SetAttr Function

發行項
11/18/2006

Sets attribute information for a file.

The My feature gives you greater productivity and performance in file I/O operations than SetAttr. For more information, see My.Computer.FileSystem Object.

Public Sub SetAttr( _
    ByVal PathName As String, _
    ByVal Attributes As FileAttribute _
)

Parameters

PathName
Required. String expression that specifies a file name. PathName can include directory or folder, and drive.

Attributes
Required. Constant or numeric expression, whose sum specifies file attributes.

Settings

The Attributes argument enumeration values are:

Value	Constant	Description
Normal	vbNormal	Normal (default).
ReadOnly	vbReadOnly	Read-only.
Hidden	vbHidden	Hidden.
System	vbSystem	System file.
Volume	vbVolume	Volume label
Directory	vbDirectory	Directory or folder.
Archive	vbArchive	File has changed since last backup.
Alias	vbAlias	File has a different name.

Note

These enumerations are specified by the Visual Basic language. The names can be used anywhere in your code in place of the actual values.

Exceptions

Exception type	Error number	Condition
ArgumentException	52	PathName invalid or does not exist.
ArgumentException	5	Attribute type is invalid.

See the "Error number" column if you are upgrading Visual Basic 6.0 applications that use unstructured error handling. (You can compare the error number against the Number Property (Err Object).) However, when possible, you should consider replacing such error control with Structured Exception Handling Overview for Visual Basic.

Remarks

A run-time error occurs if you try to set the attributes of an open file.

Example

This example uses the SetAttr function to set attributes for a file.

' Set hidden attribute.
SetAttr("TESTFILE", vbHidden)   
' Set hidden and read-only attributes.
SetAttr("TESTFILE", vbHidden Or vbReadOnly)

Smart Device Developer Notes

This function is not supported.

Requirements

Namespace: Microsoft.VisualBasic

Module: FileSystem

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

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