/// <summary>
/// Returns the specified number of log entries of the specified category, starting with the latest one.
/// </summary>
/// <param name="category">The category of the log entries to be returned (-1 for "all").</param>
/// <param name="maxItems">The maximum number of items returned (-1 for "all").</param>
/// <param name="logfilePath">For environments where "AppDomain.CurrentDomain.BaseDirectory" doesn't work reliably, the path to the nLog.csv file can be explicitly specified here.</param>
/// <returns>A list of LogEntrys or null.</returns>
public static List <ErrorLogEntry> GetLogEntries(LogEntryCategories category, int maxItems, DateTime startTime, DateTime endTime, string searchText, string myLogfilePath = null)
{
Exception ex;
myLogfilePath = myLogfilePath ?? logFilePath;
DataTable dtEntries = CsvHandler.ReadCSVFile(myLogfilePath, out ex);
if (dtEntries == null || ex != null)
{
LastException = ex;
return(null);
}
bool displayAllCategories = (int)category == -1 ? true : false; //determine if all entries have to be displayed
List <ErrorLogEntry> entriesToReturn = new List <ErrorLogEntry>();
for (int i = dtEntries.Rows.Count - 1; i >= 0; i--) //iterate the table from bottom to top (new to old)
{
DateTime entryTime;
string categoryString = category.ToString();
if (displayAllCategories || dtEntries.Rows[i].ItemArray[2].ToString() == categoryString) //category matches the input parameter
{
if (!DateTime.TryParse(dtEntries.Rows[i].ItemArray[0].ToString(), out entryTime))
{
entryTime = endTime;
}
if (entryTime >= startTime && entryTime <= endTime)
{
if (string.IsNullOrEmpty(searchText) || (dtEntries.Rows[i].ItemArray[3].ToString().Contains(searchText) || dtEntries.Rows[i].ItemArray[4].ToString().Contains(searchText)))
{
ErrorLogEntry newLogEntry = new ErrorLogEntry()
{
Time = entryTime, LogLevel = dtEntries.Rows[i].ItemArray[1].ToString(), Category = dtEntries.Rows[i].ItemArray[2].ToString(), Message = dtEntries.Rows[i].ItemArray[3].ToString(), ExceptionText = dtEntries.Rows[i].ItemArray[4].ToString(), CodeLine = dtEntries.Rows[i].ItemArray[5].ToString()
};
entriesToReturn.Add(newLogEntry);
}
}
}
if (maxItems > 0 && entriesToReturn.Count == maxItems)
{
break;
}
}
return(entriesToReturn);
}
/// <summary>
/// Returns the specified number of log entries, starting with the latest one.
/// </summary>
/// <param name="maxItems">The maximum number of items returned (-1 for "all").</param>
/// <returns>A list of LogEntrys or null.</returns>
public static List <UserLogEntry> GetUserLogEntries(int maxItems, DateTime startTime, DateTime endTime)
{
Exception ex;
DataTable dtEntries = CsvHandler.ReadCSVFile(Environment.CurrentDirectory + @"\Logs\nUserLog.csv", out ex);
if (dtEntries == null || ex != null)
{
return(null);
}
List <UserLogEntry> entriesToReturn = new List <UserLogEntry>();
for (int i = dtEntries.Rows.Count - 1; i >= 0; i--) //iterate the table from bottom to top (new to old)
{
DateTime entryTime;
if (!DateTime.TryParse(dtEntries.Rows[i].ItemArray[0].ToString(), out entryTime))
{
entryTime = endTime;
}
if (entryTime >= startTime && entryTime <= endTime)
{
UserLogEntry newLogEntry = new UserLogEntry()
{
Time = entryTime, Category = dtEntries.Rows[i].ItemArray[1].ToString(), Message = dtEntries.Rows[i].ItemArray[2].ToString(), ExceptionText = dtEntries.Rows[i].ItemArray[3].ToString()
};
entriesToReturn.Add(newLogEntry);
}
if (maxItems > 0 && entriesToReturn.Count == maxItems)
{
break;
}
}
return(entriesToReturn);
}
