Export (0) Print
Expand All

SearchOption Enumeration

Specifies whether to search the current directory, or the current directory and all subdirectories.

Namespace:  System.IO
Assembly:  mscorlib (in mscorlib.dll)

'Declaration
<SerializableAttribute> _
<ComVisibleAttribute(True)> _
Public Enumeration SearchOption

Member nameDescription
AllDirectoriesIncludes the current directory and all its subdirectories in a search operation. This option includes reparse points such as mounted drives and symbolic links in the search.
TopDirectoryOnlyIncludes only the current directory in a search operation.

If you choose AllDirectories in your search and the directory structure contains a link that creates a loop, the search operation enters an infinite loop.

The following example lists all the directories and files that begin with the letter "c", as in "c:\". In this example, the SearchOption is used to specify that only the top-level directory should be searched.

Imports System
Imports System.IO

Class App
    Public Shared Sub Main()
        ' Specify the directory you want to manipulate. 
        Dim path As String = "c:\\" 
        Dim searchPattern As String = "c*" 

        Dim di As DirectoryInfo = New DirectoryInfo(path)
        Dim directories() As DirectoryInfo = _
            di.GetDirectories(searchPattern, SearchOption.TopDirectoryOnly)

        Dim files() As FileInfo = _
            di.GetFiles(searchPattern, SearchOption.TopDirectoryOnly)

        Console.WriteLine( _
            "Directories that begin with the letter 'c' in {0}", path)
        Dim dir As DirectoryInfo
        For Each dir In directories
            Console.WriteLine( _
                "{0,-25} {1,25}", dir.FullName, dir.LastWriteTime)
        Next dir

        Console.WriteLine()
        Console.WriteLine( _
            "Files that begin with the letter 'c' in {0}", path)
        Dim file As FileInfo
        For Each file In files
            Console.WriteLine( _
                "{0,-25} {1,25}", file.Name, file.LastWriteTime)
        Next file
    End Sub 
End Class

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Show:
© 2014 Microsoft