protected override void InitializeScrollBehaviorObserver() { // We implement Scroll logic this way because the internal // control in charge of handling scrolling is disposed when // DropDownStyle is changed and is Expanded/Collapsed if (observer != null && (ListBoxControl == null || ListBoxControl != listControl)) { observer.ScrollPatternSupportChanged -= OnScrollPatternSupportChanged; observer.Terminate(); SetBehavior(ScrollPatternIdentifiers.Pattern, null); } if (ListBoxControl != null && ListBoxControl != listControl) { if (ListBoxControl != null) { observer = new ScrollBehaviorObserver(this, null, VerticalScrollBar); observer.ScrollPatternSupportChanged += OnScrollPatternSupportChanged; observer.Initialize(); UpdateScrollBehavior(observer); ListBoxControl.Disposed += delegate(object obj, EventArgs args) { observer.Terminate(); SetBehavior(ScrollPatternIdentifiers.Pattern, null); listControl = null; }; } listControl = ListBoxControl; } }
protected virtual void InitializeScrollBehaviorObserver() { // Updates Navigation and sets/unsets Scroll Pattern observer = new ScrollBehaviorObserver(this, HorizontalScrollBar, VerticalScrollBar); observer.ScrollPatternSupportChanged += OnScrollPatternSupportChanged; observer.Initialize(); UpdateScrollBehavior(); }
public override void InitializeChildControlStructure () { base.InitializeChildControlStructure (); observer = new ScrollBehaviorObserver ( this, scrollableControl.hscrollbar, scrollableControl.vscrollbar); observer.ScrollPatternSupportChanged += OnScrollPatternSupportChanged; observer.Initialize (); UpdateScrollBehavior (); }
public override void InitializeChildControlStructure() { base.InitializeChildControlStructure(); observer = new ScrollBehaviorObserver( this, scrollableControl.hscrollbar, scrollableControl.vscrollbar); observer.ScrollPatternSupportChanged += OnScrollPatternSupportChanged; observer.Initialize(); UpdateScrollBehavior(); }
protected virtual void InitializeScrollBehaviorObserver () { // Updates Navigation and sets/unsets Scroll Pattern observer = new ScrollBehaviorObserver (this, HorizontalScrollBar, VerticalScrollBar); observer.ScrollPatternSupportChanged += OnScrollPatternSupportChanged; observer.Initialize (); UpdateScrollBehavior (); }
protected override void InitializeScrollBehaviorObserver () { // We implement Scroll logic this way because the internal // control in charge of handling scrolling is disposed when // DropDownStyle is changed and is Expanded/Collapsed if (observer != null && (ListBoxControl == null || ListBoxControl != listControl)) { observer.ScrollPatternSupportChanged -= OnScrollPatternSupportChanged; observer.Terminate (); SetBehavior (ScrollPatternIdentifiers.Pattern, null); } if (ListBoxControl != null && ListBoxControl != listControl) { if (ListBoxControl != null) { observer = new ScrollBehaviorObserver (this, null, VerticalScrollBar); observer.ScrollPatternSupportChanged += OnScrollPatternSupportChanged; observer.Initialize (); UpdateScrollBehavior (observer); ListBoxControl.Disposed += delegate (object obj, EventArgs args) { observer.Terminate (); SetBehavior (ScrollPatternIdentifiers.Pattern, null); listControl = null; }; } listControl = ListBoxControl; } }