tab control does not show up

[Greg_Shipley]

Hello, I am still using Labview V8.21 on XP.  I know, I know, should be using my 8.6 but do not have a DVD drive.

Anyway, I am trying to do some support on a VI originally written in V6.1 and updated to V7.1   The problem is, there is a tab control on the front panel that will not show up, it is on the block diagram, labview will not really find it, but thinks it is still there, the front panel is just blank and really big.  Looked all over, nothing on the front panel.  Any ideas why this would happen or how to get around rewritting the whole VI?  I doubt a rewrite will occur, as a company we have moved to .NET and the product will probably be either discontinued or redone in .NET if I cannot get a work around here.

thanks.

[battler.]

Try this:

Create property node from tab control block diagram terminal and set Visible property = True.

BTW don't "look all over" the front panel, double-click on the block diagram terminal to locate it.

[Greg_Shipley]

The Visible property node does nothing, I can make the label visible for the tab control.  When I try to find the control, Labview locates it with an empty dashed box.

Now what?  I can create a new tab control and place it on the VI but it will take a major redo to use it as I cannot just copy and replace the existing tab control for some reason.

[smercurio_fc]

If you right-click on the terminal on the block diagram do you see the menu option "Hide Control" or "Show Control"? If you see "Hide Control", then the control is visible. If you see "Show Control" then it's not. If it's visible someone may have accidentally (or perhaps intentionally) made it transparent. Use the Tools palette to get the coloring tool, pick a color and click where you think the control is. If that doesn't work it's possible you may have a corrupted control. If you post the VI someone else can try to look at it.

[Greg_Shipley]

cannot color the control or the VI to make it show up.  Here is a post, this is a big VI and alot of error will show up as I am not posting the whole thing, just the TL vi that has the tab control problem. 

This is one thing that made me leave Labview, all eggs are in the VI basket, if it fails, you are done, unlike .NET that you can open the source with a text editor if you have to.

[Peñata]

Hi Greg Shipley,

Are you referring to the tab control labeled Tab Control? If so, it is visible on the front panel. I am able to switch between the Log (light blue), Interval (green), INF (purple), Parameter (white), and Documentation/Reports (blue) tabs. Each tab has different graphs/information displayed on it. Are you unable to switch between the tabs? If so, manually change the mouse pointer to the Operate Value tool (the pointing hand) on the Tools Palette (View»Tools Palette) and then try to switch tabs.

Thank you for choosing National Instruments.

Aaron Pena

National Instruments

Applications Engineer

http://www.ni.com/support

[AnalogKid2DigitalMan]

I could not see it in 8.2. Right clicking the Tab on the BD and looking at properties, it appears that the height is 28575 and the width is 429494!

While I was not working on it in LabVIEW all by it's own generated an fpsane.cpp error.

-AK2DM

[Ben]

It opened OK in LV 2009.

Ben

[johnsold]

I think your tab control is corrupt.  Like AK2DM I find it very large.  Also its size changes in unpredictable ways when I try to grab a resize handle.

Lynn 

[Greg_Shipley]

do video card problem?  Or should I upgrade to V8.6 and see what happens?