List all event log entries (C#) : Eventlog « Development « ASP.NET Tutorial
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- Eventlog
File: Default.aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="EventReviewPage" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Label ID="Label1" runat="server" Text="Event Log:"/>
<asp:TextBox ID="txtLog" runat="server">your Name</asp:TextBox>
<asp:CheckBox ID="chkAll" runat="server" AutoPostBack="True" OnCheckedChanged="chkAll_CheckedChanged"
Text="Get all entries for this log" /><br />
<asp:Label ID="Label2" runat="server" Text="Source:"/>
<asp:TextBox ID="txtSource" runat="server">DivideByZeroApp</asp:TextBox><br />
<br />
<asp:Button ID="cmdGet" runat="server" OnClick="cmdGet_Click" Text="Get Records" /><br />
<br />
<asp:Panel ID="Panel1" runat="server" BorderStyle="Groove" BorderWidth="2px" Height="168px"
ScrollBars="Vertical" Width="488px">
<asp:Label ID="lblResult" runat="server"></asp:Label></asp:Panel>
</div>
</form>
</body>
</html>
File: Default.aspx.cs
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Diagnostics;
public partial class EventReviewPage : System.Web.UI.Page
{
protected void chkAll_CheckedChanged(object sender, EventArgs e)
{
if (chkAll.Checked)
{
txtSource.Text = "";
txtSource.Enabled = false;
}
else
{
txtSource.Enabled = true;
}
}
protected void cmdGet_Click(object sender, EventArgs e)
{
lblResult.Text = "";
if (!EventLog.Exists(txtLog.Text))
{
lblResult.Text = "The event log " + txtLog.Text;
lblResult.Text += " doesn't exist.";
}
else
{
System.Text.StringBuilder sb = new System.Text.StringBuilder();
EventLog log = new EventLog(txtLog.Text);
foreach (EventLogEntry entry in log.Entries)
{
if (chkAll.Checked || entry.Source == txtSource.Text)
{
sb.Append("<b>Entry Type:</b> ");
sb.Append(entry.EntryType.ToString());
sb.Append("<br /><b>Message:</b> ");
sb.Append(entry.Message);
sb.Append("<br /><b>Time Generated:</b> ");
sb.Append(entry.TimeGenerated);
sb.Append("<br /><br />");
}
}
lblResult.Text = sb.ToString();
}
}
}