Log Error File C#
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here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn create log file in c# windows application more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags write to log file c# Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 6.2 million programmers, just like you, how to create a log file in c# code project helping each other. Join them; it only takes a minute: Sign up How to write log file in c#? up vote 14 down vote favorite 5 How would I write a log file in c#? Currently i create log file in c# console application have a timer with this statement which ticks every 20 secs: File.WriteAllText(filePath+"log.txt", log); For everything that i want logged i do this: log += "stringToBeLogged"; As you can assume the string log just grows and grows as the program runs. (I don't even know if there is a maximum chars per string?) I assume that there must be better ways of doing this. i just thought that it would be heavy to write the whole file
How To Create Log File In Asp.net Using C#
again and again for every time something is added to the log. c# logging share|improve this question edited Nov 19 '15 at 8:20 demonplus 2,88082345 asked Nov 25 '13 at 4:55 user2725580 1852614 5 I suggest to discover something alike log4net –Cynede Nov 25 '13 at 4:57 1 See below answer for link to info about log4net. –Dan Nissenbaum Jan 28 '14 at 16:39 add a comment| 9 Answers 9 active oldest votes up vote 21 down vote accepted From the performance point of view your solution is not optimal. Every time you add another log entry with +=, the whole string is copied to another place in memory. I would recommend using StringBuilder instead: StringBuilder sb; ... sb.Append("log something"); ... // flush every 20 seconds as you do it File.AppendAllText(filePath+"log.txt", sb.ToString()); sb.Clear(); By the way your timer event is probably executed on another thread. So you may want to use a mutex when accessing your sb object. Another thing to consider is what happens to the log entries that were added within the last 20 seconds of the execution. You probably want to flush your string to the file right before the app exits. share|improve this answer edited Nov 25 '13 at 5:15 answered Nov 25 '13 at 5:10 evpo 1,421513 add a comment| up vote 9 down vote create a class
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C# Log File Best Practices
Learn more about Stack Overflow the company Business Learn more about hiring developers or how to create log file in c# using log4net posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow c# log file class Community Stack Overflow is a community of 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up how to save exception in txt file? up vote http://stackoverflow.com/questions/20185015/how-to-write-log-file-in-c 5 down vote favorite 1 public DataTable InsertItemDetails(FeedRetailPL objFeedRetPL) { DataTable GetListID = new DataTable(); try { SqlParameter[] arParams = new SqlParameter[4]; arParams[0] = new SqlParameter("@Date", typeof(DateTime)); arParams[0].Value = objFeedRetPL.requestdate; } catch (Exception ex) { string dir = @"C:\Error.txt"; // folder location if (!Directory.Exists(dir)) { Directory.CreateDirectory(dir); File.AppendAllText(Server.MapPath("~/Error.txt"), "Message :" + ex.Message + "
" + Environment.NewLine + "StackTrace :" + ex.StackTrace + "" + Environment.NewLine + "Date :" http://stackoverflow.com/questions/21307789/how-to-save-exception-in-txt-file + DateTime.Now.ToString()); string New = Environment.NewLine + "-----------------------------------------------------------------------------" + Environment.NewLine; File.AppendAllText(Server.MapPath("~/Error.txt"), New); } } } Here, I want to save an Exception in "C:\" ..I am trying In DAL... How to save the Exception In C drive Error.txt c# asp.net c#-4.0 exception try-catch share|improve this question edited Feb 14 '14 at 13:33 ekad 9,745112736 asked Jan 23 '14 at 12:11 Sambasiva 4721723 What error do you get from this code? –Steve Jan 23 '14 at 12:13 Use Log4Net for logging. –hkutluay Jan 23 '14 at 12:14 How to save the exception in Txt file...what i do? –Sambasiva Jan 23 '14 at 12:17 1 You don't need to check first if the Directory.Exists, you can use Directory.CreateDirectory(dir); directly since it will only create it if it does not already exist. –Tim Schmelter Jan 23 '14 at 12:26 add a comment| 1 Answer 1 active oldest votes up vote 28 down vote accepted Since you want to save the exception to C:\Error.txt, you don't need Directory.Exists, Directory.CreateDirectory, or Server.MapPath("~/Error.txt"). You can simply use StreamWriter like this: string filePath = @"C:\Error.txt"; using (StreamWriter writer = new StreamWriter(filePath, true)) { writer.WriteLine("Message :" + ex.Message + "
" + Envir
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Log - Save log as file text - C# Rakuten Viva SubscribeSubscribedUnsubscribe3333 Loading... Loading... Working... Add to Want to watch this again later? Sign in to add this video to a playlist. Sign in Share More Report Need to report the video? Sign in to report inappropriate content. Sign in Statistics 7,055 views 13 Like this video? Sign in to make your opinion count. Sign in 14 3 Don't like this video? Sign in to make your opinion count. Sign in 4 Loading... Loading... Loading... Rating is available when the video has been rented. This feature is not available right now. Please try again later. Published on Aug 25, 2014Normally when we do coding in our program we usually do the try catch finally statement for exception handling. Then an exception might occur for your database related operation or some system level operation. So when the exception happens we would display the exception message like:"ex. message" or writing the "throw exception".Now for a software project in production if an exception happens and if we include in the exception error handling log the inner exceptions then we can easily identify the specific error and where it got stuck. Because the end user can see the error but for fixing that exception issue the developer should know the details of that exception. So for that it's a very good way to keep log the program exception. Category People & Blogs License Standard YouTube License Show more Show less Loading... Advertisement Autoplay When autoplay is enabled, a suggested video will automatically play next. Up next The log4net Tutorial: Logging in C# (hands-on from beginner to advanced) - Duration: 1:37:46. Timothy Corey 34,188 views 1:37:46 How to generate log files - Duration: 14:49. Mukesh otwani 39,551 views 14:49 How to use log4net - Duration: 11:21. perfectfire 9,952 views 11:21 Handel exception and event Log in c# - Duration: 39:29. Mohamed Fathy 604 views 39:29 Write error log in C#/VB.NET - Duration: 2:50. Stefaan Alleweireldt 693 views 2:50 How to cr