OTS/OTSIncAReportApp/1-UI/OutputNlog.cs

using NLog;
using NLog.Config;
using OTS.WinFormsUI.Docking;
using System;
using System.Linq;

namespace OTSIncAReportApp
{
    public partial class OutputNlog : DockContent
    {
        protected static NLog.Logger loger;
        public OutputNlog()
        {
            InitializeComponent();
        }

        private void OTSMeasureOutputNlog_Load(object sender, EventArgs e)
        {
            combox_NlogType.Items.Add("Trace");
            combox_NlogType.Items.Add("Debug");
            combox_NlogType.Items.Add("Info");
            combox_NlogType.Items.Add("Warn");
            combox_NlogType.Items.Add("Error");
            combox_NlogType.Items.Add("Fatal");
            combox_NlogType.SelectedIndex = 0;
            loger = NLog.LogManager.GetCurrentClassLogger();
        }

        private void button_test_Click(object sender, EventArgs e)
        {
            loger = NLog.LogManager.GetCurrentClassLogger();
            loger.Trace("Trace");
            loger.Debug("Debug");
            loger.Info("Info");
            loger.Warn("Warn");
            loger.Error("Error");
            loger.Fatal("Fatal THIS IS A LOG WHICH USED TO TEST THE LOG LENTH FIT TO THE FORM!");
        }

        private void button_Clear_Click(object sender, EventArgs e)
        {
            richTextBox_Nlog.Clear();
        }

        private void combox_NlogType_SelectedIndexChanged(object sender, EventArgs e)
        {
            if (null == combox_NlogType.SelectedItem) return;
            String str = combox_NlogType.SelectedItem.ToString();    // 获取日志级别.
            LogLevel lv = LogLevel.Info;    // 若选择的值无效, 则当作 Info级.
            lv = LogLevel.FromString(str);
            LoggingRule lr = LogManager.Configuration.LoggingRules.FirstOrDefault(
                                r => r.Targets.Any(
                                    t => "control" == t.Name
                                )
                            );
            if (lr != null)
            {
                lr.SetLoggingLevels(lv, LogLevel.Fatal);
                LogManager.ReconfigExistingLoggers();    // 使配置生效.
            }
        }

        private void button_stop_Click(object sender, EventArgs e)
        {
            if (button_stop.Text == "Stop")
            {
                LoggingRule lr = LogManager.Configuration.LoggingRules.FirstOrDefault(
                                r => r.Targets.Any(
                                    t => "control" == t.Name
                                )
                            );
                LogManager.Configuration.LoggingRules.Remove(lr);
                LogManager.ReconfigExistingLoggers();
                button_stop.Text = "Start";
            }
            else
            {
                if (null == combox_NlogType.SelectedItem) return;
                String str = combox_NlogType.SelectedItem.ToString();
                LogManager.Configuration.AddRule(LogLevel.FromString(str), LogLevel.Fatal, "control");
                LogManager.ReconfigExistingLoggers();    // 使配置生效.
                button_stop.Text = "Stop";
            }
        }

    }
}