DirectoryEntry.Exists(String) 方法

定義

命名空間:

System.DirectoryServices

組件:

System.DirectoryServices.dll

套件:

System.DirectoryServices v8.0.0

來源:

DirectoryEntry.cs

決定指定的路徑是否表示目錄服務中的實際項目。

public:
 static bool Exists(System::String ^ path);

public static bool Exists (string path);

static member Exists : string -> bool

Public Shared Function Exists (path As String) As Boolean

參數

path

String

所要驗證之項目的路徑。

傳回

Boolean

如果指定的路徑表示目錄服務中的有效項目，則為 true；否則為 false。

範例

下列範例會採用一個自變數，並判斷路徑是否對應至有效的 DirectoryEntry。

Dim myADSPath As String = "LDAP://onecity/CN=Users,DC=onecity,DC=corp,DC=fabrikam,DC=com"  
' Determine whether the given path is correct for the DirectoryEntry.  
If DirectoryEntry.Exists(myADSPath) Then  
   Console.WriteLine("The path {0} is valid",myADSPath)  
Else  
   Console.WriteLine("The path {0} is invalid",myADSPath)  
End If  

string myADSPath ="LDAP://onecity/CN=Users,DC=onecity,DC=corp,DC=fabrikam,DC=com";  

// Determine whether the given path is correct for the DirectoryEntry.  
if (DirectoryEntry.Exists(myADSPath))  
{  
    Console.WriteLine("The path {0} is valid",myADSPath);  
}  
    else  
{  
    Console.WriteLine("The path {0} is invalid",myADSPath);  
}  

String^ myADSPath = "LDAP://onecity/CN=Users,DC=onecity,DC=corp,DC=fabrikam,DC=com";  
// Determine whether the given path is correct for the DirectoryEntry.  
if (DirectoryEntry::Exists(myADSPath))   
{  
    Console::WriteLine("The path {0} is valid", myADSPath);  
}   
else   
{  
    Console::WriteLine("The path {0} is invalid", myADSPath);  
}