EventLog.GetEventLogs 方法
定義
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。
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
EventLog[]
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。
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 Exists 和 SourceExists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
EventLog[]
表示本機電腦上記錄檔的類型 EventLog 的陣列。
例外狀況
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 Exists 和 SourceExists所需的許可權相同。
