How to open a VI-frontpanel by clicking a controlbutton

[JefS]

Hello

Since two weeks,I'm new at LV but I have already a big project to make for my school thesis. There are already problems but I want to solve them step by step.

But, to proceed, I have to sove one big bottleneck:

problem: I have to create a program that is able to calculate a waterpumpefficiëncy, by measuring the pressure with a sensor PTX1400 and the flow, with a PT878. They are connected to the PC with a DAQ ENET9219card. The power is measured with a FLUKE434. All connections work good but what I want is next:

Is it possible to create in the frontpanel a menu with the buttons (NEW MEASUREMENT) where you first have to say which pump it is and its characteristics and a button (OPEN SAVED MEASUREMENT? I think I have to work with two different subVI's that have to be opened. Or is there a possibility to open two new frontpanels in the current VI which can be activated by making your choise (new measurement or open saved measurement)?

I really appreciate your help.

kind regards, Jef

PS: My English is not great but I hope you 'understand' my question.

[ABCPrograms]

I would create two VI's

NEW MEAS : which has the property "open front panel when opened", which allows you to say which pump it is and its characteristics 

OPEN : which has the property "open front panel when opened", which gives you the possibility to open a saved measurement

YOu don't have to do anything programmatically to open the front panels of the two VI's when hitting the buttons.

Just use a Event structure and place the subVI's you've created in the correct Event.  When "open front panel when opened" is set to TRUE, they will open up automatically

[JefS]

Bjorn

thanks for the information, I think it will be usefull. Though I still have some questions. I've search more than an hour to find property "open front panel when opened" but till now, no success.

And second, the event structure, which you mentioned didn't existed in the execution control menu..

tnx

[ABCPrograms]

1) VI Properties => more info can be found here

2) More about event structures can be found here but is NOT included in LabVIEW base