Question

我需要立即帮助。）：我对英语知之甚少。

ASP.NET MVC 3 Linq大写或小写包含搜索

示例：

string metin="baris";

var IcerikAra = (from icerik in Context.dbDokumanEditor
join kategori in Context.dbDokumanKategori on 
icerik.KategoriID equals kategori.KategoriID
where icerik.Icerik.toLower().Contains(metin)
select new { 
KategoriID=kategori.
KategoriAd=kategori.KategoriAd
}).ToList();

异常：的堆栈跟踪：

at System.Data.EntityClient.EntityCommandDefinition.ExecuteStoreCommands(EntityCommandentityCommand, CommandBehavior behavior)
at System.Data.Objects.Internal.ObjectQueryExecutionPlan.Execute[TResultType](ObjectContext context, ObjectParameterCollection parameterValues)
at System.Data.Objects.ObjectQuery`1.GetResults(Nullable`1 forMergeOption)
at System.Data.Objects.ObjectQuery`1.System.Collections.Generic.IEnumerable.GetEnumerator()
at System.Data.Entity.Internal.Linq.InternalQuery`1.GetEnumerator()
at System.Data.Entity.Infrastructure.DbQuery`1.System.Collections.Generic.IEnumerable.GetEnumerator()
at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
at Plus.Areas.DokumanEditor.Controllers.DokumanController.DokumanIcerikAramaBaslat(String metin)

错误消息：执行命令定义时发生错误。有关详细信息，请参阅内部异常。

感谢..

Answer 1

在where子句中使用String.Equals

where icerik.Icerik.Equals(metin,StringComparison.CurrentCultureIgnoreCase)

Answer 2

我解决了，朋友..

如下：

    database datatype text -> old
    database datatype nvarchar(MAX) -> new


var IcerikAra = (from icerik in Context.dbDokumanEditor
join kategori in Context.dbDokumanKategori 
on icerik.KategoriID equals kategori.KategoriID
where icerik.Icerik.ToLower().Contains(metin)
select new { 
KategoriID=kategori.KategoriID,
KategoriAd=kategori.KategoriAd
}).ToList();

感谢朋友们......

ASP.NET MVC 3 Linq大写或小写数据库搜索

2 个答案: