Linq To SQL - Specified cast is not valid - SingleOrDefault()

Posted by NullReference on Stack Overflow See other posts from Stack Overflow or by NullReference
Published on 2010-03-12T21:53:12Z Indexed on 2010/03/12 21:57 UTC
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LINQ

I am trying to do the following...

Request request = (from r in db.Requests where r.Status == "Processing" && r.Locked == false select r).SingleOrDefault();

It is throwing the following exception...

Message: Specified cast is not valid.

StackTrace: at System.Data.Linq.SqlClient.SqlProvider.Execute(Expression query, QueryInfo queryInfo, IObjectReaderFactory factory, Object[] parentArgs, Object[] userArgs, ICompiledSubQuery[] subQueries, Object lastResult) at System.Data.Linq.SqlClient.SqlProvider.ExecuteAll(Expression query, QueryInfo[] queryInfos, IObjectReaderFactory factory, Object[] userArguments, ICompiledSubQuery[] subQueries) at System.Data.Linq.SqlClient.SqlProvider.System.Data.Linq.Provider.IProvider.Execute(Expression query) at System.Data.Linq.DataQuery1.System.Linq.IQueryProvider.Execute[S](Expression expression) at System.Linq.Queryable.SingleOrDefault[TSource](IQueryable1 source) at GDRequestProcessor.Worker.GetNextRequest()

Can anyone help me? Thanks in advance!

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