Get your questions answered by LabVIEW developers.

[JRA]

The LabVIEW team at National Instruments is testing out podcasting as a potential technology for sharing their knowledge and expertise with the LabVIEW community. In a few weeks, we will hold a recorded discussion panel with three LabVIEW developers here at NI who will discuss LabVIEW program architecture. Based on their development of and with LabVIEW, they will share their thoughts and opinions in this area.

To make this discussion more valuable to everyone, we want to get questions from you. Post your questions and thoughts about LabVIEW program architecture in this thread: architectures you use, challenges you face in your designs, etc. (Please refrain from asking unrelated questions) This will provide us with a framework to build upon for our discussions and give you the opportunity to get your questions answered by the LabVIEW developers.

Once we have recorded the discussions, we will make them available on the web and post them here in the Forums. Happy wireworking!

[Todd_SD]

I've only been using LabVIEW for a year and half now, but I am extremely pleased with 'G' as a development language. Communicating with instruments and devices has been exceptionally easy and the event structure is a Godsend for my uses. I would like to commend the LabVIEW developers for that. Lately I have been very focused on User Interface development and I would like to hear from the developers what is planned to continue development in this area. I have only been developing for Windows at the moment, so I would love to see a palette to handle Windows specific things like system tray tools, right click context menus, and possibly tools to change the look of the window from the typical square. I have found ways to do most of these things with tools in development from OpenG.org or with CIN, but the code would be much more clear if it could be done in pure 'G' code. I'm not sure if this is the type of question you were looking for, but I thought I ask anyway.

[tst]

I don't have any questions at the moment, but I would like to suggest that you float this thread to the top of the board.

[James_R]

I don't know if this feature is in 7.1 or not but I would like the ability to coment out sections of code using case structures can get messy

another feature that might be handy might be a code window where the user can cut and paste a snippet of code and use it like a formula node (i know you can interface with dll and use cin)

I am fairly new to LV7.1 but is there a way to make our own express VI's


This is all I have so far


-James


ps thanks for the oppertunity to give feedback

[Chaos]

I also mirror Todd_SD's sentiments. It would be really nice to see true custom controls implemented in the future. As it is now we can only take an existing control and change its appearance >not< its functionality. This is something that, in any other language, is very easy to do.

IE try and develop a standard toolbar control...

[indian90]

I am trying to design a vi where a user selects an option for the name, and the file macthes the data from the array and then shows the matched name and the value of the name. In the attached vi, I have an array which consists of number of data classes with values attached to them. The user inputs his/her option for name. And the vi searches for it and displays the file. Can anyone help here...Thanks

[becktho]

Hi

There are two things, I'd like to know the following things:

1. In other IDEs exists the possibility to have a TODO-list. This means short notices in the program code (marked with a special tag) which then are displayed in a separate list. In this list the entries can be double-clicked and the IDE opens the corresponding file at the corresponding line. Of course it is possible to solve this with simple comments and then search for the text, but then I have to browse the search-window.
Is there something like this planned for future releases?

2. I also discussed the following point in the forums and already gave feedback (product suggestion) over NI-homepage. Is there a while-do loop in a future version of LabVIEW? For me this is a very useful loop-structure. Although it is possible to code the similar functionality with the existing while-loop, I'd like a loop which first tests some conditions and then executes or not, depending on the result.

3. I'd like an improved message-box. Similar to several OSs I'd like a message-box with an Icon. Yes, this can be done using Win-API calls, but these often cause problems. It would be great, if this could be avoided with a better LV message-box.

Thomas

Message Edited by becktho on 07-01-2005 04:02 PM

Message Edited by becktho on 07-01-2005 04:03 PM

[Kaustubh_vc]

Hi!

Its very nice. Plz give me the solution for the following problem --

Plz find the attached vi ( 1. main 2. Mouse over is sub vi of "main")

I want to make controls on my front panel mouse sensitive. I have one vi (Mouse over) which full fill my requirement. But when i call it as sub vi i will get mouse sensitivity only once. i.e when i call sub vi for the first time i will have no problem,  but when i came back to main vi and again enter to sub vi i lost control. vi gets hanged.

When i analyse this, i concluded that its problem of while loop switching. When i stop sub vi, while loop gets stoped, but when i call back again subvi, that while loop doesnt restart  again.

SO tell me how to restart while loop in program once it is stopped. Give me the solution.

Thanks

Kaustubh

VC (Pune)

INDIA

[MogaRaghu]

When dragging a wire to link to a node, why is  it that every conceivable crossing wire in the path flashes indicating readiness to accept the wire , however irrelevant it may be  ? And worse is the condition when a node meant to recieve only a boolean accepts a double and then calls a fault. Why not simply keep quite wothout  flashing when wire of different data approaches it ?

Raghunathan

[Olav]

Dear Sir,

I want to use basic spectra to fit the measured curve using the labview LM fit routine. As you will know, the basic routine parses a text formula with letters rather than matrices. My future formula will be non- linear, so I can't use the linear fit algorithm anymore to fit with my basic spectra (this worked fine up to now). Can you please give me a clue how to use the spectra in LM?

Kind regards,

Olav Kaspers