Save and load layout

[Nikolay]

I make a Docking class set with an overwritten behavior.
I save the layout elements.
I make simple heirs of the elements set for docking:

public class TSplitContainer : RadSplitContainer { }
public class TPaneGroup : RadPaneGroup { }
public class TPane : RadPane { }

The RadDocking class has special properties for getting child elements:

d = new TDocking();
//d.CurrentSaveLoadLayoutHelper = new TDefaultSaveLoadLayoutHelper(d);
d.GeneratedItemsFactory = new TDefaultGeneratedItemsFactory();

now I add a special method for creating child elements upon loading:

public class TDocking: RadDocking
{

   protected override void OnElementLoading(LayoutSerializationLoadingEventArgs args)

   {

System.Windows.DependencyObject res = args.AffectedElement;

if (res == null)

{

string st = args.AffectedElementSerializationTag;

if (st == typeof(TDocking).Name)

args.SetAffectedElement(this);

if (st == typeof(TDocumentPane).Name)

args.SetAffectedElement(new TDocumentPane());

if (st == typeof(TPaneGroup).Name)

args.SetAffectedElement(GeneratedItemsFactory.CreatePaneGroup());

if (st == typeof(TSplitContainer).Name)

args.SetAffectedElement(GeneratedItemsFactory.CreateSplitContainer());

}

System.Diagnostics.Debug.WriteLine("OnElementLoading: serializationTag={0}; res={1}", args.AffectedElementSerializationTag, res);

base.OnElementLoading(args);

   }

}

a class for generating child elements.

  

public class TDefaultGeneratedItemsFactory: DefaultGeneratedItemsFactory
{
public override Telerik.Windows.Controls.RadPaneGroup CreatePaneGroup()
{
return new TPaneGroup();
}
public override Telerik.Windows.Controls.RadSplitContainer CreateSplitContainer()
{
return new TSplitContainer();
}
public override ToolWindow CreateToolWindow()
{
return base.CreateToolWindow();
}
}

I make a test method for checking:

d = new TDocking();
//d.CurrentSaveLoadLayoutHelper = new TDefaultSaveLoadLayoutHelper(d);
d.GeneratedItemsFactory = new TDefaultGeneratedItemsFactory();

TSplitContainer sc = new TSplitContainer();
d.Items.Add(sc);
TDocking.SetSerializationTag(sc, "TSplitContainer");
sc.InitialPosition = Telerik.Windows.Controls.Docking.DockState.DockedRight;

TPaneGroup pg = new TPaneGroup();
TDocking.SetSerializationTag(pg, "TPaneGroup");
sc.Items.Add(pg);

TPane pane = new TPane();
TDocking.SetSerializationTag(pane, "TPane");
pg.Items.Add(pane);
d1.LoadLayout(xml);

and now upon calling the LoadLayout method we get the following exception:
   at Telerik.Windows.Controls.Docking.DockingLayoutFactory.GetElementByTypeName(String elementTypeName)
   at Telerik.Windows.Controls.Docking.DockingLayoutFactory.LoadSplitContainer(XmlReader reader)
   at Telerik.Windows.Controls.Docking.DockingLayoutFactory.LoadDocking(XmlReader reader)
   at Telerik.Windows.Controls.RadDocking.LoadLayout(Stream source, Boolean raiseEventsIfNoSerializationTag)
   at Telerik.Windows.Controls.RadDocking.LoadLayout(Stream source)
   at RadarSoft.Report.Wpf.Viewer.TDocking.LoadLayout(String source) in D:\Report\RadarSoft.Report.WPF.Viewer\Controls\TelerikDubles\TDocking.cs:line 39
   at RadarSoft.Report.QuickApp.MainWindow.btnResult_Click(Object sender, RoutedEventArgs e)

now what do we see in the reflector?

public DependencyObject LoadSplitItem(XmlReader reader)
{
if (reader.Name == "RadSplitContainer")
{
return this.LoadSplitContainer(reader);
}
if (reader.Name == "RadPaneGroup")
{
return this.LoadPaneGroup(reader);
}
return null;
}

So, why go into all this trouble of creating child elements, if they are loaded in the splitter like this:

and how am I to cure this now???

p.s. saved xml file:
<?xml version="1.0" encoding="utf-8"?><TDocking><SplitContainers><TSplitContainer SerializationTag="TSplitContainer" Dock="DockedRight" Width="240"><Items><TPaneGroup SerializationTag="TPaneGroup" SelectedIndex="0"><Items><TPane SerializationTag="TPane" IsDockable="True" /></Items></TPaneGroup></Items></TSplitContainer></SplitContainers></TDocking>

[George]

Hello Nikolay,

We are aware of this issue. We will fix it in one of our future releases. Sorry for any inconvenience caused.

Greetings,
George
the Telerik team

[Ryan]

I assume this hasn't been fixed yet? I'm suffering from the same issue, wanting to override some methods in RadPaneGroup with a custom class and having the Save/Load layout break because of it.

[Yana]

Hi Ryan,

The issue is still not fixed, we're sorry for the inconvenience.

Regards,
Yana
the Telerik team