Binding a BindingList to a DataGridView

[myotheraccount]

I'm a newbie to c#, so bear with me.
I'm trying to get data into from a DataReader, put it into a
BindingList that is bound into a DataGridView. My code is:

BindingList<str ing[]bl = new BindingList<str ing[]>();
BindingSource bs = new BindingSource() ;
DataGridView dgv = new DataGridView();

load_list()// method that loads the list using the DataReader

bs.DataSource = bl
dgv.DataSource = bs


As I debug, I can see that the values in bl are correct (columns are
"start", "end", "duration") , but the DataGridView shows the following
columns: Length, LongLength, Rank, SyncRoot, IsReadOnly, IsFixedSize,
IsSynchronized. Of course all rows have the same value for each of
the columns.

What am I doing wrong?

Let me know if more code is needed.
Thanks in advance