Question

I have 10,000 items in a table that displays 20 items per page on client side( items can be additionally filtered)

I need to find item among all elements. Then I need to get the page number, where element located and go to that page on client and select it

My previous question is
Get item index (rownum) .

But I got no answer on it.

Probably there is another way to find the page number where item located without getting all table data?

I am using Linq to Nhibernate, Database – Oracle.

Edit: Thanks for replies, but it’s not so easy

Example:

In table db, i have

 ID          NAME 
 1           Item1 
 2           
 3
 4
 5
 20
 31
 .....        ....
 5000

In client side, i filtered data

query = query.Where(...).Where(...).Where(...).OrderBy(...)

and got result

 ID                                         ROW_NUM_IN_QUERY
 4                                          1
 300                                        2
 2                                          3
 31                                         4
 .....        ....
 402                                        50
 800                                        51

I can’t link to field ID or another in query, because they may be in a different order

I can get rownum at simple SQL. But Linq to NHibernate can’t do it. It havn’t function something like IndexOf or RowNumber without full getting data from table.

this variant :

var indexed = myDataSource.Select( (x,n) => new { Value = x, RowNumber = n } );

Not suported exception during execute query

Answer 1

I abandoned this idea, because i could not implement it with Nhibernate Linq.

But I use easier variant.

I use search as quick filter – display all found data in grid, without going to the page of first found element.

Thx for all replies and comments.