本文整理汇总了VB.NET中System.Security.AccessControl.MutexSecurity.RemoveAccessRuleSpecific方法的典型用法代码示例。如果您正苦于以下问题:VB.NET MutexSecurity.RemoveAccessRuleSpecific方法的具体用法?VB.NET MutexSecurity.RemoveAccessRuleSpecific怎么用?VB.NET MutexSecurity.RemoveAccessRuleSpecific使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类System.Security.AccessControl.MutexSecurity
的用法示例。
在下文中一共展示了MutexSecurity.RemoveAccessRuleSpecific方法的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: Example
' 导入命名空间
Imports System.Threading
Imports System.Security.AccessControl
Imports System.Security.Principal
Public Class Example
Public Shared Sub Main()
' Create a string representing the current user.
Dim user As String = Environment.UserDomainName _
& "\" & Environment.UserName
' Create a security object that grants no access.
Dim mSec As New MutexSecurity()
' Add a rule that grants the current user the
' right to enter or release the mutex.
Dim ruleA As New MutexAccessRule(user, _
MutexRights.Synchronize _
Or MutexRights.Modify, _
AccessControlType.Allow)
mSec.AddAccessRule(ruleA)
' Add a rule that denies the current user the
' right to change permissions on the mutex.
Dim rule As New MutexAccessRule(user, _
MutexRights.ChangePermissions, _
AccessControlType.Deny)
mSec.AddAccessRule(rule)
' Display the rules in the security object.
ShowSecurity(mSec)
' Add a rule that allows the current user the
' right to read permissions on the mutex. This rule
' is merged with the existing Allow rule.
rule = New MutexAccessRule(user, _
MutexRights.ReadPermissions, _
AccessControlType.Allow)
mSec.AddAccessRule(rule)
ShowSecurity(mSec)
' Attempt to remove the original rule (granting
' the right to enter or release the mutex) with
' RemoveAccessRuleSpecific. The removal fails,
' because the right to read the permissions on the
' mutex has been added to the rule, so that it no
' longer matches the original rule.
Console.WriteLine("Attempt to use RemoveAccessRuleSpecific on the original rule.")
mSec.RemoveAccessRuleSpecific(ruleA)
ShowSecurity(mSec)
' Create a rule that grants the current user
' the right to enter or release the mutex, and
' to read permissions. Use this rule to remove
' the Allow rule for the current user.
Console.WriteLine("Use RemoveAccessRuleSpecific with the correct rights.")
rule = New MutexAccessRule(user, _
MutexRights.Synchronize _
Or MutexRights.Modify _
Or MutexRights.ReadPermissions, _
AccessControlType.Allow)
mSec.RemoveAccessRuleSpecific(rule)
ShowSecurity(mSec)
End Sub
Private Shared Sub ShowSecurity(ByVal security As MutexSecurity)
Console.WriteLine(vbCrLf & "Current access rules:" & vbCrLf)
For Each ar As MutexAccessRule In _
security.GetAccessRules(True, True, GetType(NTAccount))
Console.WriteLine(" User: {0}", ar.IdentityReference)
Console.WriteLine(" Type: {0}", ar.AccessControlType)
Console.WriteLine(" Rights: {0}", ar.MutexRights)
Console.WriteLine()
Next
End Sub
End Class
'This code example produces output similar to following:
'
'Current access rules:
'
' User: TestDomain\TestUser
' Type: Deny
' Rights: ChangePermissions
'
' User: TestDomain\TestUser
' Type: Allow
' Rights: Modify, Synchronize
'
'
'Current access rules:
'
' User: TestDomain\TestUser
' Type: Deny
' Rights: ChangePermissions
'
' User: TestDomain\TestUser
' Type: Allow
' Rights: Modify, ReadPermissions, Synchronize
'
'Attempt to use RemoveAccessRuleSpecific on the original rule.
'
'Current access rules:
'
' User: TestDomain\TestUser
' Type: Deny
' Rights: ChangePermissions
'
' User: TestDomain\TestUser
' Type: Allow
' Rights: Modify, ReadPermissions, Synchronize
'
'Use RemoveAccessRuleSpecific with the correct rights.
'
'Current access rules:
'
' User: TestDomain\TestUser
' Type: Deny
' Rights: ChangePermissions
开发者ID:VB.NET开发者,项目名称:System.Security.AccessControl,代码行数:128,代码来源:MutexSecurity.RemoveAccessRuleSpecific