why doesn't datagridview refresh?

Question

here is what happens after i press a button:

    dataGridView1.DataSource = ConnectandReadList(some_query);
    dataGridView1.Refresh();

pl

Answer 1

You could do as @cycl suggested, you could also use a BindingSource which I believe is the recommended method by microsoft.

BindingSource bs = new BindingSource(); 
bs.DataSource = ConnectandReadList(some_query);
dataGridView1.DataSource = bs;
dataGridView1.Refresh;