本文整理汇总了VB.NET中System.Security.Policy.GacMembershipCondition类的典型用法代码示例。如果您正苦于以下问题：VB.NET GacMembershipCondition类的具体用法？VB.NET GacMembershipCondition怎么用？VB.NET GacMembershipCondition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GacMembershipCondition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: GacMembershipConditionDemo
' 导入命名空间
Imports System.Security
Imports System.Security.Policy
Imports System.Collections
Public Class GacMembershipConditionDemo
' Demonstrate the Copy method, which creates an identical
' copy of the current permission.
Private Function CopyDemo() As Boolean
Console.WriteLine( _
"*************************************************************")
Dim Gac1 As New GacMembershipCondition
Console.WriteLine("Original membership condition = ")
Console.WriteLine(Gac1.ToXml().ToString())
Try
Dim membershipCondition As IMembershipCondition = Gac1.Copy()
Console.WriteLine("Result of Copy = ")
Console.WriteLine(CType(membershipCondition, _
GacMembershipCondition).ToXml().ToString())
Catch e As Exception
Console.WriteLine(("Copy failed : " & Gac1.ToString() & _
e.ToString()))
Return False
End Try
Return True
End Function 'CopyDemo
' Demonstrate the Check method, which determines whether the specified
' evidence satisfies the membership condition.
Private Function CheckDemo() As Boolean
Console.WriteLine( _
"*************************************************************")
Dim Gac1 As New GacMembershipCondition
Dim myGac As New GacInstalled
Try
Dim hostEvidence() As Object = {myGac}
Dim assemblyEvidence() As Object
Dim myEvidence As New Evidence(hostEvidence, assemblyEvidence)
Dim retCode As Boolean = Gac1.Check(myEvidence)
Console.WriteLine(("Result of Check = " & retCode.ToString() _
& ControlChars.Lf))
Catch e As Exception
Console.WriteLine(("Check failed : " & Gac1.ToString() & _
e.ToString()))
Return False
End Try
Return True
End Function 'CheckDemo
' Demonstrate the GetHashCode method, which returns a hash code
' for the specified membership condition.
Private Function GetHashCodeDemo() As Boolean
Console.WriteLine( _
"*************************************************************")
Dim Gac1 As New GacMembershipCondition
Try
Console.WriteLine( _
("Result of GetHashCode for a GacMembershipCondition = " _
& Gac1.GetHashCode().ToString() & ControlChars.Lf))
Catch e As Exception
Console.WriteLine(("GetHashCode failed : " & _
Gac1.ToString() & e.ToString()))
Return False
End Try
Return True
End Function 'GetHashCodeDemo
'Demonstrate the ToXml and FromXml methods, including the overloads.
' ToXml creates an XML encoding of the membership condition and its
' current state; FromXml reconstructs a membership condition with the
' specified state from the XML encoding.
Private Function ToFromXmlDemo() As Boolean
Console.WriteLine( _
"*************************************************************")
Try
Dim Gac1 As New GacMembershipCondition
Dim Gac2 As New GacMembershipCondition
' Roundtrip a GacMembershipCondition to and from an XML encoding.
Gac2.FromXml(Gac1.ToXml())
Dim result As Boolean = Gac2.Equals(Gac1)
If result Then
Console.WriteLine(("Result of ToXml() = " & _
Gac2.ToXml().ToString()))
Console.WriteLine(("Result of ToFromXml roundtrip = " & _
Gac2.ToString()))
Else
Console.WriteLine(Gac2.ToString())
Console.WriteLine(Gac1.ToString())
Return False
End If
Dim Gac3 As New GacMembershipCondition
Dim Gac4 As New GacMembershipCondition
Dim policyEnumerator As IEnumerator = _
SecurityManager.PolicyHierarchy()
While policyEnumerator.MoveNext()
Dim currentLevel As PolicyLevel = _
CType(policyEnumerator.Current, PolicyLevel)
If currentLevel.Label = "Machine" Then
Console.WriteLine(("Result of ToXml(level) = " & _
Gac3.ToXml(currentLevel).ToString()))
Gac4.FromXml(Gac3.ToXml(), currentLevel)
Console.WriteLine(("Result of FromXml(element, level) = " _
& Gac4.ToString()))
End If
End While
Catch e As Exception
Console.WriteLine(("ToFromXml failed. " & e.ToString()))
Return False
End Try
Return True
End Function 'ToFromXmlDemo
' Invoke all demos.
Public Function RunDemo() As Boolean
Dim returnCode As Boolean = True
Dim tempReturnCode As Boolean
' Call the Copy demo.
tempReturnCode = CopyDemo()
If tempReturnCode = True Then
Console.Out.WriteLine("Copy demo completed successfully.")
Else
Console.Out.WriteLine("Copy demo failed.")
End If
returnCode = tempReturnCode AndAlso returnCode
' Call the Check demo.
tempReturnCode = CheckDemo()
If tempReturnCode = True Then
Console.Out.WriteLine("Check demo completed successfully.")
Else
Console.Out.WriteLine("Check demo failed.")
End If
returnCode = tempReturnCode AndAlso returnCode
' Call the GetHashCode demo.
tempReturnCode = GetHashCodeDemo()
If tempReturnCode = True Then
Console.Out.WriteLine("GetHashCode demo completed successfully.")
Else
Console.Out.WriteLine("GetHashCode demo failed.")
End If
returnCode = tempReturnCode AndAlso returnCode
' Call the ToFromXml demo.
tempReturnCode = ToFromXmlDemo()
If tempReturnCode = True Then
Console.Out.WriteLine("ToFromXml demo completed successfully.")
Else
Console.Out.WriteLine("ToFromXml demo failed.")
End If
returnCode = tempReturnCode AndAlso returnCode
Return returnCode
End Function 'RunDemo
' Test harness.
Public Overloads Shared Sub Main(ByVal args() As [String])
Try
Dim testcase As New GacMembershipConditionDemo
Dim returnCode As Boolean = testcase.RunDemo()
If returnCode Then
Console.Out.WriteLine( _
"The GacMembershipCondition demo completed successfully.")
Console.Out.WriteLine("Press the Enter key to exit.")
Dim consoleInput As String = Console.ReadLine()
System.Environment.ExitCode = 100
Else
Console.Out.WriteLine("The GacMembershipCondition demo failed.")
Console.Out.WriteLine("Press the ENTER key to exit.")
Dim consoleInput As String = Console.ReadLine()
System.Environment.ExitCode = 101
End If
Catch e As Exception
Console.Out.WriteLine("The GacIdentityPermission demo failed.")
Console.WriteLine(e.ToString())
Console.Out.WriteLine("Press the Enter key to exit.")
Dim consoleInput As String = Console.ReadLine()
System.Environment.ExitCode = 101
End Try
End Sub
End Class