public static void AddItem(APIBank postedItem)
{
List <APIBank> list = GetData();
postedItem.Code = (list.Count + 1).ToString();
list.Add(postedItem);
}
public static void UpdateItem(APIBank postedItem)
{
var editedModel = GetData().First(i => i.Code == postedItem.Code);
editedModel.Name = postedItem.Name;
editedModel.Address = postedItem.Address;
editedModel.SwiftCode = postedItem.SwiftCode;
editedModel.Logo = postedItem.Logo;
}