Entity Framework Contains still defaulting to unicode for varchar fields - by BJJ1

Status : 

  Fixed<br /><br />
		This item has been fixed in the current or upcoming version of this product.<br /><br />
		A more detailed explanation for the resolution of this particular item may have been provided in the comments section.

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ID 650410 Comments
Status Closed Workarounds
Type Bug Repros 2
Opened 3/9/2011 9:53:39 AM
Access Restriction Public


Using the Contains extension method on a varchar field results in SQL that has unicode for the strings in the SQL's IN clause.

So far a varchar field 'Code' the resulting SQL is

WHERE [Extent1].[Code] IN (N'Code1', N'Code2', N'Code3')

when doing a cmpare this works as expected and you get

WHERE 'Code1' = [Extent1].[Code]
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Posted by André Saraiva on 4/19/2012 at 4:50 PM
Isn't there any hotfix or update for this issue yet?

Posted by Microsoft on 3/30/2011 at 4:13 PM
Thank you for submitting this issue. We are planning to address it for the next release.

Thank you,
Kati Iceva
Entity Framework Developer
Posted by Taz0 on 3/21/2011 at 8:04 AM
This still happens in EF 4.0, even though it was explicitly mentioned as fixed in section 5 of this article:


It seems the fix only applies to single values, and not to many other usage forms. This is unacceptable - it makes EF completely useless in even the most basic index seeks on non-Unicode columns. Please fix this!
Posted by Microsoft on 3/9/2011 at 9:20 PM
Thank you for reporting the issue.
We are routing this issue to the appropriate group within the Visual Studio Product Team for triage and resolution.These specialized experts will follow-up with your issue.
Posted by Microsoft on 3/9/2011 at 10:13 AM
Thank you for your feedback, we are currently reviewing the issue you have submitted. If this issue is urgent, please contact support directly(http://support.microsoft.com)