Objective:
if u have very large sets of data say more than one mb of metrics. This you need to deliver it on line graph

Solution:
This is a premature solution as of now.

Go to:

http://bugs.adobe.com/jira/secure/IssueNavigator.jspa?pager/start=50

and search for

FLEXDMV-1901

u will get a solution, adobe it self find it difficult we are just programmers downlod the resolve solution and enjoy!!!

Thanks,
Navis Michael Bearly. J

Objective is to add dynamic lines on line chart. or else add or remove lines dymically. for this u need to add little action script to work better on flex. This is the solution i found.

direct url
http://whatsmytitletoday.blogspot.com/2008/12/add-and-remove-lineseries-...

Thanks to Ang

enjoy RIA on flex

Create verticalAxisRenderers for verticalaxis and add the attribute "verticalAxisTitleAligment=vertical" thats it :)