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  • 嵌套datalist绑定dataset中的两张表

    1.html代码
    <HTML>
        <HEAD>
            <title>NestedDataLists</title>
            <meta name="GENERATOR" Content="Microsoft Visual Studio .NET 7.1">
            <meta name="CODE_LANGUAGE" Content="C#">
            <meta name="vs_defaultClientScript" content="JavaScript">
            <meta name="vs_targetSchema" content="http://singlepine.cnblogs.com/">
        </HEAD>
        <body MS_POSITIONING="GridLayout">
            <form id="Form1" method="post" runat="server">
                <asp:DataList runat="server" Id="dlCategories" GridLines="Both" Bordercolor="black" cellpadding="3"
                     cellspacing="0" Headerstyle-BackColor="#DDDDDD" Headerstyle-Forecolor="#777777" Headerstyle-Font-Name="Arial"
                     Headerstyle-Font-Size="14" Headerstyle-Font-Bold="true" Font-Name="Arial" Font-Bold="true"
                     Font-Italic="true" Font-Size="11" ForeColor="Red" RepeatColumns="1">
                    <HeaderTemplate>
                         省市 & 市区
                    </HeaderTemplate>
                    <ItemTemplate>
                        <%# DataBinder.Eval(Container, "DataItem.province") %>
                        <br>
                        <asp:DataList runat="server" Id="ChildDataList" GridLines="None" Bordercolor="black" cellpadding="3" cellspacing="0" Headerstyle-BackColor="#8080C0" Headerstyle-Font-Name="Arial" Headerstyle-Font-Size="8" Font-Name="Arial" Font-Size="8" datasource='<%# DataBinder.Eval(Container, "DataItem.myrelation") %>' RepeatColumns="5">
                            <ItemTemplate>
                                &nbsp; &nbsp;
                                <%# DataBinder.Eval(Container, "DataItem.city") %>
                            </ItemTemplate>
                        </asp:DataList>
                    </ItemTemplate>
                </asp:DataList>
            </form>
        </body>
    </HTML>

    2.cs代码
    public class NestedDataLists : System.Web.UI.Page
        {
            protected System.Web.UI.WebControls.DataList dlCategories;
       
            private void Page_Load(object sender, System.EventArgs e)
            {
                string constring=System.Configuration.ConfigurationSettings.AppSettings["ConnectionString"];
               
                 DataSet ds=new DataSet();
                string sql1="select * from province";
                 SqlDataAdapter     sda1 =new SqlDataAdapter(sql1,constring);
                 sda1.Fill(ds,"province");

                string sql2="select * from city";
                 SqlDataAdapter     sda2 =new SqlDataAdapter(sql2,constring);
                 sda2.Fill(ds,"city");
                
                 ds.Relations.Add("myrelation", ds.Tables["province"].Columns["provinceID"], ds.Tables["city"].Columns["father"]);
                 dlCategories.DataSource=ds.Tables["province"].DefaultView;
                 dlCategories.DataBind();
             }
           
            Web Form Designer generated code#region Web Form Designer generated code
            override protected void OnInit(EventArgs e)
            {
                //
                // CODEGEN: This call is required by the ASP.NET Web Form Designer.
                //
                 InitializeComponent();
                base.OnInit(e);
             }
           
            /**//// <summary>
            /// Required method for Designer support - do not modify
            /// the contents of this method with the code editor.
            /// </summary>
            private void InitializeComponent()
            {   
                this.Load += new System.EventHandler(this.Page_Load);

             }
            #endregion
         }
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  • 原文地址:https://www.cnblogs.com/zjw/p/1233582.html
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