public CatalogItemScreen(int catalogId, int itemId)
{
InitializeComponent();
owningCatalog = Catalog.getCatalogById(catalogId);
this.catalogId = catalogId;
tempItem = CatalogItem.getCatalogItemById(itemId);
this.itemId = itemId;
editing = true;
//fill form ui from retreived object
txtCatalogId.Text = catalogId.ToString();
}
