This article will show you how you can create a or manage a
log file date wise or write a log file date wise in a text file in asp.net using C#.net. In this
I have shown process to create log text file and write the log into the text
file in you asp.net
application using c#.net.
Some of my previous
articles are as follows: Assign
Client Side Click Event To Button Control Using jQuery In Asp.Net, Bind
HyperLink Control To GridView In Asp.net Using C#, Enable
Or Disable All GridView Button On Check Of CheckBox Using jQuery, Write
New Line Text In Text File(.txt) in Asp.Net Using C#.Net and VB.Net,
Bind
HyperLink Control With URL Parameter To GridView In Asp.net Using C#,
Ajax
GridView Shorting Without Page Refresh Using jQuery In Asp.net and C#.Net,
Passing
Data from one page to another page in Asp.net Using C#.Net, How
To Use Hyper Link Tag In Gridview In Asp.Net C#, Enable
Or Disable GridView Button By Row CheckBox Using jQuery In Asp.Net.
So for this article first we will create a new asp.net
application and add some button and a label control in the page. After adding
the controls your page will look as shown below.
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm12.aspx.cs" Inherits="WebApplication7.WebForm12" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Log Creation or
Managing Log File Date Wise In a Text File in Asp.net Using C#.Net</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Button ID="Button1" runat="server" Text="Button 1 Clicked By User" OnClick="Button1_Click"
/>
<br />
<asp:Button ID="Button2" runat="server" Text="Button 2 Clicked By User" OnClick="Button2_Click"
/>
<br />
<asp:Button ID="Button4" runat="server" Text="Exception Button" OnClick="Button4_Click"
/>
<br />
<br />
<asp:Label ID="lblmessage"
runat="server" style="color: #FF0000" Text=""></asp:Label>
</div>
</form>
</body>
</html>
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In above code I have added 2 buttons and a label control to create the log. Button1 and 2 will simply log the message and button3 will log the exception message.
Now check the below code.
public void LogCreation(string message)
{
if (!Directory.Exists(Server.MapPath("\\Log")))
{
Directory.CreateDirectory(Server.MapPath("\\Log"));
}
string logFilename = "Log_" + DateTime.Now.ToLongDateString()
+ ".txt";
string logFilePath = @"\Log\" +
logFilename;
//Validate log file exist or not
if (!File.Exists(Server.MapPath(logFilePath)))
{
File.Create(Server.MapPath(logFilePath));
}
message = DateTime.Now.ToString() + "
: " + message;
StreamWriter file
= new StreamWriter(Server.MapPath(logFilePath),
true);
file.Write(message + "\r\n");
file.Close();
}
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In above code I have first checked the log folder exists or not if it does not exists the code will create it. After validating the file we will validate the log text file as per date and if it does not then code will create it. After that assign date time for log message and write it into the text file. This is a ready to use code you can use it in your asp.net application very easily.
Now I will show you how you can use the above code in your
application. Now check the below code.
protected void Button1_Click(object sender, EventArgs e)
{
LogCreation("Click event by
Button 1.");
lblmessage.Text = "Log
created successfully for Button 1";
}
protected void Button2_Click(object sender, EventArgs e)
{
LogCreation("Click event by
Button 2.");
lblmessage.Text = "Log
created successfully for Button 2";
}
protected void Button4_Click(object sender, EventArgs e)
{
try
{
int z = 0;
int val = 1 / z;
}
catch (Exception ex)
{
LogCreation("Exception - " + ex.Message.ToString());
}
}
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In above code I have simple called the function and pass the message. Now we have done run the application to check the output.
Now check the log file
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