VBFixedArrayAttribute Class
Assembly: Microsoft.VisualBasic (in microsoft.visualbasic.dll)
'Declaration <AttributeUsageAttribute(AttributeTargets.Field, Inherited:=False, AllowMultiple:=False)> _ Public NotInheritable Class VBFixedArrayAttribute Inherits Attribute 'Usage Dim instance As VBFixedArrayAttribute
/** @attribute AttributeUsageAttribute(AttributeTargets.Field, Inherited=false, AllowMultiple=false) */ public final class VBFixedArrayAttribute extends Attribute
AttributeUsageAttribute(AttributeTargets.Field, Inherited=false, AllowMultiple=false) public final class VBFixedArrayAttribute extends Attribute
For more detailed information, see the Visual Basic topic VBFixedArrayAttribute Class.
Visual Basic arrays are of variable length by default. This attribute is useful when using Visual Basic file input and output functions, such as FileGet and FilePut, and API calls that require fixed-length arrays.
Structure Book <VBFixedArray(4)> Public Chapter() As Integer End Structure Sub WriteData() Dim FileNum As Integer = FreeFile() Dim MyBook As Book ReDim MyBook.Chapter(4) ' Add code to populate the array. MyBook.Chapter(0) = 1 MyBook.Chapter(1) = 2 MyBook.Chapter(2) = 3 MyBook.Chapter(3) = 4 MyBook.Chapter(4) = 5 ' Write the array to a file. FileOpen(FileNum, "C:\testfile", OpenMode.Binary, _ OpenAccess.Write, OpenShare.Default) FilePut(FileNum, MyBook) ' Write data. FileClose(FileNum) End Sub
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| The VBFixedArrayAttribute is informational and does not allocate any storage. The purpose of this attribute is to modify how arrays in structures and non-local variables are used by methods or API calls that recognize the VBFixedArrayAttribute. Keep in mind that this attribute does not convert a variable length array to a fixed array and that you must still allocate array storage using Dim or ReDim statements. |
Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.
Reference
VBFixedArrayAttribute MembersMicrosoft.VisualBasic Namespace
MarshalAsAttribute
Other Resources
VBFixedArrayAttribute ClassAttributes in Visual Basic
VBFixedArrayAttribute Class Members
VBFixedStringAttribute Class
ComClassAttribute Class
XML and SOAP Serialization
FileGet Function
FilePut Function
FileOpen Function
Note