Mengakses Penyedia WMI secara terprogram
Gambaran umum Penyedia WMI
Namespace layanan yang digunakan untuk mendapatkan informasi tentang Reporting Services dalam sampel kode yang diperlihatkan dalam artikel ini adalah namespace System.Management , yang ditemukan di Microsoft .NET Framework. Namespace System.Management menyediakan sekumpulan kelas kode terkelola tempat aplikasi .NET Framework dapat mengakses dan memanipulasi informasi manajemen. Untuk informasi selengkapnya tentang menggunakan kelas WMI Reporting Services dengan namespace System.Management , lihat "Informasi Manajemen Akses dengan System.Management" di Microsoft .NET Framework SDK.
Menemukan instans server laporan
Cara yang disukai untuk menemukan informasi pada penginstalan server laporan Anda adalah dengan menghitung melalui koleksi instans WMI. Contoh berikut menunjukkan cara menemukan properti pada setiap instans server laporan dengan membuat koleksi, dan mengulangi koleksi untuk menampilkan properti.
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>\v13\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>\v13\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();
}
}