/// <summary>
/// Populates the page with content passed during navigation. Any saved state is also
/// provided when recreating a page from a prior session.
/// </summary>
/// <param name="sender">
/// The source of the event; typically <see cref="NavigationHelper" />
/// </param>
/// <param name="e">
/// Event data that provides both the navigation parameter passed to
/// <see cref="Frame.Navigate(Type, Object)" /> when this page was initially requested and
/// a dictionary of state preserved by this page during an earlier
/// session. The state will be null the first time a page is visited.
/// </param>
private async void navigationHelper_LoadState(object sender, LoadStateEventArgs e)
{
try
{
// TODO: Create an appropriate data model for your problem domain to replace the Customer data
CustomerDataItem customer = await CustomerDataSource.GetItemAsync((String)e.NavigationParameter);
IEnumerable <SaleableItemDataGroup> saleableItemDataGroups =
await SaleableItemDataSource.GetGroupsAsync();
DefaultViewModel["ItemsToSell"] = saleableItemDataGroups;
var currentSale = new Sale();
currentSale.Customer = customer;
DefaultViewModel["Sale"] = currentSale;
}
catch (Exception ex)
{
Debug.WriteLine(ex);
}
}