public inventario buscar_item(int id_material)
{
ic = dm.GetinventarioCollection();
inventario i = ic.FindByidmaterial(id_material);
return(i);
}
public void insertar_item(int id_material, int cantidad)
{
if (ic.FindByidmaterial(id_material) == null)
{
ic = dm.GetinventarioCollection();
List <inventario> lp = ic.Cast <inventario>().ToList();
int id;
if (lp.Count == 0)
{
id = 1;
}
else
{
id = lp.Last().id + 1;
}
mhc = dm.Getmaterial_herramientaCollection();
dm.Newinventario(id, id_material, cantidad, mhc.FindByid(id_material));
dm.CommitAll();
}
}