myContext context = new myContext();

string esql = "SELECT VALUE it FROM myContext.DBItemList as it";

ObjectQuery<DBItemList> query = context.CreateQuery<DBItemList>(esql);

Console.WriteLine(query.CommandText);//获取esql

Console.WriteLine(query.ToTraceString());//获取sql

输出结果：

SELECT VALUE it FROM myContext.DBItemList as it

SELECT

[Extent1].[AutoId] AS [AutoId],

[Extent1].[NameID] AS [NameID],

[Extent1].[ItemID] AS [ItemID],

[Extent1].[ItemValue] AS [ItemValue]

FROM [dbo].[DBItemList] AS [Extent1]

原文：http://www.cnblogs.com/foundation/archive/2008/10/06/1304703.html#_Toc211066307

ToTraceString());就是这个方法