/// <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);
}
}