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Software ==>	Visual C# (55 exercises)
Topic ==>	Grouping using LINQ (2 exercises)
Level ==>	Harder than average
Subject ==>	C# training

Group (and reorder) films by studio using LINQ to SQL

This exercise is provided to allow potential course delegates to choose the correct Wise Owl Microsoft training course, and may not be reproduced in whole or in part in any format without the prior written consent of Wise Owl.

Before you can do this exercise, you'll need to download and unzip this file .

If you haven't already done so, go into SQL Server Management Studio and open the file in the above folder and run its script. This should generate a Movies database. Create an ADO entity model based upon this database.

The method of creating an entity model is not given here, since it varies according to which version of Windows Forms, Visual Studio, LINQ to SQL Classes and Entity Frameworks you are using. If in doubt, ask your trainer!

Create a new form called frmStudios. Within this write code using the LINQ group operator to summarise the films by studio (use Skip to miss out the first one, though, as this is 20th Century Fox which swamps everything else):

List of films by studio

The start of the output from your code.

Too easy? Change the sort order of the studios by grouping them into another enumerable set, and selecting that as the output from your query expression:

List of films sorted

This time we're skipping the first 5 studios, as this will miss out behemoths like Warner Brothers and Walt Disney.

Close down any files that you have open.

You can unzip this file to see the answers to this exercise, although please remember this is for your personal use only.

You can find other training resources for the subject of this exercise here:

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