Sunday, December 6, 2015

Troubles

Eddie caused lot of troubles this weekend and then I found that battery level was too low! It was a shame and also a relief, because I thought that the control board is faulty again. Then the charger unit was broke and I built a temporary one using a LCD monitor power source. These were the engineering incidents.
 
I built a new serial port application. Now the serial interface is as a control in a form. That's way it used to be in old VB6. Then I got a problem when I tried to update fields on the form. I got error messages that controls cannot be updated from the different thread. I never had that kind of issue with VB6. Now I have to worry about threads. Threads are naturally basic stuff with multitasking, but I miss the old VB6. Anyway, after Googling I found a workaround. Basically a new thread must be created.
I was studying also ASP.NET databases. The new SQL Server Express 2014 has a new graphical  interface for creating queries like MS Access  has. In the old SQL Server 2008 the only way is  you have type queries with the query language.

The battle continues.

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