DirectoryEntry.Exists(String) DirectoryEntry.Exists(String) DirectoryEntry.Exists(String) DirectoryEntry.Exists(String) Method

定義

決定指定的路徑是否表示目錄服務中的實際項目。Determines if the specified path represents an actual entry in the directory service.

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 String String String

要驗證之項目的路徑。The path of the entry to verify.

傳回

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 falsetrue if the specified path represents a valid entry in the directory service; otherwise, false.

範例

下列範例會採用一個引數,並判斷路徑是否對應至有效DirectoryEntry的。The following example takes one argument and determines whether the path corresponds to a valid 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);  
}  

適用於