Form Load event Add Gridview with Combox in Windows Application

Form Load event Add Gridview with Combox in Windows Application
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private void Form1_Load(object sender, EventArgs e)
{
DataGridViewComboBoxColumn combo1 = new DataGridViewComboBoxColumn();
combo1.HeaderText = "Country";
combo1.Items.Add("India");
combo1.Items.Add("Srilanka");
combo1.Items.Add("Pakistan");
combo1.Items.Add("SouthAfrica");
dataGridView1.Columns.Add(combo1);
}