DataGridView数据源绑定

  UserAction uAction = new UserAction();
        private void DGVDataTest_Load(object sender, EventArgs e)
        {


            ArrayList arrayList = new ArrayList();
            arrayList = uAction.QueryPageList(1).getPage(); 
            dataGridView1.ReadOnly = true;
            bindingSource1.DataSource = arrayList;
            dataGridView1.DataSource = bindingSource1;
            //dataGridView1.DefaultCellStyle.SelectionBackColor = Color.Black;
            this.dataGridView1.RowsDefaultCellStyle.BackColor = Color.Bisque;
            this.dataGridView1.AlternatingRowsDefaultCellStyle.BackColor =
                Color.Beige;

        }
        //选中行删除
        private void button2_Click(object sender, EventArgs e)
        {
            
            /*
             int selectIndex = dataGridView1.SelectedRows.Count;
            if (selectIndex == 1)
            {
                if (MessageBox.Show("您确定"+dataGridView1.SelectedRows[0].Cells[0].Value.ToString(), "提示", MessageBoxButtons.OKCancel, MessageBoxIcon.Question) == DialogResult.OK)
                {
                    bindingSource1.RemoveAt(this.dataGridView1.SelectedRows[0].Index);
                } 
            }
            else if (MessageBox.Show("您确定" + selectIndex, "提示", MessageBoxButtons.OKCancel, MessageBoxIcon.Question) == DialogResult.OK)