LINQ和ToString()方法的问题 [英] Problems with LINQ and ToString() method
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问题描述
LINQ to Entities无法识别方法"System.String ToString()"，并且该方法无法转换为商店表达式
我正在使用以下代码:
LINQ to Entities does not recognize the method ''System.String ToString()'' method, and this method cannot be translated into a store expression
I''m using the following code :
using(var sd=new dataEntities())
{
var listofdata=sd.users.where(d=>d.id.ToString().Contain("2"));// id as int
// error : LINQ to Entities does not recognize the method 'System.String ToString()' method, and this method cannot be translated into a store expression.
}
推荐答案
answer:var listofdata = sd.users.where(d => SqlFunctions.StringConvert((double?)d.id). Contain("2"));
answer : var listofdata=sd.users.where(d=>SqlFunctions.StringConvert((double?)d.id).Contain("2"));
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