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EventLog.GetEventLogs 方法

定義

建立事件記錄檔的陣列。

多載

GetEventLogs(String)

搜尋指定電腦上的所有事件記錄檔,並建立含有清單的 EventLog 物件陣列。

GetEventLogs()

搜尋本機電腦上的所有事件記錄檔,並建立含有清單的 EventLog 物件陣列。

GetEventLogs(String)

來源:
EventLog.cs
來源:
EventLog.cs
來源:
EventLog.cs

搜尋指定電腦上的所有事件記錄檔,並建立含有清單的 EventLog 物件陣列。

public:
 static cli::array <System::Diagnostics::EventLog ^> ^ GetEventLogs(System::String ^ machineName);
public static System.Diagnostics.EventLog[] GetEventLogs (string machineName);
static member GetEventLogs : string -> System.Diagnostics.EventLog[]
Public Shared Function GetEventLogs (machineName As String) As EventLog()

參數

machineName
String

要在其上搜尋事件記錄檔的電腦。

傳回

表示指定電腦上記錄檔的類型 EventLog 的陣列。

例外狀況

machineName 參數是無效的電腦名稱。

您沒有讀取登錄的權限。

-或-

電腦上沒有事件記錄檔服務。

範例

下列範例會取得計算機 「myServer」 上的記錄清單。 然後,它會輸出每個記錄的名稱。

#using <System.dll>

using namespace System;
using namespace System::Diagnostics;
using namespace System::Threading;
int main()
{
   array<EventLog^>^remoteEventLogs;
   remoteEventLogs = EventLog::GetEventLogs( "myServer" );
   Console::WriteLine( "Number of logs on computer: {0}", remoteEventLogs->Length );
   System::Collections::IEnumerator^ myEnum = remoteEventLogs->GetEnumerator();
   while ( myEnum->MoveNext() )
   {
      EventLog^ log = safe_cast<EventLog^>(myEnum->Current);
      Console::WriteLine( "Log: {0}", log->Log );
   }
}
using System;
using System.Diagnostics;

class MySample
{
    public static void Main()
    {
        EventLog[] remoteEventLogs;

        remoteEventLogs = EventLog.GetEventLogs("myServer");

        Console.WriteLine("Number of logs on computer: " + remoteEventLogs.Length);

        foreach (EventLog log in remoteEventLogs)
        {
            Console.WriteLine("Log: " + log.Log);
        }
    }
}
Imports System.Diagnostics
Imports System.Threading

Class MySample
    Public Shared Sub Main()
        Dim remoteEventLogs() As EventLog
        
        remoteEventLogs = EventLog.GetEventLogs("myServer")
        
        Console.WriteLine(("Number of logs on computer: " & remoteEventLogs.Length))
        
        Dim log As EventLog
        For Each log In  remoteEventLogs
            Console.WriteLine(("Log: " & log.Log))
        Next log
    End Sub
End Class

備註

對象的陣列EventLog是在呼叫 GetEventLogs 時,參數所machineName指定的電腦上所有事件記錄檔的快照集。 這不是動態集合,因此不會即時反映刪除或建立記錄。 在讀取或寫入陣列之前,您應該先確認陣列中的記錄檔存在。 數位通常至少包含三個記錄:應用程式、系統和安全性。 如果您在指定的計算機上建立自定義記錄,它們也會出現在數位中。

GetEventLogsstatic是方法,因此可以在類別本身上EventLog呼叫。 不需要建立 對象的實例 EventLog ,即可呼叫 方法。

若要擷取事件記錄檔清單,您必須具有適當的登錄許可權。 這些許可權與呼叫 ExistsSourceExists所需的許可權相同。

另請參閱

適用於

GetEventLogs()

來源:
EventLog.cs
來源:
EventLog.cs
來源:
EventLog.cs

搜尋本機電腦上的所有事件記錄檔,並建立含有清單的 EventLog 物件陣列。

public:
 static cli::array <System::Diagnostics::EventLog ^> ^ GetEventLogs();
public static System.Diagnostics.EventLog[] GetEventLogs ();
static member GetEventLogs : unit -> System.Diagnostics.EventLog[]
Public Shared Function GetEventLogs () As EventLog()

