数据集中的Databind组件到表

Question

我创建了一个方法，用数据源对表进行数据绑定。：

private void AddDataBinding()
    {
        txtID.DataBindings.Add("Text", ds, "Ticket.RaffleID");
        cboName.DataBindings.Add("Value", ds, "Ticket.CustomerID");
        dtpDate.DataBindings.Add("Value", ds, "Ticket.Date");
        txtStore.DataBindings.Add("Text", ds, "Ticket.Store");
        txtAmount.DataBindings.Add("Text", ds, "Ticket.Amount");
        txtStub.DataBindings.Add("Text", ds, "Ticket.NoStub");

        cm = (CurrencyManager)this.BindingContext[ds, "Ticket"];
    }

private void frmCustomerTicket_Load(object sender, EventArgs e)
    {
        OpenConnection();
        AddDataBinding();
    }

当我运行代码时，此消息显示：“无法创建字段故障单的子列表。”