初学asp.net应该记住的东西

/// </summary>

public static void WriteTrace(String message)

{

WriteLog(TraceLevel.Verbose, message);

}

/// <summary>

/// 格式化记录到事件日志的文本信息格式

/// <param name="ex">需要格式化的异常对象</param>

/// <param name="catchInfo">异常信息标题字符串.</param>

/// <retvalue>

/// <para>格式后的异常信息字符串，包括异常内容和跟踪堆栈.</para>

/// </retvalue>

/// </summary>

public static String FormatException(Exception ex, String catchInfo)

{

StringBuilder strBuilder = new StringBuilder();

if (catchInfo != String.Empty)

{

strBuilder.Append(catchInfo).Append("\r\n");

}

strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);

return strBuilder.ToString();

}

/// <summary>

/// 实际事件日志写入方法

/// <param name="level">要记录信息的级别（error,warning,info,trace).</param>

/// <param name="messageText">要记录的文本.</param>

/// </summary>

private static void WriteLog(TraceLevel level, String messageText)

{

try

{

EventLogEntryType LogEntryType;

switch (level)

{

case TraceLevel.Error:

LogEntryType = EventLogEntryType.Error;

break;

case TraceLevel.Warning:

LogEntryType = EventLogEntryType.Warning;

break;

case TraceLevel.Info:

LogEntryType = EventLogEntryType.Information;