private void agregarCampos(DataGridView unDg)
{
unDg.Columns[0].Name = "CLI_COD";
unDg.Columns[1].Name = "CLI_DNI";
unDg.Columns[2].Name = "CLI_NOMBRE";
unDg.Columns[3].Name = "CLI_APELLIDO";
unDg.Columns[4].Name = "CLI_DIRECCION";
unDg.Columns[5].Name = "CLI_TELEFONO";
unDg.Columns[6].Name = "CLI_MAIL";
unDg.Columns[7].Name = "CLI_FECHA_NAC";
}