SQL Express Goes Out To Lunch In Visual Studio After Failing To Fill A DataSet

I have an off the wall situation that occurs when I try to fill a dataset that has already been filled with data. The issue with the DataSet in and of itself was a mistake I made and is not relevant to this forum.

What would appear to be relevant though, is the fact that after the exception was caught, I could not longer query data from the SQL Express database that was included in my project. In other words, when I tried to view the data in the IDE by selecting "Show Table Data," I received a message telling me that the query was running and eventually it timed out.

To fix the problem in my application, I obviously eliminated the bad code. But to be able to query the database again, I had to physically restart my computer (yes, I probably could have restarted the service, I know).

So my question is, has anyone run into this phenomenon before? If so, is there a way to prevent it other than the obvious, which is to clear the DataTables in my DataSet before filling them?

It's not that big a deal, but it is kind of a pain in the rear to have to restart everything because of a stupid coding mistake on the client side while I'm developing an app.