EventLog Konstruktorer

Källa:

EventLog.cs

Källa:

EventLog.cs

Källa:

EventLog.cs

Källa:

EventLog.cs

Källa:

EventLog.cs

Källa:

EventLog.cs

Källa:

EventLog.cs

Källa:

EventLog.cs

public:
 EventLog();

public EventLog();

Public Sub New ()

Exempel

I följande exempel skapas källan MySource om den inte redan finns och skriver en post till händelseloggen MyNewLog.

using System;
using System.Diagnostics;
using System.Threading;

class MySample{

    public static void Main(){

        // Create the source, if it does not already exist.
        if(!EventLog.SourceExists("MySource"))
        {
             //An event log source should not be created and immediately used.
             //There is a latency time to enable the source, it should be created
             //prior to executing the application that uses the source.
             //Execute this sample a second time to use the new source.
            EventLog.CreateEventSource("MySource", "MyNewLog");
            Console.WriteLine("CreatedEventSource");
            Console.WriteLine("Exiting, execute the application a second time to use the source.");
            // The source is created.  Exit the application to allow it to be registered.
            return;
        }

        // Create an EventLog instance and assign its source.
        EventLog myLog = new EventLog();
        myLog.Source = "MySource";

        // Write an informational entry to the event log.
        myLog.WriteEntry("Writing to event log.");
    }
}

Option Explicit
Option Strict

Imports System.Diagnostics
Imports System.Threading

Class MySample
    Public Shared Sub Main()
        
        If Not EventLog.SourceExists("MySource") Then
            ' Create the source, if it does not already exist.
            ' An event log source should not be created and immediately used.
            ' There is a latency time to enable the source, it should be created
            ' prior to executing the application that uses the source.
            ' Execute this sample a second time to use the new source.
            EventLog.CreateEventSource("MySource", "MyNewLog")
            Console.WriteLine("CreatingEventSource")
            'The source is created.  Exit the application to allow it to be registered.
            Return
        End If
        
        ' Create an EventLog instance and assign its source.
        Dim myLog As New EventLog()
        myLog.Source = "MySource"
        
        ' Write an informational entry to the event log.    
        myLog.WriteEntry("Writing to event log.")
    End Sub
End Class

Kommentarer

Innan du anropar WriteEntryanger du instansens SourceEventLog egenskap. Om du bara läser Entries från loggen kan du också bara Log ange egenskaperna och MachineName .

I följande tabell visas inledande egenskapsvärden för en instans av EventLog.

Se även

• Source
• Log
• MachineName
• Entries
• WriteEntry
• WriteEvent
• EventLogEntry

Källa:

EventLog.cs

Källa:

EventLog.cs

Källa:

EventLog.cs

Källa:

EventLog.cs

Källa:

EventLog.cs

Källa:

EventLog.cs

Källa:

EventLog.cs

Källa:

EventLog.cs

public:
 EventLog(System::String ^ logName);

public EventLog(string logName);

new System.Diagnostics.EventLog : string -> System.Diagnostics.EventLog

Public Sub New (logName As String)

Parametrar

Undantag

Exempel

I följande exempel läss poster i händelseloggen"myNewLog" på den lokala datorn.

using System;
using System.Diagnostics;
using System.Threading;

class MySample
{
    public static void Main()
    {
        // Create the source, if it does not already exist.
        if (!EventLog.SourceExists("MySource"))
        {
            //An event log source should not be created and immediately used.
            //There is a latency time to enable the source, it should be created
            //prior to executing the application that uses the source.
            //Execute this sample a second time to use the new source.
            EventLog.CreateEventSource("MySource", "MyNewLog");
            Console.WriteLine("CreatedEventSource");
            Console.WriteLine("Exiting, execute the application a second time to use the source.");
            // The source is created.  Exit the application to allow it to be registered.
            return;
        }

        // Create an EventLog instance and assign its log name.
        EventLog myLog = new EventLog("myNewLog");

