LogViewer.About.Window_Loaded C# (CSharp) Method

        private void Window_Loaded(object sender, RoutedEventArgs e)
        {
            StringBuilder sbText = new StringBuilder();
            Assembly assembly = Assembly.GetEntryAssembly();
            if (assembly != null)
            {
                object[] attributes = assembly.GetCustomAttributes(false);
                foreach (object attribute in attributes)
                {
                    Type type = attribute.GetType();
                    if (type == typeof(AssemblyTitleAttribute))
                    {
                        AssemblyTitleAttribute title = (AssemblyTitleAttribute)attribute;
                        labelAssemblyName.Content = title.Title;
                    }
                    if (type == typeof(AssemblyFileVersionAttribute))
                    {
                        AssemblyFileVersionAttribute version = (AssemblyFileVersionAttribute)attribute;
                        labelAssemblyVersion.Content = version.Version;
                    }
                    if (type == typeof(AssemblyCopyrightAttribute))
                    {
                        AssemblyCopyrightAttribute copyright = (AssemblyCopyrightAttribute)attribute;
                        sbText.AppendFormat("{0}\r", copyright.Copyright);
                    }
                    if (type == typeof(AssemblyCompanyAttribute))
                    {
                        AssemblyCompanyAttribute company = (AssemblyCompanyAttribute)attribute;
                        sbText.AppendFormat("{0}\r",company.Company);
                    }
                    if (type == typeof(AssemblyDescriptionAttribute))
                    {
                        AssemblyDescriptionAttribute description = (AssemblyDescriptionAttribute)attribute;
                        sbText.AppendFormat("{0}\r", description.Description);
                    }
                }
                labelAssembly.Content = sbText.ToString();
            }
            string text =
            @"<log4net>
              <appender name=""RollingFileAppender"" type=""log4net.Appender.RollingFileAppender"">
            <watcher type=""log4net.Util.PatternString"" value=""c:\log\log.xml"" />
            <appendToFile value=""true"" />
            <datePattern value=""yyyyMMdd"" />
            <rollingStyle value=""Date"" />
            <layout type=""log4net.Layout.XmlLayoutSchemaLog4j"">
              <locationInfo value=""true"" />
            </layout>
              </appender>
              <root>
            <level value=""DEBUG"" />
            <appender-ref ref=""RollingFileAppender"" />
              </root>
            </log4net>";

            this.RichTextBox1.AppendText(text);
        }