Uri.IsLoopback Uri.IsLoopback Uri.IsLoopback Uri.IsLoopback Property

Definição

Obtém se o Uri especificado faz referência ao host local.Gets whether the specified Uri references the local host.

public:
 property bool IsLoopback { bool get(); };
public bool IsLoopback { get; }
member this.IsLoopback : bool
Public ReadOnly Property IsLoopback As Boolean

Valor da propriedade

Um valor Boolean que será true, se esse Uri fizer referência ao host local; caso contrário, false.A Boolean value that is true if this Uri references the local host; otherwise, false.

Exceções

Esta instância representa uma URL relativa, e esta propriedade só é válida para URIs absolutos.This instance represents a relative URI, and this property is valid only for absolute URIs.

Exemplos

O exemplo a seguir cria Uri uma instância e determina se ela faz referência a um host local.The following example creates a Uri instance and determines whether it references a local host.

Uri^ uriAddress2 = gcnew Uri( "file://server/filename.ext" );
Console::WriteLine( uriAddress2->LocalPath );
Console::WriteLine( "Uri {0} a UNC path", uriAddress2->IsUnc ? (String^)"is" : "is not" );
Console::WriteLine( "Uri {0} a local host", uriAddress2->IsLoopback ? (String^)"is" : "is not" );
Console::WriteLine( "Uri {0} a file", uriAddress2->IsFile ? (String^)"is" : "is not" );
// The example displays the following output:
//    \\server\filename.ext
//    Uri is a UNC path
//    Uri is not a local host
//    Uri is a file
Uri uriAddress2 =  new Uri("file://server/filename.ext");
Console.WriteLine(uriAddress2.LocalPath);
Console.WriteLine("Uri {0} a UNC path", uriAddress2.IsUnc ? "is" : "is not");
Console.WriteLine("Uri {0} a local host", uriAddress2.IsLoopback ? "is" : "is not");
Console.WriteLine("Uri {0} a file", uriAddress2.IsFile ? "is" : "is not");
// The example displays the following output:
//    \\server\filename.ext
//    Uri is a UNC path
//    Uri is not a local host
//    Uri is a file
Dim uriAddress2 As New Uri("file://server/filename.ext")
Console.WriteLine(uriAddress2.LocalPath)
Console.WriteLine("Uri {0} a UNC path", IIf(uriAddress2.IsUnc, "is", "is not")) 'TODO: For performance reasons this should be changed to nested IF statements
Console.WriteLine("Uri {0} a local host", IIf(uriAddress2.IsLoopback, "is", "is not")) 'TODO: For performance reasons this should be changed to nested IF statements
Console.WriteLine("Uri {0} a file", IIf(uriAddress2.IsFile, "is", "is not")) 'TODO: For performance reasons this should be changed to nested IF statements
' The example displays the following output:
'    \\server\filename.ext
'    Uri is a UNC path
'    Uri is not a local host
'    Uri is a file

Comentários

IsLoopbackretorna true se o URI especificado quando esta instância foi criada for 127.0.0.1, loopback ou localhost, ou se o URI não especificou as informações do host (por exemplo, file:///c:dir/file.txt).IsLoopback returns true if the URI specified when this instance was created was 127.0.0.1, loopback, or localhost, or if the URI did not specify host information (for example, file:///c:Dir/file.txt). Todos os outros URIs falseretornam.All other URIs return false.

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