How to add Button to dataGridView control

Hi
  Add Button to datagridview Control:-
  var buttonCol = new DataGridViewButtonColumn();
  buttonCol.Name = "ButtonColumnName";
  buttonCol.HeaderText = "Header";
  buttonCol.Text = "Button Text";

dataGridView.Columns.Add(buttonCol);

foreach (DataGridViewRow row in dataGridView.Rows)
{
DataGridViewButtonCell button = (row.Cells["ButtonColumnName"] as DataGridViewButtonCell);
}

Refer this excellent example on msdn.