Using IWChartJS

[Alexandre Machado]

Hi guys,

a new demo showing how to use the new IWChartJS component with IntraWeb. Super easy to create amazing charts. Check it out:

https://github.com/Atozed/IntraWeb/tree/...hi/ChartJS

   

[PaulWeem]

Hi Alexandre,

Thank you very much for this demo, very helpful.
Just one question: How do I combine a Bar and and a Line in one chart?

Thanks in advance!

Cheers, Paul

[Alexandre Machado]

Hi Paul,

I'm glad that you liked the demo.

This is a missing bit that it's ready but I couldn't test before releasing the latest update (15.2.64) so it hasn't been included, but we are going to release it in a few days.

To combine 2 different charts in one, you just need to create a second series with a different chart type.

If you check the third chart in that demo, I create 1 additional series (the main series is built-in).

For instance, to change the second series to a line, you can do this:

  // create a second series here
  SecondSeries := IWChartJS4.AddSeries(ctLine, 'Year 2050');

Then you will have the main series as a bar chart and the second series as a line one. Simple :-)

[PaulWeem]

Hi Alexandre,

Thank you for your response. I tried creating a second series as a ctLine, and I can confirm that this doesn't work.
Whatever I try, the Chart keeps showing all series as the ChartType initially set on the TIWChartJS itself.

Cheers, Paul

[Lorbass]

Hi Alexandre,

Thank you for your response. I tried creating a second series as a ctLine, and I can confirm that this doesn't work.
Whatever I try, the Chart keeps showing all series as the ChartType initially set on the TIWChartJS itself.

Cheers, Paul

Great that now Charts are implemented!

But I can confirm what Paul says.

In addition, the legend display does not work correctly for all ChartTypes: ctPie works correct, ctBar does not.

Another question: Is it possible to generate stack bars?

Cheers, Detlef

[Alexandre Machado]

what do you mean the legend display do not work correctly for ctBar?

The example below is from the demo application. Seems to work correctly for me

   

[Alexandre Machado]

Regarding stack bars, yes, it will be possible in the next release