EventLogInstaller.CategoryCount Proprietà

  • Riferimento

Definizione

Spazio dei nomi:
System.Diagnostics
Assembly:
System.Configuration.Install.dll

Ottiene o imposta il numero di categorie nel file di risorse di categoria.

public:
 property int CategoryCount { int get(); void set(int value); };
[System.Runtime.InteropServices.ComVisible(false)]
public int CategoryCount { get; set; }
[<System.Runtime.InteropServices.ComVisible(false)>]
member this.CategoryCount : int with get, set
Public Property CategoryCount As Integer

Valore della proprietà

Int32

Numero di categorie nel file di risorse di categoria. Il valore predefinito è zero.

Attributi
ComVisibleAttribute

Esempio

Nell'esempio di codice seguente vengono impostate le proprietà di installazione per una nuova origine evento. L'esempio di codice imposta il nome dell'origine evento, il nome del registro eventi e il file di risorse per il testo dell'evento localizzato.

#using <System.dll>
#using <System.Configuration.Install.dll>

using namespace System;
using namespace System::Configuration::Install;
using namespace System::Diagnostics;
using namespace System::ComponentModel;

[RunInstaller(true)]
public ref class SampleEventLogInstaller : public Installer
{
private:
   EventLogInstaller^ myEventLogInstaller;

public:
   SampleEventLogInstaller()
   {
      
      // Create an instance of an EventLogInstaller.
      myEventLogInstaller = gcnew EventLogInstaller;
      
      // Set the source name of the event log.
      myEventLogInstaller->Source = "ApplicationEventSource";
      
      // Set the event log into which the source writes entries.
      //myEventLogInstaller.Log = "MyCustomLog";
      myEventLogInstaller->Log = "myNewLog";
      
      // Set the resource file for the event log.
      // The message strings are defined in EventLogMsgs.mc; the message 
      // identifiers used in the application must match those defined in the
      // corresponding message resource file. The messages must be built
      // into a Win32 resource library and copied to the target path on the
      // system.  
      myEventLogInstaller->CategoryResourceFile =
             Environment::SystemDirectory + "\\eventlogmsgs.dll";
      myEventLogInstaller->CategoryCount = 3;
      myEventLogInstaller->MessageResourceFile =
             Environment::SystemDirectory + "\\eventlogmsgs.dll";
      myEventLogInstaller->ParameterResourceFile =
             Environment::SystemDirectory + "\\eventlogmsgs.dll";

      // Add myEventLogInstaller to the installer collection.
      Installers->Add( myEventLogInstaller );
   }

};

int main()
{
   Console::WriteLine( "Usage: InstallUtil.exe [<install>.exe | <install>.dll]" );
}

using System;
using System.Configuration.Install;
using System.Diagnostics;
using System.ComponentModel;

[RunInstaller(true)]
public class SampleEventLogInstaller : Installer
{
    private EventLogInstaller myEventLogInstaller;

    public SampleEventLogInstaller()
    {
        // Create an instance of an EventLogInstaller.
        myEventLogInstaller = new EventLogInstaller();

        // Set the source name of the event log.
        myEventLogInstaller.Source = "ApplicationEventSource";

        // Set the event log into which the source writes entries.
        //myEventLogInstaller.Log = "MyCustomLog";
        myEventLogInstaller.Log = "myNewLog";

        // Set the resource file for the event log.
        // The message strings are defined in EventLogMsgs.mc; the message
        // identifiers used in the application must match those defined in the
        // corresponding message resource file. The messages must be built
        // into a Win32 resource library and copied to the target path on the
        // system.

        myEventLogInstaller.CategoryResourceFile =
             Environment.SystemDirectory + "\\eventlogmsgs.dll";
        myEventLogInstaller.CategoryCount = 3;
        myEventLogInstaller.MessageResourceFile =
             Environment.SystemDirectory + "\\eventlogmsgs.dll";
        myEventLogInstaller.ParameterResourceFile =
             Environment.SystemDirectory + "\\eventlogmsgs.dll";

        // Add myEventLogInstaller to the installer collection.
        Installers.Add(myEventLogInstaller);
    }

    public static void Main()
    {
        Console.WriteLine("Usage: InstallUtil.exe [<install>.exe | <install>.dll]");
    }
}

   Imports System.Configuration.Install
Imports System.Diagnostics
Imports System.ComponentModel

<RunInstaller(True)>  _
Public Class SampleEventLogInstaller
   Inherits Installer

   Private myEventLogInstaller As EventLogInstaller

   Public Sub New()

      ' Create an instance of an EventLogInstaller.
      myEventLogInstaller = New EventLogInstaller()

      ' Set the source name of the event log.
      myEventLogInstaller.Source = "ApplicationEventSource"

      ' Set the event log into which the source writes entries.
      myEventLogInstaller.Log = "MyCustomLog"

