Asp.net mvc 3 如何将LINQ写入实体Lambda并连接SelectList中的属性

我编写了以下方法来填充DropDownList，它是有效的。但是，我想使用Lambda表达式作为SelectList初始值设定项的第一个参数来编写适当的LINQ查询，而不是那里的理解查询。我的目标是连接Eventm对象的EventmId和EventmTitle属性，以在DropDownList中显示为选择项

谢谢大家!

     private void PopulateEventmsDropDownList(object selectedEventm = null)
            {
                var eventmsQuery = unitOfWork.EventmRepository.Get(
                                       orderBy: q => q.OrderBy(d => d.EventmId));

                ViewBag.EventmID = new SelectList(
                (from s in eventmsQuery select new { EventmId = s.EventmId.ToString(),
                FullID = s.EventmId + " " + s.EvtTitle }),
                "EventmId", "FullID", selectedEventm);
            }

---

在使用LINQPad进行了一些尝试和错误之后，我提出了这个Lambda表达式来替换SelectList中的理解查询，如下所示：

private void PopulateEventmsDropDownList(object selectedEventm = null)
    {
        var eventmsQuery = unitOfWork.EventmRepository.Get(
             orderBy: q => q.OrderBy(d => d.EventmId));

        ViewBag.EventmID = new SelectList(nodesQuery.Select(
             x => new {x.NodeId, FullID =  string.Join(
             "  ", x.NodeId.ToString(), x.Title) }), "EventmId", "FullID", selectedEventm);
    }

---

在使用LINQPad进行了一些尝试和错误之后，我提出了这个Lambda表达式来替换SelectList中的理解查询，如下所示：

private void PopulateEventmsDropDownList(object selectedEventm = null)
    {
        var eventmsQuery = unitOfWork.EventmRepository.Get(
             orderBy: q => q.OrderBy(d => d.EventmId));

        ViewBag.EventmID = new SelectList(nodesQuery.Select(
             x => new {x.NodeId, FullID =  string.Join(
             "  ", x.NodeId.ToString(), x.Title) }), "EventmId", "FullID", selectedEventm);
    }