Question

您好我有一个包含用户定义的数据类型属性的类。我已经创建了该类的实例。当我将该类的对象绑定到DetailsView时，它显示除用户定义的数据类型属性之外的所有属性。这是示例代码。

public class Customer
{
    public string CustomerName { get; set; }
    public int Age { get; set; }
    public Address CustomerAddress { get; set; }
}

Address class looks like

public class Address
{
    public string Line1 { get; set; }
    public string Line2 { get; set; }
    public string City { get; set; }
}

Creating an object of Customer class

var cust = new Customer {
               CustomerName = "abc",
               Age = 25,
               CustomerAddress = new Address{ Line1 = "abc", Line2 = "abc", City = "abc" }};

Binding cust to Details View

List<Customer> customerInfo = new List<Customer>();
customerInfo.Add(cust);
DetailsView1.DataSource = custmerInfo;
DetailsView1.DataBind();

In .aspx page 

<asp:DetailsView ID="DetailsView1" runat="server" AutoGenerateRows="False">
<Fields>
    <asp:BoundField DataField="CustomerName" HeaderText="Customer Name">
    <asp:BoundField DataField="Age" HeaderText="Customer Age">
    <asp:BoundField DataField="CustomerAddress" HeaderText="Customer Address ">
</Fields>
</asp:DetailsView>

以上代码未显示客户地址。任何人都可以帮助我吗？

Answer 1

在绑定数据时，如果Main Class（Customer here）具有Child类（此处为Address），则要显示Child类对象属性，我们需要使用<asp:TemplateField />。

因此，请使用以下示例：

<asp:TemplateField HeaderText=”City”>
    <ItemTemplate>
        <asp:Label ID=”customerCity” runat=”server” 
                   Text='<%# Eval("CustomerAddress.City") %>'></asp:Label>
    </ItemTemplate>
</asp:TemplateField>

下面的代码预计会工作，但不会：

<asp:BoundField DataField="CustomerAddress.City" HeaderText="City" />

Answer 2

我认为在.NET4中你可以做到：

<asp:BoundField DataField="CustomerAddress.City" HeaderText="City" />

如何将用户定义的数据类型对象绑定到DetailsView？

2 个答案: