PermissionSet.IsSubsetOf(PermissionSet) 方法

定義

命名空間:

System.Security

組件:

System.Runtime.dll

來源:

PermissionSet.cs

判斷目前的 PermissionSet 是否為指定 PermissionSet 的子集。

public:
 bool IsSubsetOf(System::Security::PermissionSet ^ target);

public bool IsSubsetOf (System.Security.PermissionSet? target);

member this.IsSubsetOf : System.Security.PermissionSet -> bool

Public Function IsSubsetOf (target As PermissionSet) As Boolean

參數

target

PermissionSet

要測試子集關聯性的權限集。 這必須是 PermissionSet 或 NamedPermissionSet。

傳回

Boolean

如果目前的 PermissionSet 是 target 參數的子集則為 true否則為 false。

範例

下列程式代碼範例顯示 方法的使用 IsSubsetOf 方式。 此程式代碼範例是針對 類別提供的較大範例的 PermissionSet 一部分。

// Create a second permission set and compare it to the first permission set.
ps2->AddPermission( gcnew EnvironmentPermission( EnvironmentPermissionAccess::Read,"USERNAME" ) );
ps2->AddPermission( gcnew EnvironmentPermission( EnvironmentPermissionAccess::Write,"COMPUTERNAME" ) );
IEnumerator^ list =  ps1->GetEnumerator();
Console::WriteLine("Permissions in first permission set:");
      while (list->MoveNext())
          Console::WriteLine(list->Current->ToString());
Console::WriteLine( "Second permission IsSubsetOf first permission = {0}", ps2->IsSubsetOf( ps1 ) );

// Create a second permission set and compare it to the first permission set.
ps2.AddPermission(
    new EnvironmentPermission(EnvironmentPermissionAccess.Read, "USERNAME"));
ps2.AddPermission(
    new EnvironmentPermission(EnvironmentPermissionAccess.Write, "COMPUTERNAME"));
IEnumerator list =  ps1.GetEnumerator();
Console.WriteLine("Permissions in first permission set:");
while (list.MoveNext())
    Console.WriteLine(list.Current.ToString());
Console.WriteLine("Second permission IsSubsetOf first permission = " + ps2.IsSubsetOf(ps1));

' Create a second permission set and compare it to the first permission set.
ps2.AddPermission(New EnvironmentPermission(EnvironmentPermissionAccess.Read, "USERNAME"))
ps2.AddPermission(New EnvironmentPermission(EnvironmentPermissionAccess.Write, "COMPUTERNAME"))
Console.WriteLine("Permissions in first permission set:")
Dim list As IEnumerator = ps1.GetEnumerator()
While list.MoveNext()
    Console.WriteLine(list.Current.ToString())
End While
Console.WriteLine("Second permission IsSubsetOf first permission = " & ps2.IsSubsetOf(ps1))

備註

PermissionSet如果目標的所有要求都成功PermissionSet，則為目標的PermissionSet子集。 也就是說，目標至少包含子集中包含的許可權。