I dropped a DataGridView onto the form and disconnected the DevEx grid from the main BBS (I left the two repository BBSs connected). I connected the main BBS to the DataGridView. When closing the form, I got the same error. So, I deleted all of the BBSs. Ran the form, closed it and received no error. Then, I added a new BBS to the form and wired it to the DataGridView. I ran the app, opened the form, saw the data in the grid, then closed the form. No error! I then wired only the main BBS to the DevEx Grid. When closing the window, it generated the same error. So, the combination of the DevEx grid (9.1.5) and the BBS (versions 1.6.6, 1.6.7 and 1.7.0) makes the window fail on closing. The dispose method...inserting my guesswork here...seems to be trying to get rid of objects that may have already been dumped via the DevEx grid disposal process.



Thoughts?

I attempted to recreate the error for you in a sample application. The app that I created was a VB app. I am not getting the same error (although, I forgot to fill the BO). Of course, we are not dealing with apples and apples, so I am going to create a C# app, instead. Stand by.

The C# app sample is complete. There are no errors in that sample app....so, I am totally vexed and befuddled. What do I do, now?

References...how do I cleanup the references? I attached a window shot of the Add References for a project. Two of the references I need in the project are version 1.7.0 but the other two are 1.6.0. Ugh! I assume that is not correct.



I have uninstalled and reinstalled so many times. What is my best path for fixing this issue?

Attached are two assemblies and their version tabs. Is the business.dll supposed to have an assembly version of 1.6?

When you installed SF 1.7.0, it did not clear out all of the 1.6.0 assemblies (which can be caused by several things). Before you get much deeper, manually remove any 1.6.0 references then reload the 1.7.0 build. Make sure that all of your files get updated to the 1.7.0 version otherwise you will have other weirdness.



Second, download the SF source code, build it in debug mode, which should also update your GAC references. THEN, get out of VS. Open VS back up and you should have SF DLLs in debug mode which will allow you to debug and break on any exception allowing you to trace and see where the point of failure is, look at a stack trace, etc.



I really think that you are dealing with an issue within your code. For example, something is causing the grid to re-evaluate the bound data source which is causing the error.



First, before you go crazy, just override the OnFormClosing method of the form, and manually remove the data source form the grid:







If you are using VB.NET then replace the null with Nothing. That should prevent anything from trying to evaluate the BBS on the form close.

So I go to uninstall SF and start over (again) and I get this...see attachment.

Where are you getting this? Most likely you are just not getting all of the assemblies updated into the GAC and within the ProgramFiles\Common Files\MicroFour\StrataFrame folders. Make sure you have permissions to update and that nothing is in use when you load the assemblies.

You incremented the assembly version this release, not just the file version?

I hope not.

Keith Chisarik

Hi SF Team,

I am getting the same error when closing one of my forms in an application which has been working for months.  I am not using a grid. I am using a form with combination of Strataframe DevEx controls bound to BO and the Strataframe Listview that I am filling using the PopulationDataSourceSettings properties.  In fact, I had 2 BBS objects on the form I was not using.  So I deleted one of them.  After that the problem went away.  Obviously, I am not sure why.

I thought this feedback might help.

Thanks,

Jeff