event when deselect control?

[Houmoller]

Hello Lava-people

Is it possible to have labview generate an event when a control is deselected?

 

I have a search bar in my application. When the user selects the string-control, a connection to a database is established. When the user is done searching the database, and selects a new control, I would like to destroy the reference to the database thus freeing up the database.

 

Is this possible?

 

Hope you can help me.

 

/Jørgen 

[Antoine Chalons]

Hi,

 

I don't know of any "direct solution" for that, I think you have 2 options :

- keep checking if that string control has the focus (using a property node on that string)

- keep checking the panel's property called "Text Focus", it will return the label (name) of the control that will receive the keyboard strokes

 

but both these options need to be placed in a parallel loop that will run at a certain rate.

 

hope this helps

Edited November 19, 2013 by Antoine Châlons

[hooovahh]

How about keeping track of which database connections have been made.  Then when a Mouse Down event happens on the string control disconnect any database connections that are open.  If none are open then do nothing.  If one was open from the last session then close it.