Solved

Linq to SQL Query with null values

Posted on 2010-11-17
1
662 Views
Last Modified: 2013-11-11
I am trying to convert a SQL query to a Linq query, but not getting the expected results.

SQL Query
SELECT     ST.stateid, ST.statename, SM.userid
FROM         dbo.tbl_servicearea_matrix AS SM RIGHT OUTER JOIN
                      dbo.tbl_states AS ST ON SM.stateid = ST.stateid
WHERE     (SM.userid = @userid) OR
                      (SM.userid IS NULL)

Linq Query
var rsServiceArea = from ST in DB.tbl_states
                                join SM in DB.ServiceAreas on ST.stateid equals SM.stateid                                
                                where SM.userid == IMOSAPI.GetActiveUserID || SM.userid == null
                                select new {ST.stateid,ST.statename,SM.userid};
        }

My SQL query returns all the states and the Linq only returns the states with userid.
0
Comment
Question by:CodeMarx
1 Comment
 

Accepted Solution

by:
CodeMarx earned 0 total points
ID: 34158740
Got it by doing this...

var rsServiceArea = from ST in DB.tbl_states
                                join SM in DB.ServiceAreas on ST.stateid equals SM.stateid into SAM
                                from SM in SAM.DefaultIfEmpty()
                                where SM.userid == IMOSAPI.SetActiveUserID || SM.userid == null
                                select new {
                                    StateID = ST.stateid,
                                    StateName = ST.statename,
                                    Selected = SM == null ? false : true};
0

Featured Post

Networking for the Cloud Era

Join Microsoft and Riverbed for a discussion and demonstration of enhancements to SteelConnect:
-One-click orchestration and cloud connectivity in Azure environments
-Tight integration of SD-WAN and WAN optimization capabilities
-Scalability and resiliency equal to a data center

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Flash (http://en.wikipedia.org/wiki/Adobe_Flash) has evolved over the years to where it has become a masterful tool for displaying content screen.  It has excellent layout placement, UI precision as well as rendering capabilities. This, along with t…
Recently while returning home from work my wife (another .NET developer) was murmuring something. On further poking she said that she has been assigned a task where she has to serialize and deserialize objects and she is afraid of serialization. Wha…
I've attached the XLSM Excel spreadsheet I used in the video and also text files containing the macros used below. https://filedb.experts-exchange.com/incoming/2017/03_w12/1151775/Permutations.txt https://filedb.experts-exchange.com/incoming/201…

809 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question