Question

Class Section
    List<Group> groupList

Class Group
   List<Products> productList
   Group ID
   Group Name

Class Product
   Product ID
   Product Name
   Product Details

使用C＃，.NET 4.0，如何将此数据绑定到GridView，以便我有这种格式

G1_Name
       P1_Name   P1_Details
       P2_Name   P2_Details
G2_Name
       P3_Name   P3_Details
       P4_Name   P4_Details

由于

Answer 1

一种解决方案（很多可能）：

GridView，它是绑定到组列表
包含一个包含数据绑定列表控件的TemplateField（例如Repeater，DataList或另一个GridView）。
其中数据绑定列表控件的DataSource属性绑定到Group.ProductList属性：

<asp:GridView ...>
    <Columns>
        <asp:TemplateField ...>
            <ItemTemplate>
                <asp:Repeater ... DataSource='<%# Eval("ProductList")) %>'>
                    <ItemTemplate>
                         ... controls bound to Product properties
                     </ItemTemplate>
                 </asp:Repeater>
             </ItemTemplate>
        </asp:TemplateField>
    </Columns>
</asp:GridView>

Answer 2

听起来你正试图绑定一个分层集合。根据您的描述，我建议使用ListView而不是GridView。您将在数据显示方面获得更多控制和灵活性。但是，您可以选择以下代码，以便在GridView中轻松修改以下代码。

代码将产生以下结构：

enter image description here

<强> ASPX

<asp:ListView runat="server" ID="listView">
        <LayoutTemplate>
            <ul><asp:PlaceHolder ID="itemPlaceholder" runat="server"></asp:PlaceHolder></ul>
        </LayoutTemplate>
        <ItemTemplate>
            <li><%# Eval("GroupName") %>
                <asp:ListView runat="server" DataSource='<%# Eval("productList")%>'>
                    <LayoutTemplate>
                        <ul><asp:PlaceHolder ID="itemPlaceholder" runat="server"></asp:PlaceHolder></ul>
                    </LayoutTemplate>
                    <ItemTemplate>
                        <li><%# Eval("ProductName") %> - Details: <%# Eval("ProductDetails") %></li>
                    </ItemTemplate>
                </asp:ListView>
            </li>
        </ItemTemplate>
    </asp:ListView>

<强> C＃

        public class Section
        {
            public List<Group> groupList { get; set; }
        }

        public class Group
        {
            public List<Product> productList { get; set; }
            public int GroupID { get; set; }
            public string GroupName { get; set; }
        }

        public class Product
        {
            public int ProductID { get; set; }
            public string ProductName { get; set; }
            public string ProductDetails { get; set; }
        }

        Section section = new Section { groupList = new List<Group>() };

        Group group = new Group { GroupID = 1, GroupName = "Fruits", productList = new List<Product>() };
        Product product = new Product { ProductID = 1, ProductName = "Apples", ProductDetails = "On Sale" };
        group.productList.Add(product);
        product = new Product { ProductID = 2, ProductName = "Oranges", ProductDetails = "Not on Sale" };
        group.productList.Add(product);
        product = new Product { ProductID = 3, ProductName = "Pears", ProductDetails = "Big Spender Sale" };
        group.productList.Add(product);
        product = new Product { ProductID = 4, ProductName = "Grapes", ProductDetails = "Not on Sale" };
        group.productList.Add(product);

        section.groupList.Add(group);

        group = new Group { GroupID = 2, GroupName = "Vegetables", productList = new List<Product>() };
        product = new Product { ProductID = 5, ProductName = "Carrots", ProductDetails = "Not on Sale" };
        group.productList.Add(product);
        product = new Product { ProductID = 6, ProductName = "Celery", ProductDetails = "Last week only" };
        group.productList.Add(product);
        product = new Product { ProductID = 7, ProductName = "Eggplant", ProductDetails = "Big Spender Sale" };
        group.productList.Add(product);
        product = new Product { ProductID = 8, ProductName = "Oniones", ProductDetails = "N/A" };
        group.productList.Add(product);

        section.groupList.Add(group);

        group = new Group { GroupID = 3, GroupName = "Meat", productList = new List<Product>() };
        product = new Product { ProductID = 9, ProductName = "Beef", ProductDetails = "On Sale" };
        group.productList.Add(product);
        product = new Product { ProductID = 10, ProductName = "Pork", ProductDetails = "Back for two weeks" };
        group.productList.Add(product);
        product = new Product { ProductID = 11, ProductName = "Chicken", ProductDetails = "On sale" };
        group.productList.Add(product);
        product = new Product { ProductID = 12, ProductName = "Turkey", ProductDetails = "Going fast" };
        group.productList.Add(product);

        section.groupList.Add(group);

        listView.DataSource = section.groupList;
        listView.DataBind();
    }

Gridview - 绑定集合中的集合

2 个答案: