Question

我正在为数据库编写一个只读前端，似乎找不到找到使数据保持同步的方法。我可以查询数据库并将结果放入DataTable中，然后将其附加到DataSet并将其用作DataGridView的DataSource，我正在苦苦挣扎的是刷新DataTable / DataSet中的行，并且更改反映在DataGridView。

    DataTable orders = new DataTable();
    DataTable lines = new DataTable();
    DataSet dataSet = new DataSet();
    private string orderQuery = "SELECT oh_ord_no AS OrderID, oh_stat AS OrderStatus, oh_cu_no AS CustomerID, cus_name AS CustomerName, cus_price_no AS PriceBand, cus_ac_manager AS AccountManager, oh_ord_type AS OrderType, oh_ord_ref AS OrderReference, oh_del_meth AS DeliveryMethod, oh_op_no AS InputBy, oh_route_no AS Route, CAST(SQL_DATE,DATEADD(day,-1,oh_ord_date)) AS OrderDate, CAST(SQL_DATE,DATEADD(day,-1,oh_del_date)) AS DeliveryDate, oh_head_text AS HeaderText, oh_foot_text AS FooterText, oh_total_units AS TotalUnits, oh_ord_value AS OrderValue, CAST(SQL_DATE,DATEADD(day,oh_status_change_date,'1899-12-31')) AS StatusChangeDate, oh_status_change_time AS StatusChangeTime, oh_conf_no FROM admin.sffoh1 LEFT JOIN admin.sdfcus ON oh_cu_no = cus_no";
    private string orderLines = "SELECT ilf_ord_no AS OrderID, ilf_prod_ptr AS ProductID FROM admin.sffilf";
    public Form1()
    {
        InitializeComponent();
    }

    private void button1_Click(object sender, EventArgs e)
    {
        orders = SwordsData.GetData(orderQuery, "orders");
        orders.AcceptChanges();
        lines = SwordsData.GetData(orderLines, "lines");
        dataSet.Tables.Add(orders);
        dataSet.Tables.Add(lines);
        dataview.DataSource = dataSet;
        dataview.DataMember = "orders";
    }

    private void timer1_Tick(object sender, EventArgs e)
    {
        orders.Reset();
        orders = SwordsData.GetData(orderQuery, "orders");
        lines = SwordsData.GetData(orderLines, "lines");
        dataSet.GetChanges();
    }

那是我到目前为止所拥有的。我似乎无法在网上找到任何可以帮助我的东西：（

任何帮助或建议将不胜感激。李

C＃使DataTable与数据库同步

0 个答案: