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plurals

POGet an IDataReader from a typed List
primarykey
Id
2258310
data
AcceptedAnswerId
2258448
AnswerCount
3
ClosedDate
CommentCount
9
CommunityOwnedDate
CreationDate
2010-02-13T16:52:15.340
FavoriteCount
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LastActivityDate
2016-04-07T16:48:10.647
LastEditDate
2010-02-14T23:36:53.670
LastEditorUserId
20893
OwnerUserId
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ParentId
0
PostTypeId
1
Score
33
ViewCount
16620
LastEditorDisplayName
text
Body
I have a <code>List<MyObject></code> with a million elements. (It is actually a SubSonic Collection but it is not loaded from the database). I'm currently using SqlBulkCopy as follows: <pre><code>private string FastInsertCollection(string tableName, DataTable tableData) { string sqlConn = ConfigurationManager.ConnectionStrings[SubSonicConfig.DefaultDataProvider.ConnectionStringName].ConnectionString; using (SqlBulkCopy s = new SqlBulkCopy(sqlConn, SqlBulkCopyOptions.TableLock)) { s.DestinationTableName = tableName; s.BatchSize = 5000; s.WriteToServer(tableData); s.BulkCopyTimeout = SprocTimeout; s.Close(); } return sqlConn; } </code></pre> I use SubSonic's MyObjectCollection.ToDataTable() to build the DataTable from my collection. However, this duplicates objects in memory and is inefficient. I'd like to use the SqlBulkCopy.WriteToServer method that uses an IDataReader instead of a DataTable so that I don't duplicate my collection in memory. What's the easiest way to get an IDataReader from my list? I suppose I could implement a custom data reader (like here <a href="http://blogs.microsoft.co.il/blogs/aviwortzel/archive/2008/05/06/implementing-sqlbulkcopy-in-linq-to-sql.aspx" rel="noreferrer">http://blogs.microsoft.co.il/blogs/aviwortzel/archive/2008/05/06/implementing-sqlbulkcopy-in-linq-to-sql.aspx</a>) , but there must be something simpler I can do without writing a bunch of generic code. Edit: It does not appear that one can easily generate an IDataReader from a collection of objects. Accepting current answer even though I was hoping for something built into the framework. 
Tags
<c#><sql><linq><sqlbulkcopy>
Title
Get an IDataReader from a typed List
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PostAcceptedAnswerId
1. PO
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1. This table or related slice is empty.
PostTypePostTypeId
1. PTQuestion
UserLastEditorUserId
1. USJason Kealey
UserOwnerUserId
1. USJason Kealey
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1. PO
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2. PO
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1. VO
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 POGet an IDataReader from a typed List
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 POGet an IDataReader from a typed List
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