      ' Set the resource file for the event log.
      ' The message strings are defined in EventLogMsgs.mc; the message
      ' identifiers used in the application must match those defined in the
      ' corresponding message resource file. The messages must be built
      ' into a Win32 resource library and copied to the target path on the
      ' system.

      myEventLogInstaller.CategoryResourceFile = _
          Environment.SystemDirectory + "\eventlogmsgs.dll"
      myEventLogInstaller.CategoryCount = 3
      myEventLogInstaller.MessageResourceFile = _
          Environment.SystemDirectory + "\eventlogmsgs.dll"
      myEventLogInstaller.ParameterResourceFile = _
          Environment.SystemDirectory + "\eventlogmsgs.dll"

      ' Add myEventLogInstaller to the installer collection.
      Installers.Add(myEventLogInstaller)

   End Sub

   Public Shared Sub Main()
     Console.WriteLine("Usage: InstallUtil.exe [<install>.exe | <install>.dll]")
   End Sub
End Class

L'esempio di codice usa il file di testo del messaggio seguente, integrato nella libreria di risorse EventLogMsgs.dll. Un file di testo del messaggio è l'origine da cui viene creato il file di risorse del messaggio. Il file di testo del messaggio definisce gli identificatori di risorsa e il testo per la categoria, il messaggio di evento e le stringhe di inserimento dei parametri.

; // EventLogMsgs.mc  
; // ********************************************************  

; // Use the following commands to build this file:  

; //   mc -s EventLogMsgs.mc  
; //   rc EventLogMsgs.rc  
; //   link /DLL /SUBSYSTEM:WINDOWS /NOENTRY /MACHINE:x86 EventLogMsgs.Res   
; // ********************************************************  

; // - Event categories -  
; // Categories must be numbered consecutively starting at 1.  
; // ********************************************************  

MessageId=0x1  
Severity=Success  
SymbolicName=INSTALL_CATEGORY  
Language=English  
Installation  
.  

MessageId=0x2  
Severity=Success  
SymbolicName=QUERY_CATEGORY  
Language=English  
Database Query  
.  

MessageId=0x3  
Severity=Success  
SymbolicName=REFRESH_CATEGORY  
Language=English  
Data Refresh  
.  

; // - Event messages -  
; // *********************************  

MessageId = 1000  
Severity = Success  
Facility = Application  
SymbolicName = AUDIT_SUCCESS_MESSAGE_ID_1000  
Language=English  
My application message text, in English, for message id 1000, called from %1.  
.  

MessageId = 1001  
Severity = Warning  
Facility = Application  
SymbolicName = AUDIT_FAILED_MESSAGE_ID_1001  
Language=English  
My application message text, in English, for message id 1001, called from %1.  
.  

MessageId = 1002  
Severity = Success  
Facility = Application  
SymbolicName = GENERIC_INFO_MESSAGE_ID_1002  
Language=English  
My generic information message in English, for message id 1002.  
.  

MessageId = 1003  
Severity = Warning  
Facility = Application  
SymbolicName = GENERIC_WARNING_MESSAGE_ID_1003  
Language=English  
My generic warning message in English, for message id 1003, called from %1.  
.  

MessageId = 1004  
Severity = Success  
Facility = Application  
SymbolicName = UPDATE_CYCLE_COMPLETE_MESSAGE_ID_1004  
Language=English  
The update cycle is complete for %%5002.  
.  

MessageId = 1005  
Severity = Warning  
Facility = Application  
SymbolicName = SERVER_CONNECTION_DOWN_MESSAGE_ID_1005  
Language=English  
The refresh operation did not complete because the connection to server %1 could not be established.  
.  

; // - Event log display name -  
; // ********************************************************  

MessageId = 5001  
Severity = Success  
Facility = Application  
SymbolicName = EVENT_LOG_DISPLAY_NAME_MSGID  
Language=English  
Sample Event Log  
.  

; // - Event message parameters -  
; //   Language independent insertion strings  
; // ********************************************************  

MessageId = 5002  
Severity = Success  
Facility = Application  
SymbolicName = EVENT_LOG_SERVICE_NAME_MSGID  
Language=English  
SVC_UPDATE.EXE  
.

Commenti

Usare le CategoryCount proprietà e CategoryResourceFile per scrivere eventi con stringhe di categoria localizzate. Il Visualizzatore eventi visualizza la categoria per una voce di evento, se si specifica una categoria quando si scrive l'evento. Le categorie di log eventi sono stringhe definite dall'applicazione che consentono di filtrare gli eventi o fornire informazioni su un evento. Ad esempio, l'applicazione può definire categorie separate per componenti diversi o operazioni diverse.

Le categorie di eventi sono facoltative; se l'applicazione non usa categorie, non impostare le CategoryCount proprietà e CategoryResourceFile .

Per informazioni dettagliate sulla definizione di messaggi di evento e sulla creazione di file di risorse evento, vedere l'articolo Del compilatore di messaggi nella documentazione di Platform SDK.

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