/// <summary> /// Handles the Loaded event of this control. /// </summary> /// <param name="sender">The source of the event.</param> /// <param name="e">The <see cref="RoutedEventArgs"/> instance containing the event data.</param> private void This_Loaded(object sender, RoutedEventArgs e) { if (!System.ComponentModel.DesignerProperties.GetIsInDesignMode(this)) { this.NodeViewer = LayoutHelper.FindLogicalParent <UcNodeViewer>(this, true); if (this.NodeViewer == null) { this.NodeViewer = LayoutHelper.FindVisualParent <UcNodeViewer>(this, true); } if (this.NodeViewer != null && !this.IsPreview) { this.treeDesigner = LayoutHelper.FindLogicalParent <UcTreeDesigner>(this.NodeViewer, true); if (this.treeDesigner != null) { this.treeDesigner.RegisterIOHandle(this); DisposablesHandler.Instance.AddDisposeConnection(this, PropertyChangedHandle.GetDistinctInstance(this.treeDesigner, "ConnectingIOHandle", this.OnTreeDesignerConnectingIOHandleChanged)); } DisposablesHandler.Instance.AddDisposeConnection(this, PropertyChangedHandle.GetDistinctInstance(this.NodeViewer, "IsSelected", this.OnNodeViewerIsSelectedChanged)); } } LoadedCompletely = true; }
/// <summary> /// Property Changed Callback method of the IsSelected Dependency Property. /// </summary> /// <param name="sender">The instance of the class that had the IsSelected property changed.</param> /// <param name="e">The <see cref="System.Windows.DependencyPropertyChangedEventArgs"/> instance containing the event data.</param> private static void OnIsSelectedChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e) { UcNodeViewer subject = (UcNodeViewer)sender; bool newValue = (bool)e.NewValue; bool oldValue = (bool)e.OldValue; if (newValue) { UcTreeDesigner treeDesigner = LayoutHelper.FindLogicalParent <UcTreeDesigner>(subject, true); if (treeDesigner != null) { treeDesigner.onNodeViewerSelected(subject); } } }