Thank you. I am aware that the dockmanager contain Load/Save for layout, however, due to the nature of my application, I only want to set the floating panels layout without changing the other elments.
I've seen that the XML contain the parameters extent and extentflayout which seems to be exactly the correct parameters I need. however, I could not find a way to Get/Set them - any suggestions?

Thank you, this covers what I was looking for.

Hello,

Thank you for the update. Looking into the API I don’t see extentflayout so these are something internal, not exposed for public use .

Although again you can still use the ActualWidth and ActualHeight property to set it back, its just you need to find the floating pane.

I tried this on button click in my previous sample and its working fine:

 private void Button_ClickSave(object sender, RoutedEventArgs e)
        {   
            foreach (SplitPane splitpane in this.xamDockManager1.Panes)
            {
                //var p = this.xamDockManager1.Panes[x];
                foreach (var pane in splitpane.Panes)
                {
                    if (pane is TabGroupPane)
                    {
                        var x = pane as TabGroupPane;
                        foreach (var y in x.Items)
                        {
                            ContentPane cp = null;

                            if(y is ContentPanePlaceholder)
                            {
                                cp = (y as ContentPanePlaceholder).Pane;
                            }
                            else if(y is ContentPane)
                            {
                                cp = y as ContentPane;
                            }
                            
                            if (cp != null && (cp.PaneLocation== PaneLocation.Floating || cp.PaneLocation == PaneLocation.FloatingOnly))
                            {
                               var width= cp.ActualWidth;
                               var height = cp.ActualHeight;
                            }
                        }
                        
                    }
                    else if (pane is ContentPane)
                    {
                        ContentPane cp = pane as ContentPane;
                        if (cp.PaneLocation == PaneLocation.Floating || cp.PaneLocation == PaneLocation.FloatingOnly)
                        {
                            var width = cp.ActualWidth;
                            var height = cp.ActualHeight;
                        }

                    }
                }
               
            }
           
    
            //using (FileStream fs = new FileStream("layout.xml", FileMode.Create, FileAccess.Write))
            //{
            //    this.xamDockManager1.SaveLayout(fs);
            //}

        }

 Regards,

Divya Jain