使用EF的code first开发怎么绑定多对多的数据到repeater?

[chocolatelife]

public class BlogPost

    {
        public int BolgID
        {
            get;
            set;
        }

        public int ID
        {
            get;
            set;
        }

        public string Title
        {
            get;
            set;
        }

        public virtual ICollection<Category> Category
        {
            get;
            set;
        }

    }

public class Category

    {
        public int ID
        {
            get;
            set;
        }

        public string Title
        {
            get;
            set;
        }

        public virtual ICollection<BlogPost> BlogPost
        {
            get;
            set;
        }
}

using(MyDemoContext context = new MyDemoContext())

            {
                DbSet<BlogPost> post = context.Set<BlogPost>();
                    var v = post.Include(p=>p.Category).Where(p=>p.ID==5).ToList();
                    Repeater1.DataSource = v;
                    Repeater1.DataBind();

            }

<asp:Repeater ID="Repeater1" runat="server">
            <HeaderTemplate>
                <table>
                    <thead>
                        <td>BlogID</td>
                        <td>BlogTitle</td>
                        <td>CategoryTitle</td>//Category's title
                    </thead>
                
            </HeaderTemplate>
            <ItemTemplate>
                <tr>
                    <td><%# Eval("ID")%></td>
                    <td><%# Eval("Title")%></td>
                    <td><%# Eval("")%></td>//这里怎么绑定 Category.Ttitle?
                </tr>
            </ItemTemplate>
            <FooterTemplate>
            </table>
            </FooterTemplate>
        </asp:Repeater>

结果显示两张表的数据：

BlogID BlogTitle CategoryTitle

5 test C#

5 test asp.net

5 test VB

如果用dataset就非常简单直接绑定就行了，现在用code first怎么绑定呢？主要是对象里有对象集合。

[q107770540]

using(MyDemoContext context = new MyDemoContext())

{
DbSet<BlogPost> post = context.Set<BlogPost>();
var v = post.Include(p=>p.Category).Where(p=>p.ID==5)
.Select(p=>new{
ID=p.ID,
Title=p.Title,
CategoryTitle=p.Category.Title
}).ToList();
Repeater1.DataSource = v;
Repeater1.DataBind();

}

[chocolatelife]

[Quote=引用 2 楼 q107770540 的回复:]

using(MyDemoContext context = new MyDemoContext())

{
DbSet<BlogPost> post = context.Set<BlogPost>();
var v = post.Include(p=>p.Category).Where(p=>p.ID==5)
.Select(p=>new{
ID=p.ID,
Title=p.Title,
CategoryTitle=p.Category.Title
}).ToList();
Repeater1.DataSource = v;
Repeater1.DataBind();

}
[/Quote]
p.Category是对象集合点不出Title

[chocolatelife]

用repeater嵌套：

BlogID  BlogTitle  CategoryTitle
   5       test         C#， asp.net，技术

但是我想要的结果是：

BlogID  BlogTitle  CategoryTitle
   5       test         C#
   5       test         asp.net
   5       test         技术

[kkbac]

多个CategoryTitle吧.都是 ICollection<Category> 里面呢
你绑定的地方是一个 ICollection<Category>类型. 写一个方法, 遍历整个

比如:
<td><%# BindCategory((ICollection<Category>) Eval("Category"))%></td>//这里怎么绑定 Category.Ttitle?

页面上对应写一个BindCategroy的方法就是了.

[bustersword]

重新构造数据源 T T