Best Practice logging pattern for Silverlight application

using System;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Ink;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using BusinessAppMVVM.Web.Services;

namespace BusinessAppMVVM.Helpers
{
    public class LoggerManager
    {
        /// <summary>
        /// Writing the Error and Activity logs in the log files.
        /// </summary>
        /// <param name="errorCommentOrType">Error Comment or Error Type or in case of event enter Event Name</param>
        /// <param name="errorDetails">Error Details</param>
        /// <returns>bool</returns>
        public static bool WriteLog(string errorCommentOrType, string errorDetails)
        {
            try
            {
                MessageBox.Show("Some error is occured in application. Please try again after refresh. " + errorDetails);
                if (((App)Application.Current).IsEventLogOn)
                {
                    LoggingContext logErrorServiceClient = new LoggingContext();
                    logErrorServiceClient.LogException(errorCommentOrType, errorDetails,
                    invokeOperation =>
                    {
                        if (invokeOperation.HasError)
                        {
                            MessageBox.Show("Some error is occurred while error logging!");
                        }
                        else
                            MessageBox.Show(@"Error is logged in BusinessAppMVVM\BusinessAppMVVM.Web\logs\.");
                    }, null);
                }
                return true;
            }
            catch (Exception ex)
            {
                return false;
            }
        }
    }
    /// <summary>
    /// Log Type
    /// </summary>
    public enum LogType
    {
        DEBUG,
        ERROR,
        FATAL,
        INFO,
        WARN
    }
}