ConnectionOptions.Impersonation 屬性
重要
部分資訊涉及發行前產品，在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊，不做任何明確或隱含的瑕疵擔保。
取得或設定 COM 模擬等級，以使用於這個連接中的作業。
public:
property System::Management::ImpersonationLevel Impersonation { System::Management::ImpersonationLevel get(); void set(System::Management::ImpersonationLevel value); };C#
public System.Management.ImpersonationLevel Impersonation { get; set; }member this.Impersonation : System.Management.ImpersonationLevel with get, setPublic Property Impersonation As ImpersonationLevel傳回 ImpersonationLevel 列舉值，表示用於連接 WMI 的模擬等級。
下列範例會連線到遠端電腦，並顯示遠端電腦上作業系統的相關信息。 會建立 ， ConnectionOptions 以使用所需的連線選項連線到遠端電腦。
C#
using System;
using System.Management;
public class RemoteConnect
{
public static void Main()
{
// Build an options object for the remote connection
// if you plan to connect to the remote
// computer with a different user name
// and password than the one you are currently using.
// This example uses the default values.
ConnectionOptions options =
new ConnectionOptions();
options.Impersonation =
System.Management.ImpersonationLevel.Impersonate;
// Make a connection to a remote computer.
// Replace the "FullComputerName" section of the
// string "\\\\FullComputerName\\root\\cimv2" with
// the full computer name or IP address of the
// remote computer.
ManagementScope scope =
new ManagementScope(
"\\\\FullComputerName\\root\\cimv2", options);
scope.Connect();
//Query system for Operating System information
ObjectQuery query = new ObjectQuery(
"SELECT * FROM Win32_OperatingSystem");
ManagementObjectSearcher searcher =
new ManagementObjectSearcher(scope,query);
ManagementObjectCollection queryCollection = searcher.Get();
foreach ( ManagementObject m in queryCollection)
{
// Display the remote computer information
Console.WriteLine("Computer Name : {0}",
m["csname"]);
Console.WriteLine("Windows Directory : {0}",
m["WindowsDirectory"]);
Console.WriteLine("Operating System: {0}",
m["Caption"]);
Console.WriteLine("Version: {0}", m["Version"]);
Console.WriteLine("Manufacturer : {0}",
m["Manufacturer"]);
}
}
}
Imports System.Management
Public Class RemoteConnect
Public Overloads Shared Function Main( _
ByVal args() As String) As Integer
' Build an options object for the remote connection
' if you plan to connect to the remote
' computer with a different user name
' and password than the one you are currently using
Dim options As ConnectionOptions
options = New ConnectionOptions
options.Impersonation = 3
' System.Management.ImpersonationLevel.Impersonate = 3
' Make a connection to a remote computer.
' Replace the "FullComputerName" section of the
' string "\\FullComputerName\root\cimv2" with
' the full computer name or IP address of the
' remote computer.
Dim scope As ManagementScope
scope = New ManagementScope( _
"\\FullComputerName\root\cimv2", options)
scope.Connect()
' Query system for Operating System information
Dim query As ObjectQuery
query = New ObjectQuery( _
"SELECT * FROM Win32_OperatingSystem")
Dim searcher As ManagementObjectSearcher
searcher = _
New ManagementObjectSearcher(scope, query)
Dim queryCollection As ManagementObjectCollection
queryCollection = searcher.Get()
Dim m As ManagementObject
For Each m In queryCollection
' Display the remote computer information
Console.WriteLine("Computer Name : {0}", _
m("csname"))
Console.WriteLine("Windows Directory : {0}", _
m("WindowsDirectory"))
Console.WriteLine("Operating System: {0}", _
m("Caption"))
Console.WriteLine("Version: {0}", m("Version"))
Console.WriteLine("Manufacturer : {0}", _
m("Manufacturer"))
Next
Return 0
End Function
End Class
當提供者是受信任的應用程式或服務時，此 ImpersonationLevel.Impersonate 設定會很有利。 它不需要提供者執行要求的作業的用戶端身分識別和存取檢查。 不過，如果基於某些原因，提供者無法信任，允許它模擬用戶端可能會構成安全性威脅。 在這種情況下，我們建議用戶端將此屬性設定為較低的值，例如 ImpersonationLevel.Identify。 請注意，這可能會導致提供者無法執行要求的作業，因為沒有足夠的許可權或無法執行存取檢查。
要用於此連線中作業的 COM 模擬層級。 預設值為 ImpersonationLevel.Impersonate，表示 WMI 提供者可以在此連接中執行要求的作業時模擬用戶端。
完全信任立即呼叫者。 這個成員無法供部分信任的程式碼使用。 如需詳細資訊，請參閱 使用部分信任程式代碼的連結庫。
| 產品 | 版本 |
|---|---|
| .NET Framework | 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
