SearchOption Enumeration

Definition

Namespace:

System.IO

Assemblys:

mscorlib.dll, System.IO.FileSystem.dll

Assembly:

System.IO.FileSystem.dll

Assembly:

System.Runtime.dll

Assembly:

mscorlib.dll

Assembly:

netstandard.dll

Gibt an, ob das aktuelle Verzeichnis oder das aktuelle Verzeichnis und alle Unterverzeichnisse durchsucht werden sollen.

public enum class SearchOption

public enum SearchOption

[System.Runtime.InteropServices.ComVisible(true)]
[System.Serializable]
public enum SearchOption

type SearchOption = 

[<System.Runtime.InteropServices.ComVisible(true)>]
[<System.Serializable>]
type SearchOption = 

Public Enum SearchOption

Vererbung

Object

ValueType

Enum

SearchOption

Attribute

ComVisibleAttribute SerializableAttribute

Felder

AllDirectories	1	Schließt das aktuelle Verzeichnis und alle Unterverzeichnisse in einen Suchvorgang ein. Diese Option schließt Punkte für die erneute Analyse wie bereitgestellte Laufwerke und symbolische Links in die Suche ein.
TopDirectoryOnly	0	Schließt nur das aktuelle Verzeichnis in den Suchevorgang ein.

Beispiele

Im folgenden Beispiel werden alle Verzeichnisse und Dateien aufgelistet, die mit dem Buchstaben "c" beginnen, wie in "c:\". In diesem Beispiel wird verwendet, um anzugeben, TopDirectoryOnly dass nur das Verzeichnis der obersten Ebene durchsucht werden soll.

using namespace System;
using namespace System::IO;

ref class App
{
public:
    static void Main()
    {
        // Specify the directory you want to manipulate.
        String^ path = "c:\\";
        String^ searchPattern = "c*";

        DirectoryInfo^ di = gcnew DirectoryInfo(path);
        array<DirectoryInfo^>^ directories =
            di->GetDirectories(searchPattern, SearchOption::TopDirectoryOnly);

        array<FileInfo^>^ files =
            di->GetFiles(searchPattern, SearchOption::TopDirectoryOnly);

        Console::WriteLine(
            "Directories that begin with the letter \"c\" in {0}", path);
        for each (DirectoryInfo^ dir in directories)
        {
            Console::WriteLine(
                "{0,-25} {1,25}", dir->FullName, dir->LastWriteTime);
        }

        Console::WriteLine();
        Console::WriteLine(
            "Files that begin with the letter \"c\" in {0}", path);
        for each (FileInfo^ file in files)
        {
            Console::WriteLine(
                "{0,-25} {1,25}", file->Name, file->LastWriteTime);
        }
    } // Main()
}; // App()

int main()
{
    App::Main();
}

using System;
using System.IO;

class App
{
    public static void Main()
    {
        // Specify the directory you want to manipulate.
        string path = @"c:\";
        string searchPattern = "c*";

        DirectoryInfo di = new DirectoryInfo(path);
        DirectoryInfo[] directories =
            di.GetDirectories(searchPattern, SearchOption.TopDirectoryOnly);

        FileInfo[] files =
            di.GetFiles(searchPattern, SearchOption.TopDirectoryOnly);

        Console.WriteLine(
            "Directories that begin with the letter \"c\" in {0}", path);
        foreach (DirectoryInfo dir in directories)
        {
            Console.WriteLine(
                "{0,-25} {1,25}", dir.FullName, dir.LastWriteTime);
        }

        Console.WriteLine();
        Console.WriteLine(
            "Files that begin with the letter \"c\" in {0}", path);
        foreach (FileInfo file in files)
        {
            Console.WriteLine(
                "{0,-25} {1,25}", file.Name, file.LastWriteTime);
        }
    } // Main()
} // App()

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

Hinweise

Wenn Sie in der Suche auswählen AllDirectories und die Verzeichnisstruktur einen Link enthält, der eine Schleife erstellt, wird beim Suchvorgang eine Endlosschleife ausgeführt.