Reference line based on (if) Condition

[shane_spencer]

I capture metrics for 2 servers. They have different amount of Memory. I have a bar chart that is related to memory consumption. I want to put a reference line that is based on what server I select rather than one or two fixed lines. I assume this can be done quite easily with an expression but I can't quite figure out how to do it. Sample QVW is attached,

i.e. The GBW04939 line will only appear when that server is selected, and the GBW04938 will only appear when that server is selected.

[#2 · Accepted solution]

Attached with answer. You can use GetFieldSelection() .

Thanks

[shane_spencer]

Perfect! Thanx.