FirstOrDefault< TSource >() [2/4]

static ? TSource System.Linq.Queryable.FirstOrDefault< TSource > ( this IQueryable< TSource > source, Expression< Func< TSource, bool > > predicate )

inlinestatic

Definition at line 993 of file Queryable.cs.

    {
        if (source == null)
        {
            throw Error.ArgumentNull("source");
        }
        if (predicate == null)
        {
            throw Error.ArgumentNull("predicate");
        }
        return source.Provider.Execute<TSource>(Expression.Call(null, CachedReflectionInfo.FirstOrDefault_TSource_2(typeof(TSource)), source.Expression, Expression.Quote(predicate)));
    }

References System.Linq.Error.ArgumentNull(), System.Linq.Expressions.Expression< TDelegate >.Call(), System.Linq.CachedReflectionInfo.FirstOrDefault_TSource_2(), System.Linq.predicate, System.Linq.Expressions.Expression< TDelegate >.Quote(), and System.Linq.source.