// add geofence to listbox
private void AddGeofenceToRegisteredGeofenceListBox(Geofence geofence)
{
GeofenceItem item = new GeofenceItem(geofence);
// the registered geofence listbox is data bound
// to the collection stored in the root page
geofenceCollection.Insert(0, item);
}
private void RefreshControlsFromGeofenceItem(GeofenceItem item)
{
if (null != item)
{
Id.Text = item.Id;
Latitude.Text = item.Latitude.ToString();
Longitude.Text = item.Longitude.ToString();
Radius.Text = item.Radius.ToString();
SingleUse.IsChecked = item.SingleUse;
if (0 != item.DwellTime.Ticks)
{
DwellTime.Text = item.DwellTime.ToString();
}
else
{
DwellTime.Text = "";
}
if (0 != item.Duration.Ticks)
{
Duration.Text = item.Duration.ToString();
}
else
{
Duration.Text = "";
}
if (0 != item.StartTime.Ticks)
{
DateTimeOffset dt = item.StartTime;
StartTime.Text = formatterShortDateLongTime.Format(dt);
}
else
{
StartTime.Text = "";
}
// Update flags used to enable Create Geofence button
OnIdTextChanged(null, null);
OnLongitudeTextChanged(null, null);
OnLatitudeTextChanged(null, null);
OnRadiusTextChanged(null, null);
}
}
/// <summary>
/// This is the click handler for the 'Remove Geofence Item' button.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void OnRemoveGeofenceItem(object sender, RoutedEventArgs e)
{
if (null != RegisteredGeofenceListBox.SelectedItem)
{
// get selected item
GeofenceItem itemToRemove = RegisteredGeofenceListBox.SelectedItem as GeofenceItem;
var geofence = itemToRemove.Geofence;
// remove the geofence from the client side geofences collection
Remove(geofence);
// empty the registered geofence listbox and repopulate
geofenceCollection.Clear();
FillRegisteredGeofenceListBoxWithExistingGeofences();
}
}
void OnRegisteredGeofenceListBoxSelectionChanged(object sender, SelectionChangedEventArgs e)
{
IList <object> list = e.AddedItems;
if (0 == list.Count)
{
// disable the remove button
RemoveGeofenceItem.IsEnabled = false;
}
else
{
// enable the remove button
RemoveGeofenceItem.IsEnabled = true;
// update controls with the values from this geofence item
// get selected item
GeofenceItem item = RegisteredGeofenceListBox.SelectedItem as GeofenceItem;
RefreshControlsFromGeofenceItem(item);
DetermineCreateGeofenceButtonEnableState();
}
}