Linq to SQL : How to do WHERE [Column] = Element in LIST ?
本文关键字:to Element LIST Column in SQL How do WHERE Linq | 更新日期: 2023-09-27 17:50:34
首先,我看到了很多像我这样的帖子,但我没有找到答案。
所以,我试图找到一个linq到SQL请求的等效"IN"子句,我发现一些东西:
IList<int> listClientId = GetAllClientIdByRegionLPS(statutRegion);
if (!statutRegion.Equals(""))
q = q.Where(p => listClientId.Contains((int)p.ClientId));
但这使我犯了一个错误:"' Boolean contains(int32)'不支持转换为sql"
我想做什么:选择……从…(条件)AND (id == 1 OR id== 2 OR id==3 OR…)
让我们看看我的代码:
public IList<Appel> GetAllCourants(string Filter, int? StatutFacturation, int? statutDemande, int? statutPro, string statutRegion)
{
var q = from p in DbContext.Appels
where (p.Client.Nom.Contains(Filter) || p.AppelId.ToString().Contains(Filter) || (p.Materiel.Modele1.Nom + " #" + p.Materiel.NumeroSerie).Contains(Filter) || p.ContactClient.Nom.Contains(Filter) || p.ContactClient.Prenom.Contains(Filter) || p.Dossier.Contains(Filter) || p.Client.CodePostal.Contains(Filter) || p.Client.Ville.Contains(Filter) || p.NumDevis.Contains(Filter))
select p;
q = q.Where(p => p.StatutAppelId == 1 || p.StatutAppelId == 9 || p.StatutAppelId == 10 || p.StatutAppelId == 13 || p.StatutAppelId == 14 || p.StatutAppelId == 15 || p.StatutAppelId == 16 || p.StatutAppelId == 17 || p.StatutAppelId == 18);
if (StatutFacturation.HasValue)
q = q.Where(p => p.Facturable == StatutFacturation.Value);
if (statutDemande.HasValue)
q = q.Where(p => p.StatutDemandePiece == statutDemande.Value);
if (statutPro.HasValue)
q = q.Where(p => p.Depot == statutPro.Value);
//This makes me troubles
IList<int> listClientId = GetAllClientIdByRegionLPS(statutRegion);
if (!statutRegion.Equals(""))
q = q.Where(p => listClientId.Contains((int)p.ClientId)); /*Try to do p.ClientId = listClientId*/
var ret = q.Select(p => Deserialize<Generated.Appel>(p)).ToList();
return ret;
}
我该如何修复它?
提前感谢!
尝试更改
IList<int> listClientId = GetAllClientIdByRegionLPS(statutRegion);
List<int> listClientId = GetAllClientIdByRegionLPS(statutRegion);