Usm*_*lid 3 .net c# database asp.net linq-to-sql
我使用Linq to Sql查询数据库.这是我的数据:
Name LastName Age
------------------------------
1 Abc Def 15
2 Abc Def 17
3 xyz wss 17
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我的Linq to Sql代码是:
Context _context = new Context("Conn_String");
var table = _context.GetTable<Person>();
List<Person> persons = table.Where<Person>(p => p.Name == "Abc" && p.LastName == "Def").ToList<Person>();
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据我了解,此查询应返回2条记录.即记录1和记录2.但它返回记录1两次.如果它是Linq to Sql中的错误或我做错了什么,你能告诉我吗?
编辑:
这是我的DAL代码:
public List<T> GetList<T>(Expression<Func<T, bool>> predicate) where T : class
{
try
{
Context _context = new Context("Conn_String");
var table = _context.GetTable<T>();
return table.Where<T>(predicate).ToList<T>();
}
catch (Exception ex)
{
throw ex;
}
}
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我将此方法称为:
List<Person> person = DAL.GetList<Person>(p => p.Name == "Abc" && p.LastName == "Def");
foreach(var Person in persons )
{
// Print(person.Age);
}
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