I started in 1983, in 2007 i still on a case!

namespace WindowsApplication8
{
    public partial class Form1 : Form
    {
        DataColumn sql_Column;
        DataTable sql_Table = new DataTable("Test");
        string str = "1";

        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            for (int i =  0 ; i <  30000 ; i++)
            {
                sql_Column = new DataColumn(str,typeof(int));
                sql_Column.ReadOnly = true;
                str = str + "1";

                sql_Table.Columns.Add(sql_Column);

            }

            MessageBox.Show(sql_Table.Columns.Count.ToString());

        }
    }
}

I started in 1983, in 2007 i still on a case!