这里的错误代码如下? 已经有一个与此命令关联的打开的DataReader,它必须先关闭。已经有一个与此命令相关的打开的DataReader,它必须先关闭linq
“执行命令定义时发生错误,请参阅内部异常以了解详细信息。”
var cat = from c in db.Question select c;
foreach (Questions question in cat) {
Console.WriteLine("{0}", question.tittle);
Console.WriteLine("{0}", question.deskripsi);
Console.WriteLine("{0}", question.id_question);
**foreach (Categories p in question.Categories)**
{
Console.WriteLine("{0}", p.id_kategori);
Console.WriteLine("{0}", p.nama_kategori);
}
}
这是Linq-to-SQL或Linq-to-Entities? – wdosanjos
Linq to Entities – user3113811