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EventLog.RegisterDisplayName Method

Updated: July 2009

Specifies the localized name of the event log, which is displayed in the server Event Viewer.

Namespace:  System.Diagnostics
Assembly:  System (in System.dll)

[ComVisibleAttribute(false)]
public void RegisterDisplayName(
	string resourceFile,
	long resourceId
)

Parameters

resourceFile
Type: System.String

The fully specified path to a localized resource file.

resourceId
Type: System.Int64

The resource identifier that indexes a localized string within the resource file.

ExceptionCondition
InvalidOperationException

The Log value is not a valid log name.

- or -

The registry key for the event log could not be opened on the target computer.

ArgumentNullException

resourceFile is null.

Use RegisterDisplayName to register and display a localized name in the Event Viewer for custom event logs.

The specified resource identifier must correspond to a localized string defined in the resource file. The Event Viewer displays the custom event log name using the localized string and the current culture settings. For example, you can define multiple event log names localized for different cultures in your resource file. The Event Viewer displays the localized string corresponding to the culture settings of the current user.

If the Event Viewer cannot load the localized string from the resource file, or if no display name was registered for the event log, then the Event Viewer displays the event log name defined in Log.

NoteNote:

You do not need to register a display name for the pre-defined event logs. The operating system registers the localized display names for the Application, System, and Security event logs.

The following example determines whether the event source named SampleApplicationSource is registered on the local computer. If the event source does not exist, the example sets the message resource file for the source and creates the new event source. Finally, the example sets the localized display name for the event log, using the resource identifier value in DisplayNameMsgId and the resource file path in messageFile.

static void CreateEventSourceSample1(string messageFile)
{
    string myLogName;
    string sourceName = "SampleApplicationSource";

    // Create the event source if it does not exist. 
    if(!EventLog.SourceExists(sourceName))
    {
        // Create a new event source for the custom event log 
        // named "myNewLog."  

        myLogName = "myNewLog";
        EventSourceCreationData mySourceData = new EventSourceCreationData(sourceName, myLogName);

        // Set the message resource file that the event source references. 
        // All event resource identifiers correspond to text in this file. 
        if (!System.IO.File.Exists(messageFile))
        {
            Console.WriteLine("Input message resource file does not exist - {0}", 
                messageFile);
            messageFile = "";
        }
        else 
        {
            // Set the specified file as the resource 
            // file for message text, category text, and  
            // message parameter strings.  

            mySourceData.MessageResourceFile = messageFile;
            mySourceData.CategoryResourceFile = messageFile;
            mySourceData.CategoryCount = CategoryCount;
            mySourceData.ParameterResourceFile = messageFile;

            Console.WriteLine("Event source message resource file set to {0}", 
                messageFile);
        }

        Console.WriteLine("Registering new source for event log.");
        EventLog.CreateEventSource(mySourceData);
    }
    else
    {
        // Get the event log corresponding to the existing source.
        myLogName = EventLog.LogNameFromSourceName(sourceName,".");
    }

    // Register the localized name of the event log. 
    // For example, the actual name of the event log is "myNewLog," but
    // the event log name displayed in the Event Viewer might be 
    // "Sample Application Log" or some other application-specific
    // text.
    EventLog myEventLog = new EventLog(myLogName, ".", sourceName);

    if (messageFile.Length > 0)
    {
        myEventLog.RegisterDisplayName(messageFile, DisplayNameMsgId);
    }
}

The example uses the following message text file, built into the resource library EventLogMsgs.dll. A message text file is the source from which the message resource file is created. The message text file defines the resource identifiers and text for the category, event message, and parameter insertion strings. Specifically, resource identifier 5001 is defined for the localized name of the event log.

; // 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
.

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0

Date

History

Reason

July 2009

Added exception.

Customer feedback.

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