Custom Method for Error Log.
Step 1. Create class with Name 'AppExceptionManager' in class library.
using System;
using System.Configuration;
using System.IO;
using System.Text;
using System.Web;
namespace DotNetByPriyanshu
{
public class AppExceptionManager
{
/// <summary>
/// Log Error Description to log file.
/// </summary>
/// <param name="errorDescription"></param>
public static void LogError(System.Exception errorDescription)
{
string dateTime = string.Format("{0:MM-dd-yyyy}", DateTime.Now);
string path = HttpContext.Current.Server.MapPath("~/ErrorLog/");
string ExistingFilePath = path + "LogError" + dateTime + ".txt";
if (File.Exists(ExistingFilePath.Trim()))
{
AppendExitingLogErrorFile(errorDescription, dateTime, ExistingFilePath.Trim());
}
else
{
WriteLogErrorFile(errorDescription, dateTime);
}
}
/// <summary>
/// It returns Error line number where at which line number exception raised .
/// </summary>
/// <param name="ex"></param>
private static string GetErrorLine(System.Exception ex)
{
StringBuilder errorLineNumber = new StringBuilder();
try
{
if (ex != null)
{
if (ex.StackTrace.LastIndexOf(@"\") != -1)
{
string stackSubString = ex.StackTrace.Substring(ex.StackTrace.LastIndexOf("line ") + 5);
if (stackSubString.IndexOf(' ') != -1)
{
errorLineNumber.Append(stackSubString.Remove(stackSubString.IndexOf(' ')));
}
else
{
errorLineNumber.Append(stackSubString);
}
}
}
}
catch (System.Exception)
{
}
return errorLineNumber.ToString();
}
/// <summary>
/// Method for Append Exiting Log Error File
/// </summary>
/// <param name="errorDescription"></param>
/// <param name="dateTime"></param>
/// <param name="ExistingFilePath"></param>
private static void AppendExitingLogErrorFile(System.Exception errorDescription, string dateTime, string ExistingFilePath)
{
myStream = new FileStream(ExistingFilePath, FileMode.Append);
StreamWriter myWriter = new StreamWriter(myStream);
if (myWriter != null)
{
myWriter.WriteLine("---------------------------------------------------------");
myWriter.WriteLine("--------------------------Start--------------------------");
myWriter.WriteLine("Machine Name :" + Environment.MachineName);
myWriter.WriteLine("Windows user :" + Environment.UserDomainName + "\\" + Environment.UserName);
myWriter.WriteLine("Time stamp : " + System.DateTime.Now.ToString());
myWriter.WriteLine("Inner Exception : " + errorDescription.InnerException);
myWriter.WriteLine("Message : " + errorDescription.Message);
myWriter.WriteLine("Exception Type : "+ errorDescription.GetType().ToString());
myWriter.WriteLine("Error Line : " + GetErrorLine(errorDescription));
myWriter.WriteLine("Stack trace : " + errorDescription.StackTrace);
myWriter.WriteLine("OS Name : "+ Environment.OSVersion.ToString());
myWriter.WriteLine("HelpLink : " + errorDescription.HelpLink);
myWriter.WriteLine("-------------------------- End --------------------------");
myWriter.Close();
myStream.Close();
}
}
}
}
/// <summary>
/// Method for Write Log Error File
/// </summary>
/// <param name="errorDescription"></param>
/// <param name="dateTime"></param>
private static void WriteLogErrorFile(System.Exception errorDescription, string dateTime)
{
string strFilePath = HttpContext.Current.Server.MapPath("~/ErrorLog/");
using (StreamWriter myWriter = new StreamWriter(Path.Combine(strFilePath, "LogError" + dateTime + ".txt")))
{
if (myWriter != null)
{
myWriter.WriteLine("---------------------------------------------------------");
myWriter.WriteLine("--------------------------Start--------------------------");
myWriter.WriteLine("Machine Name :" + Environment.MachineName);
myWriter.WriteLine("Windows user :" + Environment.UserDomainName + "\\" + Environment.UserName);
myWriter.WriteLine("Time stamp : " + System.DateTime.Now.ToString());
myWriter.WriteLine("Inner Exception : " + errorDescription.InnerException);
myWriter.WriteLine("Message : " + errorDescription.Message);
myWriter.WriteLine("Exception Type : " + errorDescription.GetType().ToString());
myWriter.WriteLine("Error Line : " + GetErrorLine(errorDescription));
myWriter.WriteLine("Stack trace : " + errorDescription.StackTrace);
myWriter.WriteLine("OS Name : " + Environment.OSVersion.ToString());
myWriter.WriteLine("HelpLink : " + errorDescription.HelpLink);
myWriter.WriteLine("-------------------------- End --------------------------");
myWriter.Close();
}
}
}
