Error with Index Values Property for Table Scrolling

[davidthealias]

Hi All

I'm hoping someone can take a look at the attached code I am having trouble with. My ultimate goal is to implement an auto scroll for a Table in my main VI as I continue to populate it with test results using a subVI. Right now I am just trying to get the concept down since I haven't done this before, but I keep getting an "Error 1077 occurred at Property Node (arg 1)" for the IndexValue and I cannot figure out why. I have tried looking at other examples and dont see the issue.

As a secondary question, I want to change the "Pass" or "Fail" active cell to green or red as I continue to populate the table, is there an easy way using a property node to re-initialize all table cells back to the default blank color when I start my program? If so I can't seem to figure it out and cells retain their colors unless I write over them again one at a time.

Thanks!

[davidthealias]

I just wanted to say I found my issue with the first part, I was reading a negative number for the row, didn't know this would be an issue because I was copying examples.

Am still trying to figure out the second part. Thanks

[PalanivelThiruvenkadam]

First Q

                You cant feed Negative values as Index Values to a Property node. [Table holds the index values from 0 to n]

Second Q

                Make sure your default Table contains white BG in the status column. and use reinitialize to default at the start of program.

[davidthealias]

OK I think I understand the second Q now. Thank you

[PalanivelThiruvenkadam]

For your First Question "Revisit your subtraction logic which gives negative values"

[davidthealias]

Understood. The reason why I had missed that part is that I was following the autoscroll table.vi found in this thread:

https://forums.ni.com/t5/LabVIEW/auto-scroll-table/td-p/226100

I still don't quite understand why it works as the row value is a negative number as well up until the point that it starts scrolling. 

[Ben]

For the Q about setting the entire table to default color...

Use (-2,-2) for the active cell before setting the BG color.

See the help for "active cell"

Elements

Name	Description
Row	Sets the row(s) of the active cell(s). Possible values are 0…n, where n is the total number of rows - 1. Enter –2 to select all rows.
Column	Sets the column(s) of the active cell(s). Possible values are 0…m, where m is the total number of columns - 1. Enter –2 to select all columns. Enter –1 to select the column header.

The following table lists example values for this property.

Row	Column	Result
–2	0	Selects all cells of the first column, including the column header.
–2	–2	Selects all rows and columns, including column headers.
–1	0	Selects the header of the first column.
–1	–2	Selects the headers of all columns.

 

Ben