TreeControl: Is rapid methods of population and the update?

'Hi,

 

As many of you already know, the TreeControl in LabVIEW performs poorly when it comes to dealing with thousands of articles.

 

For those who are a little used software in some corners of the automotive industry, I would like to create an application that mimics the spy vehicle monitoring window and so I need to have a tree that is quite sensitive.

 

Basically I have a reception RX Analyzer CAN PEUT managers, these executives are divided into signals

 

Format

-DateTime; Name of the image; Content of the framework (HEX); Vacuum (node: level 1 of the hierarchy)

-Empty; Name of the signal; Value of the signal; Unit (node: level 2 of the hierarchy)

-- ...

 

-Chassis 001; 0 12345678 x;

-Signal 11;  ...

-Signal 12;  ...

-Signal 13;  ...

...

-Signal 2F;

..

-Framework FFF; 0 12345678 x;

-- ...

 

 

I know many who have tried to solve this problem, but seems it is pretty a pain to get decent performance when dealing with thousands of articles.

 

All simply by deferring updates on the façade while adding nodes, use the method to add several items to the end (Incidentally, I strongly suspect that there simply a report on the TreeControl, cause performance with two meanings seem pretty similar).

 

In any case, two of these solutions are not only effective CPU... In addition, I also tried to play with asynchronous display, but overall, nothing is really done.

 

Any idea to add items and update values (approximately every 10 ms) on such a broad set of data (thousands of items)?

 

Please find attached with a sample only the nodes of level 1.

 

References:

- https://decibel.ni.com/content/docs/DOC-4519

- http://forums.ni.com/t5/LabVIEW-Idea-Exchange/Improve-Tree-Control-Performance/idi-p/1067286

- http://forums.ni.com/t5/LabVIEW/Tree-control-best-fast-way-to-initialize/td-p/2571327

"

There are update reporter, property of the Group of experts that you can set to true prior to several updates command and then it back after. But it's not not going give you sub speed of 10ms. You will need to make some smart update only updates the part that is currently visible to the user and adding elements as the user develops tree leaves or scrolled around. Thousends of items every 10 ms update will NOT work in any UI widget library I know.

Tags: NI Software

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