Question

Currently have this:

foreach (var series in Chart1.Series)
{
    series.Enabled = false;
}

I would like to express this in a simple, one line expression. I thought this would work:

Chart1.Series.Select( series => series.Enabled = false);

This doesn’t have any effect, however. Presumably because I just misunderstood how Select was working, which is fine.

My next thought was to do something like Chart1.Series.ForEach( series => series.Enabled = false), but Chart1.Series does not implement IEnumberable (..or at least ForEach is not an acceptable method to call).

I’d rather not do Chart1.Series = Chart1.Series.ToList().ForEach( series => series.Enabled = false);, but maybe that is the simplest option?

Answer 1

The foreach is preferred for what you’re trying to do. You’re iterating over a sequence of elements and modifying the elements. That’s what foreach is for.

Linq is used to take one sequence of elements and generate a new sequence based on some criteria/transformation. Not what you’re after.