Hi,

I know how to fix this BUT I don't know why I need to distribute this assembly when my project doesn't use an XtraTreeList anywhere that I know of. 

************** Exception Text **************
System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.IO.FileNotFoundException: Could not load file or assembly 'DevExpress.XtraTreeList.v8.2, Version=8.2.2.0, Culture=neutral, PublicKeyToken=9b171c9fd64da1d1' or one of its dependencies. The system cannot find the file specified.
File name: 'DevExpress.XtraTreeList.v8.2, Version=8.2.2.0, Culture=neutral, PublicKeyToken=9b171c9fd64da1d1'
   at DevExpress.XtraPrinting.Control.Native.NavigationController.InitializeDockPanel_Container(ControlContainer dockPanel_Container)
   at DockPanelController..ctor(PrintControl printControl, PrintingSystemCommand printingSystemCommand, PreviewStringId stringId, DockPanel savedParent)
   at DevExpress.XtraPrinting.Control.PrintControl..ctor()
   at DevExpress.XtraPrinting.Preview.PrintPreviewFormExBase.InitializeComponent()
   at DevExpress.XtraPrinting.Preview.PrintPreviewFormExBase..ctor()
   at DevExpress.XtraPrinting.Preview.PrintPreviewFormEx..ctor()
   at DevExpress.XtraPrinting.PrintingSystem.GetPreviewFormEx()
   at DevExpress.XtraPrinting.PrintingSystem.get_PreviewFormEx()
   at DevExpress.XtraPrinting.PrintingSystem.ShowPreview(UserLookAndFeel lookAndFeel)
   at DevExpress.XtraPrinting.LinkBase.ShowPreview(UserLookAndFeel lookAndFeel)

Hello Glen,

Sorry, if you have not got the answer, I can explain why. The XtraTreeList assembly is required to be redistributed along with your application since v2008 vol 2. This was done to fully support skins in the Document Map (Bookmarks) of the Print Preview. By the way, did adding the XtraTreeList assembly solve this issue in your project?

If I missed this important announcement then there's not much I can do but fall on my own sword.

If there was no announcement then I suggest you make one quickly.

I haven't looked in the past couple of days but this is not mentioned in your distribution documentation as far as printing pre-requisties is concerned.

I just deleted a lot of my whinging because I don't think it will make any difference anyhow.

Glen,

Yes, this breaking change was mentioned on the following page for the XtraPrinting and  XtraReports products:
Breaking Changes for v2008 vol.2 (UI controls)

Also, this change is reflected in our documentation:
Redistributable Assemblies (XtraPrinting)
Redistributable Assemblies (XtraReports)

We are sorry for this breaking change, but this was the only way to implement the new functionality. In any case, we suggest you refer to the Redistributable Assemblies documents for our products every time you upgrade to a new major version.