Not getting millisecond data when executing SProc via Entity Framework

Question

Im having some issues getting all the data from my sql server database. Below is one of the DateTime values i have stored in my database:

2012-12-31 21:39:08.8940

Unfortunately, when i run the same SProc via entity framework, i get the following instead:

2012-12-31 21:39:08

Is there anyway to correct this so all the data is being returned?

The SProc code is as follows:

CREATE PROCEDURE [dbo].[DataRetrieval]
    @StartDateTime      DateTime2(4)        ='2012-12-31 21:59:08.2050',
    @EndDateTime        DateTime2(4)        ='2012-12-31 21:59:08.2050',
    @Pair               nchar(6)            ='EurUsd'
AS

SET NOCOUNT ON;
BEGIN

SELECT Pair,DateTime,Ask,Bid,AskVolume,BidVolume
FROM 
    dbo.ForexData
WHERE
    PAIR = @Pair
    AND ( DateTime = @StartDateTime  
               OR DateTime >= @StartDateTime )
    AND ( DateTime = @EndDateTime
           OR DateTime < @EndDateTime )
ORDER BY
    DateTime
END
GO

Answer 1

确保在* .edmx中的ComplexType部分下，正确填充了Precision属性。