public async Task RemovePurchaseKind(PurchaseKind purchaseKind)
{
var toRemove = purchaseKind.ToString();
if (Contains(toRemove))
{
availablePurchaseKinds.RemoveWhere(pk => pk.p.Equals(toRemove));
}
}
public async Task AddPurchaseKind(PurchaseKind purchaseKind)
{
var toAdd = purchaseKind.ToString();
if (!Contains(toAdd))
{
availablePurchaseKinds.Add(new Prem(toAdd));
await ProxyMarketContext.Instance.saveChanges();
}
;
}
public bool IsAvalable(PurchaseKind purchaseKind)
{
return(Contains(purchaseKind.ToString()));
}