Hi, droiddeve
Please refer the below code.
C#
DataGridViewButtonColumn btncolumns = new DataGridViewButtonColumn();
btncolumns.HeaderText = "Action";
btncolumns.UseColumnTextForButtonValue = true;
btncolumns.Width = 60;
btncolumns.Name = "Button";
btncolumns.Text = "Update";
dataGridView1.Columns.Insert(0, btncolumns);