Need help from fellow programmer (1 Viewer)

[Inker]

I just cannot figure this out:

Take the following code:

GUIDialogYesNo dlgYesNo = (GUIDialogYesNo)GUIWindowManager.GetWindow((int)GUIWindow.Window.WINDOW_DIALOG_YES_NO);

throws InvalidCastException telling me:

Das Objekt des Typs MediaPortal.Dialogs.GUIDialogYesNo kann nicht in Typ MediaPortal.Dialogs.GUIDialogYesNo umgewandelt werden.

Yeah.......right. If I do:

GUIDialogYesNo dlgYesNo = GUIWindowManager.GetWindow((int)GUIWindow.Window.WINDOW_DIALOG_YES_NO) as GUIDialogYesNo;

then dlgYesNo == null.....because again it can't cast.

GUIDialogYesNo dlgYesNo = new GUIDialogYesNo(); works, but I cannot use that window as it throws a nullreference exception as soon as I do doModul

GUIWindow wind = GUIWindowManager.GetWindow((int)GUIWindow.Window.WINDOW_DIALOG_YES_NO);
also works, because no cast is involved.

Now, GetType().Fullname both return MediaPortal.Dialogs.GUIDialogYesNo
GetType().GUID both return the exact same value too
for new GUIDialogYesNo() and GUIWindowManager.GetWindow((int)GUIWindow.Window.WINDOW_DIALOG_YES_NO)

I am compiling against the exact same Dialogs.dll as MP is loading at runtime.

It also happens with

GUIDialogMenu dlg = (GUIDialogMenu)GUIWindowManager.GetWindow((int)GUIWindow.Window.WINDOW_DIALOG_MENU);

but there I can go the route of:

IDialogbox dlg = (IDialogbox)GUIWindowManager.GetWindow((int)GUIWindow.Window.WINDOW_DIALOG_MENU);

unfortunatly guidialogyesno does not implement such an interface.

I guess the question is.....what can cause a type to be uncastable to itself?

It used to always work fine, but suddently stopped, unfortunatly I don't know what I changed or even exactly when it occured.

 

[chrholm]

I have very little experience with .NET, but I have seen very similar things in Java. It is always caused by the class being loaded twice by different classloaders. I'm not sure if .NET have a similar concept, but I would look duplicate entries of the class in question. Maybes its being loaded from two different places?

 

[Inker]

Thnx, do you know how I would go about checking this, and then how to prevent it? All I do is add a reference to Dialogs.dll during compiletime.

 

[G.B. Wolf]

Hmm... strange... have you tried just:

GUIDialogYesNo dlgYesNo = GUIWindowManager.GetWindow((int)GUIWindow.Window.WINDOW_DIALOG_YES_NO);

So just dropping the cast?

 

[patrick]

I just cannot figure this out:

I cannot reproduce this.

private build of MP with SVN 15Mar2008
private build if MP-TVSeries SVN 15Mar2008
Monochrome skin from MP downloads (v1.6 10Mar2008)

I uncommented most of your code for the YesNo dialog in your "Ask user to Resume" put in in a try/catch to check any errors but got none

I did not try other skins as I did not know which one you use or even support the plugin
Also could not find just the TVSeries skin files to download for skins.
Did not look very hard though


Code I used below, SS attached.

                #region Ask user to Resume
                if (timeMovieStopped > 0)
                {
                   try
                   {
                      GUIDialogYesNo dlgYesNo = (GUIDialogYesNo)GUIWindowManager.GetWindow((int)GUIWindow.Window.WINDOW_DIALOG_YES_NO);
                      //sender.YesNoOkDialog(new WindowPlugins.GUITVSeries.Feedback.ChooseFromYesNoDescriptor());
                      if (null != dlgYesNo)
                      {
                         dlgYesNo.SetHeading(GUILocalizeStrings.Get(900)); //resume movie?
                         dlgYesNo.SetLine(1, m_currentEpisode.onlineEpisode.CompleteTitle);
                         dlgYesNo.SetLine(2, GUILocalizeStrings.Get(936) + " " + Utils.SecondsToHMSString(timeMovieStopped));
                         dlgYesNo.SetDefaultToYes(true);
                         dlgYesNo.DoModal(GUIWindowManager.ActiveWindow);
                         if (!dlgYesNo.IsConfirmed) // reset resume data in DB
                         {
                            timeMovieStopped = 0;
                            m_currentEpisode[DBEpisode.cStopTime] = timeMovieStopped;
                            m_currentEpisode.Commit();
                         }
                      }
                   }
                   catch (Exception exc)
                   {
                      MPTVSeriesLog.Write("TVSeriesPlugin.VideoHandler.ResumeOrPlay()\r\n" + exc.ToString());
                      MPTVSeriesLog.Write("TVSeriesPlugin.VideoHandler.ResumeOrPlay()\r\n" + exc.InnerException.ToString());
                      MPTVSeriesLog.Write("TVSeriesPlugin.VideoHandler.ResumeOrPlay()\r\n" + exc.StackTrace.ToString());
                   }
                }
                #endregion

HTH,
patrick

 

[Inker]

Interesting patrick, I'll need to try again, but I tried with two different mp svn's to make sure it wasnt that. Anyways thnx a ton for trying and letting me know, I'll let you know if it works for me too


PS: Psycho Reptile seems to be a really grateful guy

 

[Psycho Reptile]

Just wanna show appreciation to any devs helping out with any part of MP, we need you all

 

[James]

Hi Inker,

I think your problem is that you have two copies of the same DLL. One is being used to create this object and the second here to try and access it.

If this is true. Then .NET thinks they are different objects even if the name is the same.

Check that there is only one DLL and make sure it is in a search path accessable by all.

/James

 

[Inker]

Hey James,

I think you mean like chrholm said, and it makes sense to me, but I don't really know what to do about it or even how to check, on the other hand I must admit I had very limited time since the weekend so it's not like I spend a great amount of time looking into it.

Just to help me understand this two dll thing, is this even a compile-time thingy (as in I'm referencing the dll twice somehow) or is it something that happens during runtime? Sorry, but I have no experience with that kinda thing.

 

[patrick]

Just to help me understand this two dll thing

I think James and chrholm are correct.

Check to make sure you do not have a copy of the Dialogs.dll file in both the MP folder AND the MP plugins\windows folder.
(Should only be in the plugins\windows folder)

I just "copied" to the MP folder to test:

System.InvalidCastException: Unable to cast object of type 'MediaPortal.Dialogs.GUIDialogYesNo' to type 'MediaPortal.Dialogs.GUIDialogYesNo'.

HTH,
patrick