Re: [DOTNET] Eventlog Viewer

[Vincent Van Proosdij]

How many entries are there in your log? Maybe you can display only the
errors. I tried your code on 1000 entries, writing only the errors to
xml and it performs quite nice. Thanks for the snippet. I was not aware
of how easy this
Was. I've incorporated it into my dataaccess/debug/tracing framework.

-----Original Message-----
From: Powell, Simon [mailto:[EMAIL PROTECTED]] 
Sent: vrijdag 31 mei 2002 10:04
To: [EMAIL PROTECTED]
Subject: [DOTNET] Eventlog Viewer

Hi,

I'm still fairly new to .NET, but I want to create an eventlog viewer
using
C#. Attached at the bottom is some code I've already written. My problem
is
that I can't match the performance of the Windows NT eventview for
reading
the application event log. I can read a remote machine's app log in
seconds,
but my code takes over a minute to read the same information. How can I
improve my code? Someone out there must have tried already? Or should I
just
give up and use a diffent language (C++)? If I try a listBox (rather
than
listView), I get a small improvement, but nothing to match the
eventviewer.
What am I doing wrong? I am the only one trying this? If Microsoft in
the
future will be using C# to build their OS, will they be using the
eventlog
class and a listView control, if so how will they achieve acceptable
perform?

Is there a good book out there that would help?

Any help would be much appricated.

Simon

(frustrated and about to give up...)


        Code snippet*
                        |
                        |
                        V


private void GetEventlog()
{
        int rowcount = 0;
        EventLog NTIlog = new EventLog("Application",CurMachine);

        for(int i = 0; i < NTIlog.Entries.Count; i++)
        {

                if(NTIlog.Entries[i].Source.ToString() ==
"PontisInstallAgent")
                {
                ListViewItem item =
listView1.Items.Add(NTIlog.Entries[i].TimeGenerated.ToString());


                switch(NTIlog.Entries[i].EntryType.ToString())
                {
                        case "Error" :
                                item.BackColor = Color.Red;
                                item.ForeColor = Color.White;
                                break;
                        case "Warning" :
                                item.BackColor = Color.Yellow;
                                item.ForeColor = Color.Black;
                                break;
                        default :
                                item.BackColor = Color.White;
                                item.ForeColor = Color.Black;
                                break;
                }

item.SubItems.Add(NTIlog.Entries[i].EntryType.ToString());
                        item.SubItems.Add(NTIlog.Entries[i].Message);
                }
        }


                        foreach(ColumnHeader col in listView1.Columns)
                        {
                                col.Width = -2;
                        }

                        NTIlog.Close();
                }





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