Log file creating using Log4net in Asp.net and C#

By adding log4net.dll reference to project we can create log file. I will show you step by step process below.

Step:1

Create a new project and add one web form like webform.aspx.

Step:2

Then next in the solution explorer right click on references. Click on add reference. A window is opened in that click on browse and select log4net.dll (you can get this from internet or download from above)

Step:3

Now open the Web.config from solution explorer and add below code.

</configSections>

</layout>

</appender>

<root>

<appender-ref ref="FileAppender"/>

</root>

</log4net>

</configuration>

Step:4

Now open properties folder in solution explorer and open AssemblyInfo.cs file then add below code.

[assembly:log4net.Config.DOMConfigurator] //for starting log4net

Step:5

In webform1.aspx add below code.

</head>

<body>

<div>

<asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>

</div>

</form>

</body>

</html>

Step:6

Go to webfrom1.aspx.cs add below code.

public static readonly log4net.ILog logfile = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);

protected void Page_Load(object sender, EventArgs e)

{

const string a = "Hi";

logfile.Info("log file test");//write only text

logfile.InfoFormat("logfile test with other values" + a); // write text with values

Label1.Text = "log file created";

}

In the above code we have 2 types of log file writing.

1.“Logfile.info” is for only given test writing.

2. “Logfile.infoformat” is for write text with assigned values.

Note: logfile.txt created automatically.

Now run the program and check for logfile where specified location.

Happy coding!!

Log file creating using Log4net in Asp.net and C#