Solved

MS Chart Control line interpolation failure?

Posted on 2013-01-09
4
505 Views
Last Modified: 2013-01-09
Hi Experts!

I have an ASP 4.0 app with some chart controls showing data from a SQL server.
There are all XY graphs with charttype = line (or fastline). For some, to me, unknown reason the lines fail to connect some of the data points and overlap (see attached picture).

I suspect that there is something wrong with the internal interpolation routine in the Chart Control object, maybe I'm wrong?
Does anyone here know of a solution to get rid of this I would be more than happy?

BR,
Peer
line-fail.JPG
0
Comment
Question by:peer754
  • 2
  • 2
4 Comments
 
LVL 44

Accepted Solution

by:
AndyAinscow earned 500 total points
ID: 38759560
Are the datapoints sorted correctly ?  (This looks like the jumps could be between datapoints in the order they are in the dataset)
0
 

Author Comment

by:peer754
ID: 38759588
Hi,
All datapoints are inserted into the DB in real-time, i.e. they should be sorted w.r.t. time.
I will make sure however if that's the case.
Thanks!
0
 
LVL 44

Expert Comment

by:AndyAinscow
ID: 38759623
Just because they are sorted in the table doesn't mean they will be sorted in the dataset (they could be but...)
0
 

Author Closing Comment

by:peer754
ID: 38759665
You were right, the data was not sorted (WHY?). The data is added at real-time in a time interval to a table with id so I assumed (wrongly) that the data should be sorted as it it's been added.

Thanks!
0

Featured Post

Announcing the Most Valuable Experts of 2016

MVEs are more concerned with the satisfaction of those they help than with the considerable points they can earn. They are the types of people you feel privileged to call colleagues. Join us in honoring this amazing group of Experts.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Performance in games development is paramount: every microsecond counts to be able to do everything in less than 33ms (aiming at 16ms). C# foreach statement is one of the worst performance killers, and here I explain why.
This article shows how to deploy dynamic backgrounds to computers depending on the aspect ratio of display
This Micro Tutorial demonstrates using Microsoft Excel pivot tables, how to reverse engineer competitors' marketing strategies through backlinks.
This video shows how to use Hyena, from SystemTools Software, to bulk import 100 user accounts from an external text file. View in 1080p for best video quality.

815 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

12 Experts available now in Live!

Get 1:1 Help Now