Real Time Graph with Ajax and Ms Chart

Question

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?

Suthish Nair · 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 meena · Answer

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

Suthish Nair · Answer

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 meena · Answer

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 meena · Answer

Is there any solution of this problem ?

girish meena · Answer

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 Nair · Answer

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 meena · Answer

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 Nair · Answer

You can wrap MSChart Timer controls in UpdatePanel and set UpdateMode=Conditional.