private void Form1_Load(object sender, EventArgs e)
        {
            DataGridViewButtonColumn buttons = new DataGridViewButtonColumn();
            
            buttons.HeaderText = "Sales";
            buttons.Text = "Sales";
            buttons.Name = "Sales";
            buttons.UseColumnTextForButtonValue = true;
            buttons.AutoSizeMode = DataGridViewAutoSizeColumnMode.AllCells;
            buttons.FlatStyle = FlatStyle.Standard;
            buttons.CellTemplate.Style.BackColor = Color.Honeydew;
            buttons.DisplayIndex = 0;


            DataGridViewTextBoxColumn text = new DataGridViewTextBoxColumn();
            text.HeaderText = "Column2";
            text.Name = "Column2";


            dataGridView1.Columns.Add(buttons);
            dataGridView1.Columns.Add(text);

            dataGridView1.Rows.Add(10);

            for (int i = 0; i < dataGridView1.RowCount; i++)
            {
                ((DataGridViewButtonCell)dataGridView1.Rows[i].Cells["Sales"]).Value = "Sales " + i.ToString();                
                dataGridView1.Rows[i].Cells["Column2"].Value = i.ToString();
            }
            


        }