filter in ria service

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hi everyone
when filter data in domain data source class
as example

C#

public IQueryable<product> GetProduct2(int empno)
      {
          return this.ObjectContext.Product.Where(sa => sa.prono == empno);

      }

so this filter before fetch data from database
or after fill data in memory and filter from memory
(this filter in database or memory )

thanks for anyhelp

Posted 17-Jun-12 15:16pm

Mostafa Elsadany

Updated 17-Jun-12 15:32pm

Wes Aday

v2

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[no name] 17-Jun-12 22:39pm

Your question is not very clear. Are you asking if you should filter your data as you get it from a database or pull it from the database and then filter the data?
Why would you want to filter the data after querying the database? Perform one step not two.

Mostafa Elsadany 18-Jun-12 14:47pm

thanks for answer

wcf ria service in silverlight when filter data in domain service class
this filter select all data from data base and filter in from memory
or select data depend on condition from database

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Christian Amado · Answer 1 · 2012-07-30T11:34:00

Solution 1

Your code applies over the Entity Model not in database.

So the model pass the query to the database and the database process the query.

Regards.

Posted 30-Jul-12 11:34am

Christian Amado

Comments

Mostafa Elsadany 30-Jul-12 18:59pm

so the filter on data in database before retrieve to apps

thanks for help

Christian Amado 30-Jul-12 23:22pm

As you said =)