Entitydatasource filter with IN clause

hello guys,
i want to filter Entitydatasource  by a list of number but i got this error
The query syntax is not valid. Near term ',', line 6, column 48.
what is wrong with this code?
BookEntityDataSource.Where="it.CategoryId_FK=@Cat||it.CategoryId_FK IN (1,3,11,8,6,7,10,95,4,5)";