/// <summary>
/// Constructor
/// </summary>
public MainViewModel()
{
_dataSource = new SampleDataSource();
// Commands
ShowItemDetails = new DelegateCommand <SampleDataItemViewModel>(OnShowItemDetails, it => it != null);
ShowGroupDetails = new DelegateCommand <SampleDataGroupViewModel>(OnShowGroupDetails, it => it != null);
SortByName = new DelegateCommand(OnSortGroupsByName);
SelectedItem = AllGroups[0].Items[0];
SelectedGroup = AllGroups[0];
}
public void OnNavigatedTo(NavigatedToEventArgs e)
{
var state = e.State;
if (state != null)
{
object id;
if (state.TryGetValue("SelectedItem", out id) && id != null)
{
SelectedItem = GetItem(id.ToString());
}
if (state.TryGetValue("SelectedGroup", out id) && id != null)
{
SelectedGroup = GetGroup(id.ToString());
}
}
}
/// <summary>
/// Display the item details
/// </summary>
/// <param name="item"></param>
private void OnShowItemDetails(SampleDataItemViewModel item)
{
SelectedItem = item;
SelectedGroup = item.Group;
Resolve <IPageNavigator>().NavigateTo("ItemDetailsPage");
}
/// <summary>
/// Display the group details
/// </summary>
/// <param name="group"></param>
private void OnShowGroupDetails(SampleDataGroupViewModel group)
{
SelectedGroup = group;
SelectedItem = group.Items.FirstOrDefault();
Resolve <IPageNavigator>().NavigateTo("GroupDetailsPage");
}