傳回

表示本機電腦上記錄檔的類型 EventLog 的陣列。

例外狀況

您沒有讀取登錄的權限。

-或-

電腦上沒有事件記錄檔服務。

範例

下列範例會列舉本機計算機上定義的事件記錄檔,並顯示每個事件記錄檔的組態詳細數據。

void DisplayEventLogProperties()
{
   
   // Iterate through the current set of event log files,
   // displaying the property settings for each file.
   array<EventLog^>^eventLogs = EventLog::GetEventLogs();
   System::Collections::IEnumerator^ myEnum = eventLogs->GetEnumerator();
   while ( myEnum->MoveNext() )
   {
      EventLog^ e = safe_cast<EventLog^>(myEnum->Current);
      Int64 sizeKB = 0;
      Console::WriteLine();
      Console::WriteLine( "{0}:", e->LogDisplayName );
      Console::WriteLine( "  Log name = \t\t {0}", e->Log );
      Console::WriteLine( "  Number of event log entries = {0}", e->Entries->Count );
      
      // Determine if there is a file for this event log.
      RegistryKey ^ regEventLog = Registry::LocalMachine->OpenSubKey( String::Format( "System\\CurrentControlSet\\Services\\EventLog\\{0}", e->Log ) );
      if ( regEventLog )
      {
         Object^ temp = regEventLog->GetValue( "File" );
         if ( temp != nullptr )
         {
            Console::WriteLine( "  Log file path = \t {0}", temp );
            FileInfo^ file = gcnew FileInfo( temp->ToString() );
            
            // Get the current size of the event log file.
            if ( file->Exists )
            {
               sizeKB = file->Length / 1024;
               if ( (file->Length % 1024) != 0 )
               {
                  sizeKB++;
               }
               Console::WriteLine( "  Current size = \t {0} kilobytes", sizeKB );
            }
         }
         else
         {
            Console::WriteLine( "  Log file path = \t <not set>" );
         }
      }
      
      // Display the maximum size and overflow settings.
      sizeKB = e->MaximumKilobytes;
      Console::WriteLine( "  Maximum size = \t {0} kilobytes", sizeKB );
      Console::WriteLine( "  Overflow setting = \t {0}", e->OverflowAction );
      switch ( e->OverflowAction )
      {
         case OverflowAction::OverwriteOlder:
            Console::WriteLine( "\t Entries are retained a minimum of {0} days.", e->MinimumRetentionDays );
            break;

         case OverflowAction::DoNotOverwrite:
            Console::WriteLine( "\t Older entries are not overwritten." );
            break;

         case OverflowAction::OverwriteAsNeeded:
            Console::WriteLine( "\t If number of entries equals max size limit, a new event log entry overwrites the oldest entry." );
            break;

         default:
            break;
      }
   }
}
static void DisplayEventLogProperties()
{
    // Iterate through the current set of event log files,
    // displaying the property settings for each file.

    EventLog[] eventLogs = EventLog.GetEventLogs();
    foreach (EventLog e in eventLogs)
    {
        Int64 sizeKB = 0;

        Console.WriteLine();
        Console.WriteLine("{0}:", e.LogDisplayName);
        Console.WriteLine("  Log name = \t\t {0}", e.Log);

        Console.WriteLine("  Number of event log entries = {0}", e.Entries.Count.ToString());

        // Determine if there is an event log file for this event log.
        RegistryKey regEventLog = Registry.LocalMachine.OpenSubKey("System\\CurrentControlSet\\Services\\EventLog\\" + e.Log);
        if (regEventLog != null)
        {
            Object temp = regEventLog.GetValue("File");
            if (temp != null)
            {
                Console.WriteLine("  Log file path = \t {0}", temp.ToString());
                FileInfo file = new FileInfo(temp.ToString());

                // Get the current size of the event log file.
                if (file.Exists)
                {
                    sizeKB = file.Length / 1024;
                    if ((file.Length % 1024) != 0)
                    {
                        sizeKB++;
                    }
                    Console.WriteLine("  Current size = \t {0} kilobytes", sizeKB.ToString());
                }
            }
            else
            {
                Console.WriteLine("  Log file path = \t <not set>");
            }
        }

