I'm not an expert WinForms programmer...why did you use a delegate
instead of calling AppendText directly on textbox:
// untested
public class TextBoxAppender : log4net.Appender.IAppender
{
TextBox textbox;
string name = null;
log4net.Layout.ILayout layout = new log4net.Layout.SimpleLayout();
public string Name
{
get { return name; }
set { name = value; }
}
public TextBoxAppender(TextBox textbox)
{
this.textbox = textbox;
}
public void DoAppend(log4net.Core.LoggingEvent loggingEvent)
{
StringBuilder buffer = new StringBuilder();
using (StringWriter writer = new StringWriter(buffer))
{
layout.Format(writer, loggingEvent);
}
textbox.AppendText(buffer.ToString());
}
public void Close()
{
}
}
Is it becuase the Form that contains the TextBox is on its own thread
so the main GUI isn't blocked becuase of logging?
--- Morten Andersen <[EMAIL PROTECTED]> wrote:
> tinhuty he wrote:
> >
> > One more question: I have a windows form application and I want
> some
> > of the log entries automatically appear in some area of form(for
> > example right bottom of the form). what is the best way to do it?
> >
> Just create your own appender. I use a very simple appender called
> TextBoxAppender.
>
>
---------------------------------------------------------------------------------------
> public class TextBoxAppender : log4net.Appender.IAppender
> {
> delegate void AppendTextDelegate(string text);
> AppendTextDelegate invokeDelegate;
> TextBox textbox;
> string name = null;
> log4net.Layout.ILayout layout = new
> log4net.Layout.SimpleLayout();
>
> public string Name
> {
> get { return name; }
> set { name = value; }
> }
>
> public TextBoxAppender(TextBox textbox)
> {
> invokeDelegate = new AppendTextDelegate(AppendText);
> this.textbox = textbox;
> }
>
> public void DoAppend(log4net.Core.LoggingEvent loggingEvent)
> {
> StringBuilder buffer = new StringBuilder();
> using (StringWriter writer = new StringWriter(buffer))
> {
> layout.Format(writer, loggingEvent);
> }
> AppendText(buffer.ToString());
> }
>
> void AppendText(string input)
> {
> if (textbox.InvokeRequired)
> textbox.Invoke(invokeDelegate, input);
> else
> textbox.AppendText(input);
> }
>
> public void Close()
> {
>
> }
> }
>
---------------------------------------------------------------------------------------
>
