/// <summary>
/// This delagate is called when the view model is changed.
/// </summary>
/// <param name="pSender">The event sender.</param>
/// <param name="pEventArgs">The event arguments.</param>
private static void OnViewModelChanged(DependencyObject pSender, DependencyPropertyChangedEventArgs pEventArgs)
{
ExtendedListView lExtendedListView = pSender as ExtendedListView;
if (lExtendedListView != null)
{
// Unloading the old view model.
IRootHierarchicalItemViewModel lOldViewModel = pEventArgs.OldValue as IRootHierarchicalItemViewModel;
if (lOldViewModel != null)
{
// Unregistering from items modification events.
lOldViewModel.ItemViewModelsAdded -= lExtendedListView.OnItemViewModelsAdded;
lOldViewModel.ItemViewModelsRemoved -= lExtendedListView.OnItemViewModelsRemoved;
lOldViewModel.ItemViewModelMoved -= lExtendedListView.OnItemViewModelMoved;
// Initializing the view model.
lExtendedListView.DropChildrenItems(lOldViewModel, false);
}
// Loading the new view model.
IRootHierarchicalItemViewModel lNewViewModel = pEventArgs.NewValue as IRootHierarchicalItemViewModel;
if (lNewViewModel != null)
{
// Registering on items modification events.
lNewViewModel.ItemViewModelsAdded += lExtendedListView.OnItemViewModelsAdded;
lNewViewModel.ItemViewModelsRemoved += lExtendedListView.OnItemViewModelsRemoved;
lNewViewModel.ItemViewModelMoved += lExtendedListView.OnItemViewModelMoved;
// Loading the first level items.
lExtendedListView.LoadsChildrenItems(lNewViewModel);
}
}
}
/// <summary>
/// Initializes a new instance of the <see cref="ColumnResizeBehavior"/> class.
/// </summary>
/// <param name="pListView">The managed list view.</param>
public ColumnResizeBehavior(ExtendedListView pListView)
{
if (pListView == null)
{
throw new ArgumentNullException("pListView");
}
this.mVerticalScrollBarVisibility = ScrollBarVisibility.Auto;
this.mListView = pListView;
this.mListView.Loaded += new RoutedEventHandler(this.OnListViewLoaded);
this.mListView.Unloaded += new RoutedEventHandler(this.OnListViewUnloaded);
}
/// <summary>
/// Initializes a new instance of the <see cref="RowsCollection"/> class.
/// </summary>
/// <param name="pOwner">The collection owner.</param>
public RowsCollection(ExtendedListView pOwner)
{
this.mOwner = pOwner;
// Creating the source collection.
this.mSource = new ObservableCollection <IHierarchicalItemViewModel>();
this.mViewSource = new CollectionViewSource();
this.mViewSource.Source = this.mSource;
// Bind it the owner items source property.
Binding lItemsSourceBinding = new Binding();
lItemsSourceBinding.Source = this.mViewSource;
this.mOwner.SetBinding(ExtendedListView.ItemsSourceProperty, lItemsSourceBinding);
}
/// <summary>
/// Initializes a new instance of the <see cref="ExpandBehavior"/> class.
/// </summary>
/// <param name="pParent">The behavior's parent.</param>
public ExpandBehavior(ExtendedListView pParent)
{
this.mParent = pParent;
}
/// <summary>
/// Initializes a new instance of the <see cref="SelectionModel"/> class.
/// </summary>
/// <param name="pParent">The model parent.</param>
public SelectionModel(ExtendedListView pParent)
{
this.mParent = pParent;
this.mCanSelect = true;
this.mSelectedItemsViewModel = new ObservableCollection<IHierarchicalItemViewModel>();
}
/// <summary>
/// Initializes a new instance of the <see cref="SelectionBehavior"/> class.
/// </summary>
/// <param name="pParent">The behavior's parent.</param>
public SelectionBehavior(ExtendedListView pParent)
{
this.mParent = pParent;
}
/// <summary>
/// Called when the control template is applied.
/// </summary>
public override void OnApplyTemplate()
{
base.OnApplyTemplate();
// Getting the parts from the control template.
this.InnerListView = this.GetTemplateChild(PART_ListView) as ExtendedListView;
this.mDefaultMessage = this.GetTemplateChild(PART_DefaultMessage) as Label;
if ( (this.InnerListView == null)
|| (this.mDefaultMessage == null)
)
{
throw new Exception("TreeListView control template not correctly defined.");
}
IsParentTreeMultiColumnsBehavior.SetIsParentTreeMultiColumns(this, false);
// Loading the view model.
this.LoadViewModel();
// Applying the selection option.
this.InnerListView.SelectionModel.SelectionOption = this.mPendingSelectionOption;
// Registering on the collection changed event for the selected and checked items.
this.InnerListView.SelectionModel.SelectionChanged += this.OnInnerListViewSelectionChanged;
this.InnerListView.CheckModel.ItemsViewModelToggled += this.OnInnerListItemsViewModelToggled;
this.InnerListView.ItemViewModelsAdded += this.OnInnerListViewItemViewModelsAdded;
this.InnerListView.ItemViewModelsRemoved += this.OnInnerListViewItemViewModelsRemoved;
this.InnerListView.ItemViewModelDoubleClicked += this.OnInnerListViewItemViewModelDoubleClicked;
// Setting the columns.
TreeListViewColumnCollection lCollection = TreeListView.GetColumnsCollection(this) as TreeListViewColumnCollection;
if (lCollection != null && lCollection.Count > 0)
{
// Creating the grid.
ExtendedGridView lGridView = new ExtendedGridView(this.mResources, this.MultiColumnsItemContainerDefaultStyleKey);
foreach (TreeListViewColumn lColumn in lCollection)
{
if (lCollection[0] == lColumn)
{
lGridView.SetFirstColumn(lColumn);
}
else
{
lGridView.AddColumn(lColumn);
}
}
// Setting the grid view to the inner list.
this.InnerListView.View = lGridView;
IsParentTreeMultiColumnsBehavior.SetIsParentTreeMultiColumns(this, true);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="ExpandModel"/> class.
/// </summary>
/// <param name="pParent">The model parent.</param>
public ExpandModel(ExtendedListView pParent)
{
this.mParent = pParent;
}