Linq with entity - DbExpressionBinding requires an input expression with a collection ResultType. Parameter name: input

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I am trying to get the taxcode, taxname and taxrate as list using linq. But it's showing the following error:
"DbExpressionBinding requires an input expression with a collection ResultType.
Parameter name: input"

UAAPPEntities context;
context=new UAAPPEntities();
var x = from txs in context.OTAXs
        where txs.Code.Count()<=1
        select new TaxModel{ taxCode=txs.Code, taxName=txs.Name,taxRate=txs.Rate.Value };
taxList = x.ToList();
return taxList;

Please help me..

Advance Thanks,
Indhu.

Posted 7-Oct-14 0:14am

S.Indhu

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Richard Deeming 7-Oct-14 7:54am

What is the type of the Code property? From the error, it sounds like it's not a collection.

S.Indhu 7-Oct-14 8:07am

This is a column in the table. This code may be duplicate, But i want to retrieve unique code data only.

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S.Indhu · Accepted Answer · 2015-02-21T01:21:00

CSS

hi,

Got solution using the following query:

var x = from t1 in context.OTAXs
                    group t1.Code by new { t1.Code } into g
                    where g.Count()<=1
                    join txs in context.OTAXs on g.Key.Code equals txs.Code
                    select new TaxModel { taxCode = txs.Code, taxName = txs.Code, description = txs.Code, taxRate = txs.Rate.Value };


Happy coding..

Thanks,
Indhu.