当数据源为 Linq 时访问 ItemDataBound 事件中的列

我使用以下代码设置数据源：

    protected void Page_Load(object sender, EventArgs e)
    {
        var vacancies = from v in db.Vacancies
                    join c in db.Customers on v.CustomerID equals c.CustomerID
                    join cp in db.CustomerPortals on c.CustomerID equals cp.CustomerID
                    where cp.PortalID == Master.Portal.ID
                    select new
                    {
                        Title = v.Title,
                        Internship = (v.ContractID == 6),
                        Hours = v.Hours,
                        City = v.Customer.City.Name,
                        Degree = v.Degree.Title,
                        Contract = v.Contract.Title,
                        CustomerID = v.CustomerID
                    };
        rVacancies.ItemDataBound += new RepeaterItemEventHandler(rVacancies_ItemDataBound);
        rVacancies.DataSource = vacancies;
        rVacancies.DataBind();
    }

现在我想知道如何从 ItemDataBound 事件访问其中 1 列（如 CustomerID）。

    void rVacancies_ItemDataBound(object sender, RepeaterItemEventArgs e)
    {
         // This doesnt seem to work, row would be null even though e.Item.DataItem has a value.
         DataRow row = (DataRow)e.Item.DataItem;
    }

我发现 e.Item.DataItem 包含我查询中的所有字段，并且 e.Item.DataItem 的类型是

f__AnonymousType8<string,bool,byte,string,string,string,long>

这种 .Net 4.0 方法确实也非常酷！

public void PersonDataBound(object sender, RepeaterItemEventArgs e)
{
    if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
    {
        dynamic person = e.Item.DataItem as dynamic;

        string name = person.Name;
        int age = person.Age;
    }
}

全部归功于：http://www.kristofclaes.be/blog/2010/08/12/anonymous-types-and-the-itemdatabound-event/

由于该页面现在显示错误 404，因此以下是来自 Wayback Machine 的页面：匿名类型和 ItemDataBound 事件（存档版本）