Hi Tamas,

I recommend starting out by reading our Getting Started with DataChart topic to familiarize yourself with how our chart works and what its capabilities are. Next, take a look at the topic for each series to see a code example of how to do basic setup and databinding. For example, see the example in our Column Series topic.

In order to pull the data from multiple sources, I recommend reading the text files in and building a single datasource which you can bind to the UltraDataChart.

Please let me know if you have any further questions.