/// <summary>
/// Invoked when a filter is selected using the ComboBox in snapped view state.
/// </summary>
/// <param name="sender">The ComboBox instance.</param>
/// <param name="e">Event data describing how the selected filter was changed.</param>
void Filter_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
// Determine what filter was selected
var selectedFilter = e.AddedItems.FirstOrDefault() as Filter;
if (selectedFilter != null)
{
// Mirror the results into the corresponding Filter object to allow the
// RadioButton representation used when not snapped to reflect the change
selectedFilter.Active = true;
// TODO: Respond to the change in active filter by setting this.DefaultViewModel["Results"]
// to a collection of items with bindable Image, Title, Subtitle, and Description properties
this.DefaultViewModel["Results"] = MeetingDataSource.Search((string)DefaultViewModel["Query"]);
// Ensure results are found
object results;
ICollection resultsCollection;
if (this.DefaultViewModel.TryGetValue("Results", out results) &&
(resultsCollection = results as ICollection) != null &&
resultsCollection.Count != 0)
{
VisualStateManager.GoToState(this, "ResultsFound", true);
return;
}
}
// Display informational text when there are no search results.
VisualStateManager.GoToState(this, "NoResultsFound", true);
}
/// <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="navigationParameter">The parameter value passed to
/// <see cref="Frame.Navigate(Type, Object)"/> when this page was initially requested.
/// </param>
/// <param name="pageState">A dictionary of state preserved by this page during an earlier
/// session. This will be null the first time a page is visited.</param>
protected override void LoadState(Object navigationParameter, Dictionary <String, Object> pageState)
{
// TODO: Create an appropriate data model for your problem domain to replace the sample data
var sampleDataGroups = MeetingDataSource.GetGroups((String)navigationParameter);
this.DefaultViewModel["Groups"] = sampleDataGroups;
}
/// <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="navigationParameter">The parameter value passed to
/// <see cref="Frame.Navigate(Type, Object)"/> when this page was initially requested.
/// </param>
/// <param name="pageState">A dictionary of state preserved by this page during an earlier
/// session. This will be null the first time a page is visited.</param>
protected override void LoadState(Object navigationParameter, Dictionary <String, Object> pageState)
{
try
{
// Allow saved page state to override the initial item to display
if (pageState != null && pageState.ContainsKey("SelectedItem"))
{
navigationParameter = pageState["SelectedItem"];
}
// TODO: Create an appropriate data model for your problem domain to replace the sample data
Item = MeetingDataSource.GetItem((String)navigationParameter);
this.DefaultViewModel["Item"] = Item;
this.DefaultViewModel["Group"] = Item.Group;
this.DefaultViewModel["Items"] = Item.Group.Items;
this.flipView.SelectedItem = Item;
}
catch (Exception)
{
}
}
