SearchOption SearchOption SearchOption SearchOption Enum

Definition

Gibt an, ob das aktuelle Verzeichnis oder das aktuelle Verzeichnis und alle Unterverzeichnisse durchsucht werden sollen. Specifies whether to search the current directory, or the current directory and all subdirectories.

public enum class SearchOption
[System.Runtime.InteropServices.ComVisible(true)]
[Serializable]
public enum SearchOption
type SearchOption = 
Public Enum SearchOption
Vererbung
Attribute
ComVisibleAttribute SerializableAttribute

Felder

AllDirectories AllDirectories AllDirectories AllDirectories 1

Schließt das aktuelle Verzeichnis und alle Unterverzeichnisse in einen Suchvorgang ein. Includes the current directory and all its subdirectories in a search operation. Diese Option schließt Punkte für die erneute Analyse wie bereitgestellte Laufwerke und symbolische Links in die Suche ein. This option includes reparse points such as mounted drives and symbolic links in the search.

TopDirectoryOnly TopDirectoryOnly TopDirectoryOnly TopDirectoryOnly 0

Schließt nur das aktuelle Verzeichnis in den Suchevorgang ein. Includes only the current directory in a search operation.

Beispiele

Das folgende Beispiel listet alle Verzeichnisse und Dateien, die mit dem Buchstaben "c", wie in beginnen "c:\".The following example lists all the directories and files that begin with the letter "c", as in "c:\". In diesem Beispiel TopDirectoryOnly wird verwendet, um anzugeben, dass nur das Verzeichnis der obersten Ebene durchsucht werden sollen.In this example, TopDirectoryOnly is used to specify that only the top-level directory should be searched.

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
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 AllDirectories bei der Suche und die Verzeichnisstruktur enthält einen Link, der eine Schleife erstellt, in der Suchvorgang eine Endlosschleife eintritt.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.

Gilt für: