本文整理匯總了VB.NET中System.Net.DnsPermissionAttribute類的典型用法代碼示例。如果您正苦於以下問題：VB.NET DnsPermissionAttribute類的具體用法？VB.NET DnsPermissionAttribute怎麽用？VB.NET DnsPermissionAttribute使用的例子？那麽, 這裏精選的類代碼示例或許可以為您提供幫助。
在下文中一共展示了DnsPermissionAttribute類的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的VB.NET代碼示例。
示例1: Main
' Uses the DnsPermissionAttribute to restrict access only to those who have permission.
<DnsPermission(SecurityAction.Demand, Unrestricted := true)> _
Public Class MyClass1
Public Shared Function GetIPAddress() As IPAddress
Dim ipAddress As IPAddress = Dns.Resolve("localhost").AddressList(0)
Return ipAddress
End Function 'GetIPAddress
Public Shared Sub Main()
Try
' Grants Access.
Console.WriteLine(("Access granted" + ControlChars.NewLine + " The local host IP Address is :" + MyClass1.GetIPAddress().ToString()))
' Denies Access.
Catch securityException As SecurityException
Console.WriteLine("Access denied")
Console.WriteLine(securityException.ToString())
End Try
End Sub
End Class