本文整理匯總了VB.NET中System.Security.Permissions.SecurityAction枚舉的典型用法代碼示例。如果您正苦於以下問題：VB.NET SecurityAction枚舉的具體用法？VB.NET SecurityAction怎麽用？VB.NET SecurityAction使用的例子？那麽, 這裏精選的枚舉代碼示例或許可以為您提供幫助。
在下文中一共展示了SecurityAction枚舉的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
Option Strict On
Imports System.Security.Permissions
Imports System.IO.IsolatedStorage
Imports System.IO
' Notify the CLR to only grant IsolatedStorageFilePermission to called methods.
' This restricts the called methods to working only with storage files that are isolated
' by user and assembly.
<IsolatedStorageFilePermission(SecurityAction.PermitOnly, UsageAllowed:=IsolatedStorageContainment.AssemblyIsolationByUser)> _
Public NotInheritable Class App
Shared Sub Main()
WriteIsolatedStorage()
End Sub
Shared Sub WriteIsolatedStorage()
' Attempt to create a storage file that is isolated by user and assembly.
' IsolatedStorageFilePermission granted to the attribute at the top of this file
' allows CLR to load this assembly and execution of this statement.
Dim s As New IsolatedStorageFileStream("AssemblyData", FileMode.Create, IsolatedStorageFile.GetUserStoreForAssembly())
Try
' Write some data out to the isolated file.
Dim sw As New StreamWriter(s)
Try
sw.Write("This is some test data.")
Finally
sw.Dispose()
End Try
Finally
s.Dispose()
End Try
' Attempt to open the file that was previously created.
Dim t As New IsolatedStorageFileStream("AssemblyData", FileMode.Open, IsolatedStorageFile.GetUserStoreForAssembly())
Try
' Read the data from the file and display it.
Dim sr As New StreamReader(t)
Try
Console.WriteLine(sr.ReadLine())
Finally
sr.Dispose()
End Try
Finally
t.Dispose()
End Try
End Sub
End Class輸出：
Some test data.