C#

SqlConnection conn = null;
SqlCommand cmd = null;

try
{
}
catch (Exception ex)
{
throw;
}
finally
{
if (cmd != null)
cmd.Dispose();

if (conn != null)
conn.Dispose();
}

public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
            Method();
            Method2();

        }

        void Method()
        {

            TestA b = new TestA("first one");


            for (int i = 0; i < 10; i++)
            {
                TestA a = new TestA();
            }
            GC.Collect();
        }

        void Method2()
        {

        }

    }

    public class TestA
    {
        string MSG;

        public TestA()
        {
            MSG = "Not first one";
        }

        public TestA(string msg)
        {
            MSG = msg;
        }


        ~TestA()
        {

            MessageBox.Show("Destructing A " + MSG);

        }



    }

I want to design gridview inside another gridview with insert update and delete

I design database with tables are

1) tbl_Show(ShowID{P},ShowTime,Silver,Gold, Platinum,ShowTimeId) 2) tbl_STime(ShowTimeId{P},TheatreId,MovieId,FromDate,ToDate) 3) tbl_Theatre(TheatreId{P}, TName, Taddress)
I want to design same in asp.net C# like this visit http://www.codeproject.com/Articles/14293/Gridview-Inside-a-GridView-in-ASP-NET-2-0