Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people, just like you, are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
Solved

MS Chart Control line interpolation failure?

Posted on 2013-01-09
4
514 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

Networking for the Cloud Era

Join Microsoft and Riverbed for a discussion and demonstration of enhancements to SteelConnect:
-One-click orchestration and cloud connectivity in Azure environments
-Tight integration of SD-WAN and WAN optimization capabilities
-Scalability and resiliency equal to a data center

Question has a verified solution.

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

Introduction This article shows how to use the open source plupload control to upload multiple images. The images are resized on the client side before uploading and the upload is done in chunks. Background I had to provide a way for user…
A long time ago (May 2011), I have written an article showing you how to create a DLL using Visual Studio 2005 to be hosted in SQL Server 2005. That was valid at that time and it is still valid if you are still using these versions. You can still re…
In a recent question (https://www.experts-exchange.com/questions/29004105/Run-AutoHotkey-script-directly-from-Notepad.html) here at Experts Exchange, a member asked how to run an AutoHotkey script (.AHK) directly from Notepad++ (aka NPP). This video…

808 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