        // Display the maximum size and overflow settings.

        sizeKB = e.MaximumKilobytes;
        Console.WriteLine("  Maximum size = \t {0} kilobytes", sizeKB.ToString());
        Console.WriteLine("  Overflow setting = \t {0}", e.OverflowAction.ToString());

        switch (e.OverflowAction)
        {
            case OverflowAction.OverwriteOlder:
                Console.WriteLine("\t Entries are retained a minimum of {0} days.",
                    e.MinimumRetentionDays);
                break;
            case OverflowAction.DoNotOverwrite:
                Console.WriteLine("\t Older entries are not overwritten.");
                break;
            case OverflowAction.OverwriteAsNeeded:
                Console.WriteLine("\t If number of entries equals max size limit, a new event log entry overwrites the oldest entry.");
                break;
            default:
                break;
        }
    }
}
Shared Sub DisplayEventLogProperties()

   ' Iterate through the current set of event log files,
   ' displaying the property settings for each file.
   Dim eventLogs As EventLog() = EventLog.GetEventLogs()
   
   Dim e As EventLog
   For Each e In  eventLogs
      Dim sizeKB As Int64 = 0
      
      Console.WriteLine()
      Console.WriteLine("{0}:", e.LogDisplayName)
      Console.WriteLine("  Log name = " + ControlChars.Tab _
                          + ControlChars.Tab + " {0}", e.Log)

      Console.WriteLine("  Number of event log entries = {0}", e.Entries.Count.ToString())
      
      ' Determine if there is an event log file for this event log.
      Dim regEventLog As RegistryKey
      regEventLog = Registry.LocalMachine.OpenSubKey( _
             ("System\CurrentControlSet\Services\EventLog\" + e.Log))

      If Not (regEventLog Is Nothing) Then

         Dim temp As Object = regEventLog.GetValue("File")
         If Not (temp Is Nothing) Then

            Console.WriteLine("  Log file path = " + ControlChars.Tab _
                                  + " {0}", temp.ToString())
            Dim file As New FileInfo(temp.ToString())
            
            ' Get the current size of the event log file.
            If file.Exists Then
               sizeKB = file.Length / 1024
               If file.Length Mod 1024 <> 0 Then
                  sizeKB += 1
               End If
               Console.WriteLine("  Current size = " + ControlChars.Tab _
                          + " {0} kilobytes", sizeKB.ToString())
            End If
         Else
            Console.WriteLine("  Log file path = " + ControlChars.Tab _
                             + " <not set>")
         End If
      End If
      
      ' Display the maximum size and overflow settings.
      sizeKB = e.MaximumKilobytes
      Console.WriteLine("  Maximum size = " + ControlChars.Tab _
                         + " {0} kilobytes", sizeKB.ToString())
      Console.WriteLine("  Overflow setting = " + ControlChars.Tab _
                         + " {0}", e.OverflowAction.ToString())
      
      Select Case e.OverflowAction
         Case OverflowAction.OverwriteOlder
            Console.WriteLine(ControlChars.Tab + _
                 " Entries are retained a minimum of {0} days.", _
                 e.MinimumRetentionDays)
         Case OverflowAction.DoNotOverwrite
            Console.WriteLine(ControlChars.Tab + _
                 " Older entries are not overwritten.")
         Case OverflowAction.OverwriteAsNeeded
            Console.WriteLine(ControlChars.Tab + _
                 " If number of entries equals max size limit, a new event log entry overwrites the oldest entry.")
         Case Else
      End Select

   Next e

End Sub

備註

對象的陣列 EventLog 是進行呼叫 GetEventLogs 時,本機計算機上所有事件記錄檔的快照集。 這不是動態集合,因此不會即時反映刪除或建立記錄。 在讀取或寫入陣列之前,您應該先確認陣列中的記錄檔存在。 數位通常至少包含三個記錄:應用程式、系統和安全性。 如果您在本機計算機上建立自定義記錄,它們也會出現在數位中。

若要擷取事件記錄檔清單,您必須具有適當的登錄許可權。 這些許可權與呼叫 ExistsSourceExists所需的許可權相同。

另請參閱

適用於