        // Read the event log entries.
        foreach (EventLogEntry entry in myLog.Entries)
        {
            Console.WriteLine("\tEntry: " + entry.Message);
        }
    }
}

Option Explicit
Option Strict

Imports System.Diagnostics
Imports System.Threading

Class MySample
    Public Shared Sub Main()
        
        If Not EventLog.SourceExists("MySource") Then
            ' Create the source, if it does not already exist.
            ' An event log source should not be created and immediately used.
            ' There is a latency time to enable the source, it should be created
            ' prior to executing the application that uses the source.
            ' Execute this sample a second time to use the new source.
            EventLog.CreateEventSource("MySource", "MyNewLog")
            Console.WriteLine("CreatingEventSource")
            'The source is created.  Exit the application to allow it to be registered.
            Return
        End If

        Dim myLog As New EventLog("myNewLog")
        
        ' Read the event log entries.
        Dim entry As EventLogEntry
        For Each entry In  myLog.Entries
            Console.WriteLine((ControlChars.Tab & "Entry: " & entry.Message))
        Next entry
    End Sub
End Class

Kommentarer

Den här överlagringen Log anger egenskapen till parametern logName . Innan du anropar WriteEntryanger du instansens SourceEventLog egenskap. Om du bara läser Entries från loggen kan du också bara Log ange egenskaperna och MachineName .

Om källan som du anger i Source egenskapen är unik från andra källor på datorn, skapar ett efterföljande anrop till WriteEntry en logg med det angivna namnet, om den inte redan finns.

I följande tabell visas inledande egenskapsvärden för en instans av EventLog.

Se även

• Source
• Log
• MachineName
• Entries
• WriteEntry
• WriteEvent
• EventLogEntry

Källa:

EventLog.cs

Källa:

EventLog.cs

Källa:

EventLog.cs

Källa:

EventLog.cs

Källa:

EventLog.cs

Källa:

EventLog.cs

Källa:

EventLog.cs

Källa:

EventLog.cs

public:
 EventLog(System::String ^ logName, System::String ^ machineName);

public EventLog(string logName, string machineName);

new System.Diagnostics.EventLog : string * string -> System.Diagnostics.EventLog

Public Sub New (logName As String, machineName As String)

Parametrar

Undantag

Exempel

I följande exempel läss poster i händelseloggen"myNewLog" på datorn "myServer".

using System;
using System.Diagnostics;
using System.Threading;

class MySample1
{
    public static void Main()
    {
        // Create the source, if it does not already exist.
        if (!EventLog.SourceExists("MySource"))
        {
            //An event log source should not be created and immediately used.
            //There is a latency time to enable the source, it should be created
            //prior to executing the application that uses the source.
            //Execute this sample a second time to use the new source.
            EventLog.CreateEventSource("MySource", "MyNewLog", "myServer");
            Console.WriteLine("CreatedEventSource");
            Console.WriteLine("Exiting, execute the application a second time to use the source.");
            // The source is created.  Exit the application to allow it to be registered.
            return;
        }
        // Create an EventLog instance and assign its log name.
        EventLog myLog = new EventLog("myNewLog", "myServer");

        // Read the event log entries.
        foreach (EventLogEntry entry in myLog.Entries)
        {
            Console.WriteLine("\tEntry: " + entry.Message);
        }
    }
}

Option Explicit
Option Strict

Imports System.Diagnostics
Imports System.Threading

Class MySample
    Public Shared Sub Main()
        If Not EventLog.SourceExists("MySource") Then
            ' Create the source, if it does not already exist.
            ' An event log source should not be created and immediately used.
            ' There is a latency time to enable the source, it should be created
            ' prior to executing the application that uses the source.
            ' Execute this sample a second time to use the new source.
            EventLog.CreateEventSource("MySource", "MyNewLog", "myServer")
            Console.WriteLine("CreatingEventSource")
            'The source is created.  Exit the application to allow it to be registered.
            Return
        End If

