I'm use DevExpress DXperience and I created an MDI application that contains MdiChild forms.

1) I set in the Program.cs file "DevExpress Dark Style" as the defaut skin and it worked, also for child forms, the only problem that the skin of the title bar doesn't change. I tried this code `Form.LookAndFeel = "DevExpress Dark Style";` but it gives me this error: 

> 
> Property or indexer 'LookAndFeel' cannot be assigned to -- it is read only.
> 
> 
> 

The same problem when I choose to change the skin from `skinsRibbonPageGroup`.

2) When I run an MDI child form, it should show me a `ScrollBar` when I change its dimensions, but this doesn't happen.

![enter image description here](https://i.stack.imgur.com/08rjO.png)