What does the "series" represent for a chart

Question

Im busy creating some charts to go on my silverlight application and would just like to know what the .Series[0] represents in the following piece of code

PieSeries pieSeries = ((PieSeries)chart.Series[0]);

Answer 1

Did you check the documentation for the control you're using? What exactly are you having trouble with?

Sec, .Series[0] means to access the Series property, which is an array or list type or indexer, where you want to access the first (zero-based) element (0).