        ' Create an EventLog instance and assign its log name.
        Dim myLog As New EventLog("myNewLog", "myServer")
        
        ' Read the event log entries.
        Dim entry As EventLogEntry
        For Each entry In  myLog.Entries
            Console.WriteLine((ControlChars.Tab & "Entry: " & entry.Message))
        Next entry
    End Sub
End Class

Kommentarer

Den här överlagringen Log anger egenskapen till parametern logName och egenskapen MachineName till parametern machineName . Innan du anropar WriteEntryanger du Source egenskapen för EventLog. Om du bara läser Entries från loggen kan du också bara Log ange egenskaperna och MachineName .

I följande tabell visas inledande egenskapsvärden för en instans av EventLog.

Se även

• Source
• Log
• MachineName
• Entries
• WriteEntry
• WriteEvent
• EventLogEntry

Källa:

EventLog.cs

Källa:

EventLog.cs

Källa:

EventLog.cs

Källa:

EventLog.cs

Källa:

EventLog.cs

Källa:

EventLog.cs

Källa:

EventLog.cs

Källa:

EventLog.cs

public:
 EventLog(System::String ^ logName, System::String ^ machineName, System::String ^ source);

public EventLog(string logName, string machineName, string source);

new System.Diagnostics.EventLog : string * string * string -> System.Diagnostics.EventLog

Public Sub New (logName As String, machineName As String, source As String)

Parametrar

Undantag

Exempel

I följande exempel skrivs en post till en händelselogg, "MyNewLog", på den lokala datorn med källan "MySource".

using System;
using System.Diagnostics;
using System.Threading;

class MySample2
{
    public static void Main()
    {
        // Create the source, if it does not already exist.
        if (!EventLog.SourceExists("MySource"))
        {
            //An event log source should not be created and immediately used.
            //There is a latency time to enable the source, it should be created
            //prior to executing the application that uses the source.
            //Execute this sample a second time to use the new source.
            EventLog.CreateEventSource("MySource", "MyNewLog");
            Console.WriteLine("CreatedEventSource");
            Console.WriteLine("Exiting, execute the application a second time to use the source.");
            // The source is created.  Exit the application to allow it to be registered.
            return;
        }
        // Create an EventLog instance and assign its source.
        EventLog myLog = new EventLog("myNewLog", ".", "MySource");

        // Write an entry to the log.
        myLog.WriteEntry("Writing to event log on " + myLog.MachineName);
    }
}

Option Strict
Option Explicit

Imports System.Diagnostics
Imports System.Threading

Class MySample
    Public Shared Sub Main()
        If Not EventLog.SourceExists("MySource") Then
            ' Create the source, if it does not already exist.
            ' An event log source should not be created and immediately used.
            ' There is a latency time to enable the source, it should be created
            ' prior to executing the application that uses the source.
            ' Execute this sample a second time to use the new source.
            EventLog.CreateEventSource("MySource", "MyNewLog")
            Console.WriteLine("CreatingEventSource")
            'The source is created.  Exit the application to allow it to be registered.
            Return
        End If
        ' Create an EventLog instance and assign its source.
        Dim myLog As New EventLog("myNewLog", ".", "MySource")
        
        ' Write an entry to the log.        
        myLog.WriteEntry(("Writing to event log on " & myLog.MachineName))
    End Sub
End Class

Kommentarer

Den här konstruktorn anger Log egenskapen till parametern logName , MachineName egenskapen till parametern machineName och Source egenskapen till parametern source . Egenskapen Source krävs när du skriver till en händelselogg. Men om du bara läser från en händelselogg krävs endast Log egenskaperna och MachineName (så länge händelseloggen på servern redan har en källa associerad med den). Om du bara läser från händelseloggen kan en annan överbelastning av konstruktorn räcka.

I följande tabell visas inledande egenskapsvärden för en instans av EventLog.

Se även

• Source
• Log
• MachineName
• Entries
• WriteEntry
• WriteEvent
• EventLogEntry