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BOOK: Stephens' Visual Basic Programming 24-Hour Trainer
This is the forum to discuss the Wrox book Stephens' Visual Basic Programming 24-Hour Trainer by Rod Stephens; ISBN: 978-0-470-94335-9
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Old July 21st, 2014, 01:39 PM
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Default Changing data connection slows down the application

Hi, I have a weird situation and I spent couple of days figuring out where the problem is and no luck! Here it is: I created a database application using the entity framework data model (connected to a sql server database on my desktop) and it works perfectly. Now, I am planning to deploy it so other people can use it too, so I changed the data model connection to a database on the server with different credentials. What happened after this change is that everything extremely slowed down. The query from the database itself is not much longer, but the operations on all the controls on my form are way longer (some of them are not even connected to the data model).

Could you please point me to the right direction?

Old July 21st, 2014, 04:12 PM
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Sorry but I haven't heard of anything like that happening. Right now you're trying to run the application from your computer but with the remote database, right?

Does it take longer the first time it loads and the performance improves during subsequent operations? That might indicate you're losing a little extra time setting up the connection but after that things are better.

If that's not the case, I would normally suspect network latency. But if you're right that the queries return quickly and it's just the controls, I'm not sure what it could be.

You might need to dig into the automatically-generated EF code to see if it's doing something strange.

Sorry I can't be more help.

Rod Stephens, Microsoft MVP

Essential Algorithms: A Practical Approach to Computer Algorithms

(Please post reviews at Amazon or wherever you shop!)
Old July 22nd, 2014, 11:42 AM
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Thanks for your reply. I'll try to look into the EF code and will update it here if I found anything.

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