C#

//gets the data
public ... GetDatas(){
 cmd.CommandText = "SELECT * FROM XYZ";//or "EXEC SomeProcedure" or....;
 SQLDataReader dr = cmd.ExecuteReader();
 MyClass curr = null;
 List<MyClass> lst = new List<MyClass>;
 while(dr.Read()){
   curr = new MyClass();
   curr.Myprop1 = dr.GetString(0);//or GetWhatever
   ...
   lst.Add(curr);
 }
 ...
 return lst;
}

//and outside, somewhere in your UI
var myList = GetDatas();
dataGridView1.DataSource = myList

private void checkedListBox1_ItemCheck(object sender, ItemCheckEventArgs e)
        {
            if (e.NewValue == CheckState.Checked)
            {
                Console.WriteLine(checkedListBox1.SelectedValue.ToString());
            }
        } 

private void webBrowser1_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
{

}

string userPath = 
    Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData);
string allUsersPath = 
    Environment.GetFolderPath(Environment.SpecialFolder.CommonApplicationData);

using System;
using System.IO;

namespace ConsoleApplication
{
    class Program
    {
        public static readonly string UserPath = 
            Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData);
        public static readonly string AllUsersPath = 
            Environment.GetFolderPath(Environment.SpecialFolder.CommonApplicationData);

        static void Main(string[] args)
        {
            try
            {
                string fileName = "Test.txt";
                string textToSave = "AbcDefGhi";

                string userFilePath = Path.Combine(UserPath, fileName);
                string allUsersFilePath = Path.Combine(AllUsersPath, fileName);

                using (TextWriter userTextWriter = new StreamWriter(userFilePath),
                allUsersTextWriter = new StreamWriter(allUsersFilePath))
                {
                    Console.WriteLine("Writing {0} to {1}", textToSave, userFilePath);
                    userTextWriter.WriteLine(textToSave);
                    Console.WriteLine("Writing {0} to {1}", textToSave, allUsersFilePath);
                    allUsersTextWriter.WriteLine(textToSave);
                }

                using (TextReader userTextReader = new StreamReader(userFilePath),
                allUsersTextReader = new StreamReader(allUsersFilePath))
                {
                    Console.WriteLine("Reading from {0}", userFilePath);
                    Console.WriteLine(userTextReader.ReadLine());
                    Console.WriteLine("Reading from {0}", allUsersFilePath);
                    Console.WriteLine(allUsersTextReader.ReadLine());
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex);
            }
            Console.ReadKey();
        }
    }
}