/// <summary>
/// Update all grouping options. This method is intended to be called only from parent view.
/// </summary>
/// <param name="stateManager">The new state manager for the hosted page.</param>
public void ReloadGroupingOptions(IPageGroupingStateManager stateManager)
{
IsNavigationOpsAvailable = false;
_stateManager = stateManager;
SortingOptions.Clear();
// Reload options
var options = _stateManager.PopulateAvailablePairs();
foreach (var option in options)
{
SortingOptions.Add(option);
}
// Set default option
// We don't need to set it - it is already passed to view
var lastUsedOption = _stateManager.GetLastUsedPair();
var elem = SortingOptions.Where(i => i.Identifier == lastUsedOption.Identifier).ToList();
if (elem.Any())
{
SelectedItemIndex = SortingOptions.IndexOf(elem.FirstOrDefault());
}
// Enable selection
IsNavigationOpsAvailable = true;
}