I am currently trying to convert our charts over from PQ Systems Chartrunner to SSRS 2008 charts. I am currently working with a line chart in SSRS 2008 and am trying to get
Yes, you need to look at using Strip Lines in your report:
Highlight data by adding Strip Lines.
This is a decent link, too:
Axis Strip Lines in SSRS.
Because you can make these expression based, the bands can be determined at run time. It should work in your case as you always have a set number of bands, just different values when you run the report.
Here's a simple example, based off the following dataset:
Most important thing to note is that I've included the limit rows max, mid, and min in the dataset; these makes the Strip Lines easier to create.
Create a simple chart:
Select the Y Chart Axis and expand the StripLines collection:
You can see that I've set IntervalOffset and StripWidth, based on the fields in my dataset. End result:
So you can see it's possible to do this dynamically as required. It's a simplified example but the concept is readily transferable; you should be able to adapt it to your requirements.