Real-Time and Historical Trend display 1

[kcoder9]

Hi All,
Can someone please give ideas on how to implement real-time trend display (data vs time) through VB code without using commercial ActiveX controls.

Can the same/similar code be used for viewing historical data trend linked from database/excel file?
Is it possible to do it presentably using MS Chart control?

Any help on basic implementation ideas, links to source code samples and information will be greatly appreciated.

 

[avanderlaan]

ChartDirector used to offer an unlicensed control that would provide this functionality. However, unlicensed versions include a band with unlicensed message in the output that you cannot legally remove.

 

[kcoder9]

avanderlaan
Thanks for the info. Yeah it seems to be a good component with wide variety of customisable chart types. It could be an option if I'm not able to do it through VB code alone.

However, my requirement is to implement just the real-time trend display of data values (temperature, pressure etc) acquired from external hardware against time axis, if possible, without any external ActiveX controls.

I wonder if it is possible through a few hundred lines of VB code?
Can someone please give basic ideas on VB coding of line charts?

Thanks in advance for any help!