以编程方式访问 WMI 提供程序
本主题尚未完成。
WMI 提供程序概述
用于获取与本主题中所示代码示例中的 Reporting Services 的有关信息的命名空间位于 Microsoft .NET Framework 中的 System.Management 命名空间中。 System.Management 命名空间提供一组托管代码类，.NET Framework 应用程序可通过这些类访问和操作管理信息。 有关使用采用 System.Management 命名空间的 Reporting Services WMI 类的详细信息，请参阅 Microsoft .NET Framework SDK 中的“使用 System.Managment 访问管理信息”。
查找报表服务器实例
查找与您的报表服务器安装有关的信息的首选方式是枚举 WMI 实例集合。 下面的示例说明如何通过创建某一集合并循环遍历该集合以显示属性，查找每个报表服务器实例上的属性。
Imports System
Imports System.Management
Imports System.IO
Module Module1
Sub Main()
Const WmiNamespace As String = "\\<ServerName>\root\Microsoft\SqlServer\ReportServer\<InstanceName>\v10\Admin"
Const WmiRSClass As String = _
"\\<ServerName>\root\Microsoft\SqlServer\ReportServer\<InstanceName>\v10\admin:MSReportServer_ConfigurationSetting"
Dim serverClass As ManagementClass
Dim scope As ManagementScope
scope = New ManagementScope(WmiNamespace)
'Connect to the Reporting Services namespace.
scope.Connect()
'Create the server class.
serverClass = New ManagementClass(WmiRSClass)
'Connect to the management object.
serverClass.Get()
If serverClass Is Nothing Then Throw New Exception("No class found")
'Loop through the instances of the server class.
Dim instances As ManagementObjectCollection = serverClass.GetInstances()
Dim instance As ManagementObject
For Each instance In instances
Console.Out.WriteLine("Instance Detected")
Dim instProps As PropertyDataCollection = instance.Properties
Dim prop As PropertyData
For Each prop In instProps
Dim name As String = prop.Name
Dim val As Object = prop.Value
Console.Out.Write("Property Name: " + name)
If val Is Nothing Then
Console.Out.WriteLine(" Value: <null>")
Else
Console.Out.WriteLine(" Value: " + val.ToString())
End If
Next
Next
Console.WriteLine("--- Press any key ---")
Console.ReadKey()
End Sub
End Module
using System;
using System.Management;
using System.IO;
[assembly: CLSCompliant(true)]
class Class1
{
[STAThread]
static void Main(string[] args)
{
const string WmiNamespace = @"\\<ServerName>\root\Microsoft\SqlServer\ReportServer\<InstanceName>\v10\Admin";
const string WmiRSClass =
@"\\<ServerName>\root\Microsoft\SqlServer\ReportServer\<InstanceName>\v10\admin:MSReportServer_ConfigurationSetting";
ManagementClass serverClass;
ManagementScope scope;
scope = new ManagementScope(WmiNamespace);
// Connect to the Reporting Services namespace.
scope.Connect();
// Create the server class.
serverClass = new ManagementClass(WmiRSClass);
// Connect to the management object.
serverClass.Get();
if (serverClass == null)
throw new Exception("No class found");
// Loop through the instances of the server class.
ManagementObjectCollection instances = serverClass.GetInstances();
foreach (ManagementObject instance in instances)
{
Console.Out.WriteLine("Instance Detected");
PropertyDataCollection instProps = instance.Properties;
foreach (PropertyData prop in instProps)
{
string name = prop.Name;
object val = prop.Value;
Console.Out.Write("Property Name: " + name);
if (val != null)
Console.Out.WriteLine(" Value: " + val.ToString());
else
Console.Out.WriteLine(" Value: <null>");
}
}
Console.WriteLine("\n--- Press any key ---");
Console.ReadKey();
}
}