Uri.IsLoopback Property

 

Gets whether the specified Uri references the local host.

Namespace:   System
Assembly:  System (in System.dll)

Public ReadOnly Property IsLoopback As Boolean

Property Value

Type: System.Boolean

A Boolean value that is true if this Uri references the local host; otherwise, false.

Exception Condition
InvalidOperationException

This instance represents a relative URI, and this property is valid only for absolute URIs.

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). All other URIs return false.

The following example creates a Uri instance and determines whether it references a local host.

    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

End Sub 'GetParts

Universal Windows Platform
Available since 8
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Windows Phone Silverlight
Available since 8.0
Windows Phone
Available since 8.1
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