WebPermission.Intersect(IPermission) 方法

定義

命名空間:

System.Net

組件:

System.Security.Permissions.dll

套件:

System.Security.Permissions v8.0.0

來源:

WebPermission.cs

傳回兩個 WebPermission 執行個體的邏輯交集。

public:
 override System::Security::IPermission ^ Intersect(System::Security::IPermission ^ target);

public override System.Security.IPermission Intersect (System.Security.IPermission target);

override this.Intersect : System.Security.IPermission -> System.Security.IPermission

Public Overrides Function Intersect (target As IPermission) As IPermission

參數

target

IPermission

要與目前執行個體比較的 WebPermission。

傳回

IPermission

新 WebPermission，表示目前執行個體和 target 參數的交集。 如果交集為空的，方法會傳回 null。

例外狀況

ArgumentException

target 不是 null 或屬於 WebPermission 型別

範例

下列範例示範如何使用兩個現有WebPermission實例WebPermission的邏輯交集，建立的實例。

// Create a third WebPermission instance via the logical intersection of the previous
// two WebPermission instances.
WebPermission^ myWebPermission3 = (WebPermission^)(myWebPermission1->Intersect( myWebPermission2 ));

Console::WriteLine( "\nAttributes and Values of  the WebPermission instance after the Intersect are:\n" );
Console::WriteLine( myWebPermission3->ToXml() );

// Create a third WebPermission instance via the logical intersection of the previous
// two WebPermission instances.
WebPermission myWebPermission3 =(WebPermission) myWebPermission1.Intersect(myWebPermission2);

Console.WriteLine("\nAttributes and Values of  the WebPermission instance after the Intersect are:\n");   
Console.WriteLine(myWebPermission3.ToXml().ToString());

   ' Create a third WebPermission instance via the logical intersection of the previous
   ' two WebPermission instances.
   Dim myWebPermission3 As WebPermission = CType(myWebPermission1.Intersect(myWebPermission2), WebPermission)
   
   Console.WriteLine(ControlChars.Cr + "Attributes and Values of  the WebPermission instance after the Intersect are:" + ControlChars.Cr)
   Console.WriteLine(myWebPermission3.ToXml().ToString())
End Sub

備註

Intersect 會傳回 ， WebPermission 其中包含和目前 實例中 target 通用的許可權。

這個方法會 Intersect 覆寫 並實作以支援 IPermission 介面。