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c# - 在 Asp.net c# 中使用 linq 对 list 进行升序和降序排序
转载 作者:太空宇宙 更新时间:2023-11-03 12:41:23 26 4
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大家好,我正在从 web api 获取响应并将其存储在 var“obj1”中。然后将它添加到对象类型的列表“snap”中......我必须对“snap”执行操作以便列表应该根据一个参数(如“distance”)按升序排列......请帮助我

这是我的代码..

List<object> snap = new List<object>();
var obj1 = objEntity.TB_Broadcast_Snap.Where(s => s.snapid == sid)
.Join(objEntity.TB_User_Registration,
u => u.userid,
v => v.userid,
(u, v) => new { TB_Broadcast_Snap = u, TB_User_Registration = v })
.Select(s => new
{
s.TB_Broadcast_Snap.snapid,
s.TB_Broadcast_Snap.title,
s.TB_Broadcast_Snap.details,
s.TB_Broadcast_Snap.category,
s.TB_Broadcast_Snap.tag,

s.TB_Broadcast_Snap.broadcastdistance,
s.TB_Broadcast_Snap.images,
s.TB_Broadcast_Snap.latitude,
s.TB_Broadcast_Snap.longitude,
s.TB_Broadcast_Snap.image_detail1,
s.TB_Broadcast_Snap.image_detail2,
s.TB_Broadcast_Snap.image_detail3,
s.TB_Broadcast_Snap.barcode_image,
s.TB_Broadcast_Snap.broadcast_date,
s.TB_Broadcast_Snap.promocode,
snaptitle = s.TB_Broadcast_Snap.title,
s.TB_Broadcast_Snap.broadcasttype,
s.TB_Broadcast_Snap.regionname,
distance = 0,
popcountno = popcount,
issnaped = issnapped,
//Vendor Detail
s.TB_User_Registration.emailid,
address1 = "No address",

s.TB_User_Registration.userid,
s.TB_User_Registration.username,
s.TB_User_Registration.imageurl,
s.TB_User_Registration.business_name,
s.TB_User_Registration.vendortype,
vendorname = s.TB_User_Registration.name,
}).ToList();
snap.AddRange(obj1);

最佳答案

这是如何先按 Distance 排序,然后按另一个字段降序:

var obj1 = objEntity.TB_Broadcast_Snap.Where(s => s.snapid == sid)
.Join(/*code*/)
.Select(/*code*/)
.OrderBy(item => item.Distance)
.ThenByDescending(item => item.OtherField)
.ToList();

关于c# - 在 Asp.net c# 中使用 linq 对 list<object> 进行升序和降序排序,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/38892627/

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