I want to prevent empty cells when the user adds a new row in the datagridview

private void dgv1_CellValidating(object sender, DataGridViewCellValidatingEventArgs e)
       {


           string headerText = dgv1.Columns[e.ColumnIndex].HeaderText;
           if (!headerText.Equals("ID"))
           if (string.IsNullOrEmpty(e.FormattedValue.ToString()))
           {
               dgv1.Rows[e.RowIndex].ErrorText = "Information not complete";
               e.Cancel = true;
           }


           }

private void dgv1_CellEndEdit(object sender, DataGridViewCellEventArgs e)
        {
           dgv1.Rows[e.RowIndex].ErrorText = string.Empty;
        }