is included with Microsoft Visual Studio 6.0, then it's easy' Sold out. The content of this application may be freely reused and' consists of this copyright notice:''Copyright (C) 1994-98 Microsoft CorporationPrivate Declare Sub CopyMemory Lib "kernel32" Alias ​​"RtlMoveMemory" _    (any destination, any source, any ByVal length)'SafeArrayGetDim'' This function returns too large numbers in SafeArray. We' Use this to determine in which cases a dynamic array has been initialized as suggested'this web page:http://www.platformdev.com/newsletter/tips01.htm' Another source is now here:http://www.vbadvance.com/arrays.htm'"However, someone else gets it for information, with some other form' Function declaration statement, found here:http://www.vbxtras.com/vbhowto/VBHowTo90.txt' This version defines this as argument "ByRef SafeArray() As Any".' Looks nice, but VB passes pointer to pointer' to an array does not have to be an array pointer itself (as confirmed by' in the VB4DLL.TXT file shipped with VB4 Found (and in our Google cache)).' So we should use it to dereference the pointer and then remove it from SafeArrayGetDim.' Function.''Microsoft documentation passing VB arrays that would be C functions' Right here:'http://support.microsoft.com/default.aspx?scid=kb;[LN];207931'' The relevant Microsoft documentation can be found here on MSDN:http://msdn.microsoft.com/library/en...chap7_7mwd.asp' The psa instance is a pointer to a SafeArray (SAFEARRAY* in C).'' This exclusive version of the SafeArrayGetDim declaration' corresponds to the version below:http://www.vbadvance.com/arrays.htmSafeArrayGetDim private declaration function library oleaut32.dll_    (ByVal pSA As Long) Bye    '(ByRef SafeArray() as any) While' The documented VarPtrArray function will be in the Microsoft Knowledge Base.Article 199824 titled "HOWTO: Getting an address relative to variables in Visual'

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    Errore 200 Tentativo Di Accedere All Array Dinamico Non Inizializzato
    오류 200 초기화되지 않은 동적 배열에 액세스하려는 시도
    Fel 200 Forsok Att Komma At Oinitierad Dynamisk Array
    Fout 200 Poging Om Toegang Te Krijgen Tot Niet Geinitialiseerde Dynamische Array
    Oshibka 200 Popytka Dostupa K Neinicializirovannomu Dinamicheskomu Massivu
    Erro 200 Tentativa De Acessar Array Dinamico Nao Inicializado
    Fehler 200 Versuch Auf Ein Nicht Initialisiertes Dynamisches Array Zuzugreifen
    Error 200 Intento De Acceder A La Matriz Dinamica No Inicializada
    Erreur 200 Tentative D Acces A Un Tableau Dynamique Non Initialise
    Blad 200 Proba Uzyskania Dostepu Do Niezainicjowanej Tablicy Dynamicznej