How to edit, update datagridview and give color to the cell depends on value of cell in windows forms.

Private void dgv1_CurrentCellDirtyStateChanged(Object sender, System.EventArgs e) 
{
            If (dgv1.IsCurrentCellDirty)
            {
                dgv1.CommitEdit(DataGridViewDataErrorContexts.Commit)
                If (dgv1.CurrentCell.ColumnIndex == 1)
                {  
                    oCell = dgv1.Rows[dgv1.CurrentCell.RowIndex].Cells[0] as DataGridViewCheckBoxCell;
                       bool bChecked = (null != oCell && null != oCell.Value && true == (bool)oCell.Value);
                       if (true == bChecked)
                       {
                          dgv1.Rows[dgv1.CurrentCell.RowIndex].DefaultCellStyle.BackColor = Color.Yellow;
                       }                  
                    else
                    {
                         dgv1.Rows[dgv1.CurrentCell.RowIndex].DefaultCellStyle.BackColor = Color.Green;
                    }
                }
            }
}