c# - Loading large data -

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After

I have a datatable hava with large amount of data (250K).
I have used DevExpress component and Nhibernate.
DevExpress is the server mode in components, but it does not suit me because I am using nHibernate.
There are many columns in the table as well. And 5 relation tables that are displayed with the main table (records of 250)? What is the best way to get my goal to give advice to my English? Thanks and sorry

Edit:
How with small parts To apply data load?

After

If I understand your question, then you probably need endorsement: Loading and Quantity data displayed. NHibernate supports this with a combination of ICreteria and SetFirstResult / SetMaxResults: 

  IList & LT; MyObject & gt; GetPageOfMyObjects (integer pageSize, integer = zeroBasedPageNumber) MyObject & gt; (); }

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