/// <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; }
private void OnDefferingPropertyChangeOcurred(PropertyChangedCallbackArgs args) { if (this.deferringPropertyChangeCallback == null || this.deferringPropertyChangeCallback(args)) { args.Handle.Dispose(); this.deferringPropertyChangeHandle = null; this.deferringPropertyChangeCallback = null; this.InitializeAfterDeferrence(); } }
public void DeferInitialization(Binding binding, Func <PropertyChangedCallbackArgs, bool> deferringPropertyChangeCallback = null) { if (binding == null) { throw new ArgumentNullException("binding"); } if (!(this.initialized || this.initializationDeferred)) { this.initializationDeferred = true; this.deferringPropertyChangeCallback = deferringPropertyChangeCallback; this.deferringPropertyChangeHandle = PropertyChangedHandle.GetDistinctInstance(binding, this.OnDefferingPropertyChangeOcurred); } }