LINQ to Entity, using a SQL LIKE operator
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by Mario
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Published on 2010-03-22T15:58:09Z
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2010/03/22
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I have a LINQ to ENTITY query that pulls from a table, but I need to be able to create a "fuzzy" type search. So I need to add a where clause that searches by lastname IF they add the criteria in the search box (Textbox, CAN be blank --- in which case it pulls EVERYTHING).
Here is what I have so far:
var query = from mem in context.Member
orderby mem.LastName, mem.FirstName
select new
{
FirstName = mem.FirstName,
LastName = mem.LastName,
};
That will pull everything out of the Member table that is in the Entity object.
Then I have an addition to the logic:
sLastName = formCollection["FuzzyLastName"].ToString();
if (!String.IsNullOrEmpty(sLastName))
query = query.Where(ln => ln.LastName.Contains(sLastName));
The problem is when the search button is pressed, nothing is returned (0 results). I have run the query against the SQL Server that I expect to happen here and it returns 6 results.
This is the query I expect:
SELECT mem.LastName, mem.FirstName FROM Members mem WHERE mem.LastName = 'xxx'
(when xxx is entered into the textbox)
Anyone see anything wrong with this?
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