本文整理汇总了VB.NET中System.Security.Permissions.EnvironmentPermission类的典型用法代码示例。如果您正苦于以下问题：VB.NET EnvironmentPermission类的具体用法？VB.NET EnvironmentPermission怎么用？VB.NET EnvironmentPermission使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了EnvironmentPermission类的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的VB.NET代码示例。
示例1: New EnvironmentPermission
' 导入命名空间
Imports System.Security.Principal
Imports System.Security.Permissions
Imports System.IO
public class MainClass
Shared Sub Main()
Dim oEp As EnvironmentPermission = New EnvironmentPermission(EnvironmentPermissionAccess.Read, "Temp")
Dim sEv As String
oEp.Assert()
Try
sEv = Environment.GetEnvironmentVariable("Temp")
Console.WriteLine("Assert was a success")
Catch objA As System.Exception
Console.WriteLine("Assert failed")
End Try
System.Security.CodeAccessPermission.RevertAssert()
oEp.Deny()
Try
sEv = Environment.GetEnvironmentVariable("Temp")
Console.WriteLine("Deny was a success")
Catch objA As System.Exception
Console.WriteLine("Deny failed")
End Try
Console.WriteLine(oEp.ToString)
End Sub
End Class