how refresh DataGridView1.DataSource

hi guys

I tried alot of ways to refresh DataGridView... but  they didn't work.

plz give me the best way to solve it... i mean minimum code. many many thanks!!

if (dataGridView1.InvokeRequired)
            {
                this.Invoke(new Delegate_GridView(refreshDataGridView));
                Action DoCrossThreadUIWork = () =>
                {
                    dataGridView1.EndEdit();
                    BindingSource bs = new BindingSource();
                    bs.DataSource=AgContext.Select_Anbar();
                    dataGridView1.DataSource = bs;
                    txt_Name.Focus();
                    dataGridView1.Focus();
                    dataGridView1.Refresh();
                    bs.ResetBindings(false );
                };

                this.BeginInvoke(DoCrossThreadUIWork);

            }
            else
            {
                dataGridView1.EndEdit();
                BindingSource bs = new BindingSource();
                bs.DataSource = AgContext.Select_Anbar();
                dataGridView1.DataSource = bs;
                txt_Name.Focus();
                dataGridView1.Focus();
                dataGridView1.Refresh();
                bs.ResetBindings(false);
            }
        }

امیدوارم همیشه بروز باشید I hope always be up2date