关于c＃：从IQueryable转换为IEnumerable

Converting from IQueryable to IEnumerable

如何从IQueryable转换为IEnumerable？我看了从iqueryable到IEnumerable的另一篇文章，但是它不够通用，不能重用？有人能提供一种通用的、可重用的方法来实现这一点吗？

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public class SoftwareProductRepository
{
BitDatabaseEntities bitDB = new BitDatabaseEntities();
public IEnumerable<BuildMetrics> GetBuildMetrics()
{

var list = (from r in bitDB.bit_sanity_results select r);

return list;
}
}

错误信息：

Cannot implictly converty type
'System.Linq.IQueryable'
to
'System.Collections.IEnumerable'.An
explicit conversion exists(are you missing a cast?)

相关讨论

尝试将Queryable转换为Enumerable，方法如下：

1	(from r in bitDB.bit_sanity_results select r).AsEnumerable();

这将给您一个可枚举的集合，但我认为您可能需要从这个返回的bit_sanity_results生成BuildMetrics对象。像：

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(from r in bitDB.bit_sanity_results select new BuildMetrics{
<some BuildMetrics property>=r.<some bit_sanity_results property>
}).AsEnumerable();

例子

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public class ReturnClass
{
public string SSId{get;set;}
public string Name{get;set;}
}

我们从中选择的表：

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table values_store
(
ss_id varchar(50),
user_name varchar(250)
)

public class ReturnValuesRepository
{
public IEnumerable<ReturnClass> GetReturnClasses()
{
//As commented by @Enigmativity if your `BitDatabaseEntities` is `IDisposable` (sure if it inherits from `DbContext`) you should wrap it in a `using` block
using(var db = new ValuesEntities())
{
var list = (from r in db.values_store select new
ReturnClass
{
SSId=r.ss_id,
Name=r.user_name
}).AsEnumerable();

return list;
}
}
}