Не могу понять в чем ошибка
| Код |
public static IQueryable<TEntity> LikeAny<TEntity>(
this IQueryable<TEntity> query,
Expression<Func<TEntity, string>>[] selectors,
IEnumerable<string> values)
{
if (selectors == null)
{
throw new ArgumentNullException("selector");
}
if (values == null)
{
throw new ArgumentNullException("values");
}
if (!values.Any())
{
return query;
}
Expression[] body = new Expression[selectors.Count()];
int i = 0;
ParameterExpression[] p = new ParameterExpression[selectors.Count()];
foreach (Expression<Func<TEntity, string>> selector in selectors)
{
p[i] = selector.Parameters.Single();
var conditions = values.Select(v =>
(Expression)Expression.Call(typeof(SqlMethods), "Like", null,
selector.Body, Expression.Constant("%" + v + "%")));
body[i] = conditions.Aggregate((acc, c) => Expression.Or(acc, c));
i++;
}
var expr = Expression.Lambda<Func<TEntity, bool>>(body.Aggregate((acc, c) => Expression.Or(acc, c)), p);
return query.Where(expr);
}
|
на предпоследней строке (var expr = Expression.Lambda<Func....)
выдает ошибку | Код |
Incorrect number of parameters supplied for lambda
|
вызывается метод так
| Код |
(from b in Blogs
where b.BlogHide == 0
select new BlogsList { Blog_ = b})
.LikeAny(new Expression<Func<BlogsList, string>>[] { s => s.Blog_.BlogMessage, d => d.Blog_.BlogMessage }, terms)
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