Add an Option to Display Arrays in a Single Line in the Debug Window

[kamoshida]

The new debug window in LabVIEW 2025 Q3 automatically expands arrays to show all elements across multiple lines. While this full view can be helpful, it often becomes disruptive during debugging.

I have attached a video that shows a side-by-side comparison. The left side is LabVIEW 2025 Q3, and the right side is LabVIEW 2024 Q3.

As you can see, when an array contains many elements, the new multi-line display consumes a large amount of vertical space on the block diagram. This pushes other probes and data displays down, causing their positions to shift and making it difficult to monitor them. There are many cases where I only need to see that the array contains data, not every single element, and I would prefer the more compact, single-line view.

I propose adding a feature to allow users to select the display mode for arrays in the debug window. It would be ideal to have a toggle or option to switch between the new multi-line view and the classic single-line view, similar to how it worked in LabVIEW 2024 Q3 and older versions.

This would provide the flexibility to choose the most appropriate view for the situation, greatly improving the debugging workflow and the visibility of other data on the diagram.

[Christina_R]

We're treating this as Bug 3192259, but the planned fix is to show significantly fewer items in the Value column before the ellipses:

Given this change, do you still want to have an option to limit the value display to a single line?

[kamoshida]

Hi　Christina,

Thank you for your response and for treating this as a bug.

I understand the proposed fix is to show fewer items before the ellipsis. However, I'd like to elaborate on my workflow.

My understanding is that the primary purpose of the left-side window is to provide an at-a-glance list of all active probes. For detailed inspection of specific values, I would use the right-side window.

Given this, displaying any multi-line data in the left-side list is counterproductive. It reduces the number of probes I can see simultaneously, which negatively impacts the list's core function of providing a clear overview.

Therefore, to answer your question: yes, I would still very much want the option to limit the display to a single line. In fact, I believe a single-line-only view would be preferable to even a reduced multi-line display, as it best serves the purpose of that window.