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VBFixedStringAttribute Class

Indicates that a string should be treated as if it were fixed length.

<System.AttributeUsage(System.AttributeTargets.Field, _
   Inherited := False, AllowMultiple := False)> _
Public NotInheritable Class VBFixedStringAttribute
   Inherits System.Attribute

Remarks

Visual Basic .NET strings are of variable length by default. This attribute is useful when using Visual Basic .NET file input and output functions, such as FileGet and FilePut that require fixed length strings.

Example

Structure Person
   Public ID As Integer
   Public MonthlySalary As Decimal
   Public LastReviewDate As Long
   <VBFixedString(15)> Public FirstName As String
   <VBFixedString(15)> Public LastName As String
   <VBFixedString(15)> Public Title As String
   <VBFixedString(150)> Public ReviewComments As String
End Structure
Note   The VBFixedStringAttribute is informational and cannot be used to convert a variable length string to a fixed string. The purpose of this attribute is to modify how strings in structures and non-local variables are used by methods or API calls that recognize the VBFixedStringAttribute. Keep in mind that this attribute does not change the actual length of the string itself.

Smart Device Developer Notes

This class is not supported.

Requirements

Namespace: Microsoft.VisualBasic

Assembly: Microsoft Visual Basic .NET Runtime (in Microsoft.VisualBasic.dll)

See Also

Attributes | VBFixedStringAttribute Class Members | VBFixedArrayAttribute Class | StringBuilder Class | MarshalAsAttribute Class | ComClassAttribute Class | Attributes Used in Visual Basic .NET | Declaring Variables for Random File Access | FileGet Function | FilePut Function | FileOpen Function

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