/// <summary>
/// event from thumbnail list to swap out selected tech panel
/// </summary>
/// <param name="sender">sender of the event</param>
/// <param name="e">event parameter</param>
private void OnSelectionChanged(object sender, SelectionChangedEventArgs e)
{
// ensure the tech is no longer parented and selected property is false
if (this.lastSelectedTech != null)
{
var parent = this.lastSelectedTech.DXPanel.Parent as Panel;
if (parent != null)
{
parent.Children.Remove(this.lastSelectedTech.DXPanel);
}
else
{
var border = this.lastSelectedTech.DXPanel.Parent as Border;
border.Child = null;
}
// trigger the property change
this.lastSelectedTech.IsSelected = false;
}
DXSwapPanel tech = Thumbnails.SelectedItem as DXSwapPanel;
if (tech != null)
{
// trigger the property change
tech.IsSelected = true;
// parent the selected control to the main UI
var parent = tech.DXPanel.Parent as Panel;
if (parent != null)
{
parent.Children.Remove(tech.DXPanel);
}
else
{
var border = tech.DXPanel.Parent as Border;
if (border != null)
{
border.Child = null;
}
}
// parent the panel to large view
if (DXSwapPanel.Type.Tech == tech.PanelType)
{
TechPreview.Child = tech.DXPanel;
}
}
// track this as the last selected item
if (tech != null)
{
this.lastSelectedTech = tech;
}
else
{
this.Thumbnails.SelectedIndex = this.lastSelectedTechIndex;
}
}
/// <summary>
/// handles data context changes
/// </summary>
/// <param name="sender">sender of the event</param>
/// <param name="args">passed parameter values for the event</param>
private void OnDataContextChanged(FrameworkElement sender, DataContextChangedEventArgs args)
{
DXSwapPanel panel = args.NewValue as DXSwapPanel;
if (this.swapPanel != panel)
{
// unsubscribe to previous event changes
if (panel != null && this.swapPanel != null)
{
this.swapPanel.PropertyChanged -= this.OnPropertyChanged;
}
this.swapPanel = panel;
// subscribe to the n
if (this.swapPanel != null)
{
this.swapPanel.PropertyChanged += this.OnPropertyChanged;
}
if (!this.swapPanel.IsSelected)
{
// ensure control is not parented
var parent = this.swapPanel.DXPanel.Parent as Panel;
if (parent != null)
{
parent.Children.Remove(this.swapPanel.DXPanel);
}
else
{
var border = this.swapPanel.DXPanel.Parent as Border;
if (border != null)
{
border.Child = null;
}
}
ParentGrid.Children.Add(this.swapPanel.DXPanel);
}
}
}
