Need Charting wo/ using Db...

[W01fgang]

I am working on a project that requires a bar chart to be displayed on realtime.

Are any any ActiveX or dotNet components that allows values to be pushed to the chart without any usage of Database as there are hundreds of thousands of values generated in 12 hours.

Will be glad to pay for it. Thanks.

[brucevde]

Try the MS Chart control. They probably have a .NET version as well. I have no idea how robust it is as I have only ever used it for simple charts.

[biswajitdas]

Ms chart control give you facility of that.

but it make a problem in query.so the trick is write the quesy in the mschart control.




so this control only help to show but the main trick to write the query


Bisawjit das

[W01fgang]

Originally posted by biswajitdas
Ms chart control give you facility of that.

but it make a problem in query.so the trick is write the quesy in the mschart control.

so this control only help to show but the main trick to write the query

Bisawjit das

Thanks all for the suggestions, i will explore your recommendation.

I have never used MS Chart in much detail and have tried. Can someone show me a few lines of codes in pushing the values along?

Now let's say T1 (Time-1) with value 10 comes along first. Then T2 comes with 20.

I need to push T1, T2 and Tn from Right to Left as time goes by. I need to retain 100 values in the chart before dropping off the oldest entry.

[brucevde]

This is just a guess.

Create an array of 100 items.
Set element 100 to T1.
Set the Chart data to the array (MSChart.ChartData = aData)

Move all the elements down one position
Set element 100 to T2.
Set the Chart data to the array (MSChart.ChartData = aData)
Repeat.

Also, once your grid is setup, I am pretty sure you have direct access to the data through the different chart properties (DataGrid, Series etc..)

[W01fgang]

Thanks for the direction and algorithm.

I will take it further and test how robust MS Chart when it is under pressure.