Real Time Graph with Ajax and Ms Chart

girish meena

16y15.2kAJAX

Hi,

I have requirement to build a real-time graph. Although if we use Ajax real time feature in MSChart it refresh the graph image after specified [provided by us] time period. This will tell users that the graph is refreshing every (say) 10 second.

Is it possible that user will never know the graph is refreshing with instantaneous data update?

9 Replies

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Suthish Nair16y ago
Accepted answer
Download MSChart samples (http://www.c-sharpcorner.com/UploadFile/Blogs/3660/),
try AJAX Interactivity ==> Rel Time Graph section.
Also, refer about dundas chart solution (same MSChart)
http://support2.dundas.com/forum/printable.aspx?m=186
Let me know the output.
girish meena16y ago
Hi,

I am trying to do it with atlas + Ms Chart and will get back to you.

thanks,
Suthish Nair16y ago
Microsoft aquired some of the Dundas code and charting intellectual property in April 2007, and are integrating it into a variety of Microsoft products. We can say both are same almost.

did you tried the link posted:
http://support2.dundas.com/forum/printable.aspx?m=186
more:

http://social.msdn.microsoft.com/forums/en-us/MSWinWebChart/thread/4EAA4568-3944-46CB-8DF7-CD0C91766810

Also how to use Atlas with above link, article saying using atlas we can avoid flicker:

http://www.c-sharpcorner.com/UploadFile/DipalChoksi/updpnl_atlas_dc08232006005322AM/updpnl_atlas_dc.aspx
girish meena16y ago
Hi,

Thanks for your help dudans chart is working as the same way i like. do i need to purchase it?

If you can provide me any alternative i will be very thankful to you.

Thanks
girish meena16y ago
Is there any solution of this problem ?
girish meena16y ago
Hi,
can you provide me some example that would be grate for me :)
actually i also tried it with google visualization api [ for chart ] in that i use "ajax + javascript" for gathering data from another page. i need to refresh the graph so i used javascript settimeout() method recursively like "var t = setTimeout(drawChart(), 50000);" but when the page load it hangs browser.
Thanks,
Suthish Nair16y ago
Microsoft Chart uses AJAX update panel. The only workaround to avoid flicker is to develop a custom AJAX calls, or hook up to AJAX load events and monitor incoming calls to switch and cleanup the images.
girish meena16y ago
Hi,
I did the same thing which you described but no success. still the graph flicker. although i am not sure that if i have only single update panel on page than also i need to use "UpdateMode"
Thanks,
Suthish Nair16y ago
You can wrap MSChart, Timer controls in UpdatePanel and set UpdateMode="Conditional".