vb System.Net.WebPermission类(方法)实例源码

' Create a Regex that accepts all the URLs contianing the host fragment www.contoso.com.
  Dim myRegex As New Regex("http://www\.contoso\.com/.*")
    
  ' Create a WebPermission that gives permission to all the hosts containing same host fragment.
  Dim myWebPermission As New WebPermission(NetworkAccess.Connect, myRegex)
  ' Add connect privileges for a www.adventure-works.com.
  myWebPermission.AddPermission(NetworkAccess.Connect, "http://www.adventure-works.com")
  ' Add accept privileges for www.alpineskihouse.com.
  myWebPermission.AddPermission(NetworkAccess.Accept, "http://www.alpineskihouse.com/")
  ' Check whether all callers higher in the call stack have been granted the permission.
  myWebPermission.Demand()
    
  ' Get all the URIs with Connect permission.
  Dim myConnectEnum As IEnumerator = myWebPermission.ConnectList
  Console.WriteLine(ControlChars.NewLine + "The 'URIs' with 'Connect' permission are :" + ControlChars.NewLine)
  While myConnectEnum.MoveNext()
    Console.WriteLine((ControlChars.Tab + myConnectEnum.Current.ToString()))
  End While 
  
  ' Get all the URIs with Accept permission.	  
  Dim myAcceptEnum As IEnumerator = myWebPermission.AcceptList
  Console.WriteLine(ControlChars.NewLine + ControlChars.NewLine + "The 'URIs' with 'Accept' permission is :" + ControlChars.NewLine)

  While myAcceptEnum.MoveNext()
    Console.WriteLine((ControlChars.Tab + myAcceptEnum.Current))
  End While