C# frequently use code snippet

        // popup message modeless dialog        static void PopUpMsg(string msg)        {            TextBox editBox = new TextBox();            editBox.ReadOnly = true;            editBox.Multiline = true;            editBox.Dock = DockStyle.Fill;            editBox.Text = msg;            Form dlg = new Form();            dlg.FormBorderStyle = FormBorderStyle.FixedSingle;            dlg.Text = Application.ProductName;            dlg.Controls.Add(editBox);            dlg.Show();        }

      // save control values on form close        private void Form1_FormClosed(object sender, FormClosedEventArgs e)        {            File.WriteAllLines(Path.ChangeExtension(Application.ExecutablePath, "formvalue.csv"),                from c in this.Controls.OfType<Control>()                where c is TextBox || c is DateTimePicker || c is CheckBox                select string.Format("{0}={1}", c.Name, (c is CheckBox) ? (c as CheckBox).Checked.ToString() : c.Text)                );        }        // load control values startup        private void Form1_Load(object sender, EventArgs e)        {if(File.Exists(Path.ChangeExtension(Application.ExecutablePath, "formvalue.csv"))){var cfgMap =(from line in File.ReadAllLines(Path.ChangeExtension(Application.ExecutablePath, "formvalue.csv")) let tokens = line.Split('=') select new { Key=tokens[0].Trim(), Value=tokens[1].Trim() }). ToDictionary(kvp => kvp.Key, kvp => kvp.Value);Controls.Cast<Control>().ToList<Control>().ForEach(ctrl =>{if(cfgMap.ContainsKey(ctrl.Name)){if (ctrl is TextBox || ctrl is DateTimePicker)ctrl.Text = cfgMap[ctrl.Name];else if (ctrl is CheckBox)(ctrl as CheckBox).Checked = "true".Equals(cfgMap[ctrl.Name], StringComparison.OrdinalIgnoreCase);}});}        }

// simple serialization examplenamespace simple_serialize{    [Serializable]    class MyObject    {        public string Name;        public double Weight;    }    class Program    {        static void Main(string[] args)        {            MyObject obj = new MyObject();            obj.Name = "David";            obj.Weight = 60;            string soapFName = "objects.soap";            using(FileStream fs = File.Create(soapFName))            {                IFormatter fmt = new SoapFormatter();                fmt.Serialize(fs, obj);            }            MyObject objLoad = null;            using (FileStream fs = File.OpenRead(soapFName))            {                IFormatter fmt = new SoapFormatter();                objLoad = (MyObject)fmt.Deserialize(fs);            }            if(objLoad != null)            {                Console.WriteLine("name = {0}, weight = {1}", objLoad.Name, objLoad.Weight);            }            Console.ReadLine();        }    }}