EventSourceCreationData(String, String) 构造函数

public:
 EventSourceCreationData(System::String ^ source, System::String ^ logName);

public EventSourceCreationData(string? source, string logName);

public EventSourceCreationData(string source, string logName);

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

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

参数

示例

下面的代码示例确定是否在本地计算机上注册了命名 SampleApplicationSource 的事件源。 如果事件源不存在，该示例将设置源的消息资源文件并创建新的事件源。 最后，代码示例使用 中的 DisplayNameMsgId 资源标识符值和资源 messageFile文件路径设置事件日志的本地化显示名称。

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);
    }
}

Public Shared Sub CreateEventSourceSample1(ByVal messageFile As String)

    Dim myLogName As String
    Dim sourceName As String = "SampleApplicationSource"

    ' Create the event source if it does not exist.
    If Not EventLog.SourceExists(sourceName)
    
        ' Create a new event source for the custom event log
        ' named "myNewLog."  

        myLogName = "myNewLog"
        Dim mySourceData As EventSourceCreationData = 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 Not 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 parameters strings.

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

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

        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,".")
    End If

    ' 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.
    Dim myEventLog As EventLog = New EventLog(myLogName, ".", sourceName)
    
    If messageFile.Length > 0
        myEventLog.RegisterDisplayName(messageFile, DisplayNameMsgId)
    End If
End Sub

该代码示例使用以下消息文本文件，该文件内置于资源库 EventLogMsgs.dll中。 消息文本文件是创建消息资源文件的源。 消息文本文件定义类别、事件消息和参数插入字符串的资源标识符和文本。

; // 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
.

注解

若要将条目写入事件日志，必须先为事件日志创建事件源。 若要注册新源，请初始化 EventSourceCreationData 实例，配置应用程序的实例属性，并调用 EventLog.CreateEventSource(EventSourceCreationData) 该方法。 注册源后，可以使用或WriteEvent方法从源WriteEntry写入条目。

可以使用事件类别和消息字符串的本地化资源注册事件源。 应用程序可以使用资源标识符编写事件日志条目，而不是指定实际字符串。 事件查看器使用资源标识符根据当前语言设置查找和显示本地化资源文件中的相应字符串。 可以为事件类别、消息和参数插入字符串注册单独的文件，也可以为所有三种类型的字符串注册相同的资源文件。 使用 、CategoryCountCategoryResourceFileMessageResourceFile和ParameterResourceFile属性配置源以将本地化条目写入事件日志。 如果应用程序将字符串值直接写入事件日志，则无需设置这些属性。

必须配置源以编写本地化条目或编写直接字符串。 如果应用程序同时使用资源标识符和字符串值写入条目，则必须注册两个单独的源。 例如，使用资源文件配置一个源，然后使用该方法中的 WriteEvent 源将资源标识符的条目写入事件日志。 然后创建不带资源文件的其他源，并在方法中使用 WriteEntry 该源将字符串直接写入事件日志。

下表显示了一个 EventSourceCreationData初始属性值。

另请参阅

• Source
• LogName