private void btnadd_Click(object sender, EventArgs e)
{
FrmAddTipoCombustible frm = new FrmAddTipoCombustible();
this.Hide();
frm.ShowDialog();
}
private void btnedit_Click(object sender, EventArgs e)
{
int rowindex = datagridcombustible.CurrentCell.RowIndex;
int columnindex = datagridcombustible.CurrentCell.ColumnIndex;
FrmAddTipoCombustible fed = new FrmAddTipoCombustible();
this.Hide();
fed.values = Int32.Parse(datagridcombustible.Rows[rowindex].Cells[columnindex].Value.ToString());
fed.ShowDialog();
}