/// <summary>
/// When overridden in a derived class, is invoked whenever application code or internal processes (such as a rebuilding layout pass) call <see cref="M:System.Windows.Controls.Control.ApplyTemplate"/>. In simplest terms, this means the method is called just before a UI element displays in an application. For more information, see Remarks.
/// </summary>
public override void OnApplyTemplate()
{
base.OnApplyTemplate();
_resultsGrid = GetTemplateChild("PART_ResultsGrid") as RadGridView;
_popup = GetTemplateChild("PART_Popup") as Popup;
_searchTextBox = GetTemplateChild("PART_SearchTextBox") as TextBox;
_popupTarget = GetTemplateChild("PART_PopupTarget") as Grid;
_dropDownButton = GetTemplateChild("Part_DropDown") as RadToggleButton;
_resultsGrid.SelectionChanged += ResultsGridSelectionChanged;
_searchTextBox.GotFocus += SearchTextBox_GotFocus;
_searchTextBox.LostFocus += SearchTextBox_LostFocus;
_searchTextBox.KeyDown += SearchTextBox_KeyDown;
_popup.Opened += Popup_Opened;
RadDragAndDropManager.AddDragQueryHandler(_resultsGrid, OnDragQuery);
UpdatePopupAlignment();
UpdateRowStyle();
if (!string.IsNullOrEmpty(QuickSearchText))
{
VisualStateManager.GoToState(this, "WatermarkInvisible", true);
}
VisualStateManager.GoToState(this, "KeywordSearch", true);
BindingValidationError += (s, e) => UpdateValidationState();
UpdateValidationState();
}
private void SubscribeToDragDropEvents()
{
RadDragAndDropManager.AddDropQueryHandler(this.AssociatedObject, OnDropQuery);
RadDragAndDropManager.AddDropInfoHandler(this.AssociatedObject, OnDropInfo);
RadDragAndDropManager.AddDragQueryHandler(this.AssociatedObject, OnDragQuery);
RadDragAndDropManager.AddDragInfoHandler(this.AssociatedObject, OnDragInfo);
}
/// <summary>
/// Initializes a new instance of the <see cref="AppointmentItemsControl"/> class.
/// </summary>
public AppointmentItemsControl()
{
this.ResizeManager = new AppointmentResizeManager(this);
this.SelectedAppointments = new SelectedAppointmentCollection();
RadDragAndDropManager.AddDragQueryHandler(this, this.OnAppointmentItemsControlDragQuery);
}
/// <summary>
/// Called after the behavior is attached to an AssociatedObject.
/// </summary>
protected override void OnAttached()
{
if (AllowDrag)
{
RadDragAndDropManager.SetAllowDrag(AssociatedObject, true);
RadDragAndDropManager.AddDragQueryHandler(AssociatedObject, OnDragQuery);
RadDragAndDropManager.AddDragInfoHandler(AssociatedObject, OnDragInfo);
}
}
private void ItemsControl_Loaded(object sender, RoutedEventArgs e)
{
RadDragAndDropManager.RemoveDragQueryHandler(sender as DependencyObject, Video_DragQuery);
RadDragAndDropManager.AddDragQueryHandler(sender as DependencyObject, Video_DragQuery);
}