Drag and Drop Question You create a Visual Studio project named ProductUpdates. You must update data in a table named ProductTable. You must be able to run the code from Visual Studio. You need to…

The correct answer is Create a runnable class and add it to the ProductUpdates project.; Write database manipulation code in the class.; Set the class as the startup object.; Build and run the class. X++ Runnable Class - Exam Question Breakdown Context: Microsoft Dynamics 365 Finance & Operations (D365 F&O). You need to execute X++ code from Visual Studio to manipulate a database table. --- Why This Sequence? Step 1 - Create a runnable class and add it to the ProductUpdates…

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Drag and Drop Question You create a Visual Studio project named ProductUpdates. You must update data in a table named ProductTable. You must be able to run the code from Visual Studio. You need to create an X++ class. Which four actions should you perform in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order. Answer:

Exhibit

Answer Area

Drag items

Add the ExtensionOf attribute to the class.Set the class as the startup object.Write database manipulation code in the class.Build and run the class.Create a runnable class and add it to the ProductUpdates project.Create a class extension of the ProductTable and add it to the ProductUpdates project.

Correct arrangement

Create a runnable class and add it to the ProductUpdates project.
Write database manipulation code in the class.
Set the class as the startup object.
Build and run the class.

Explanation

X++ Runnable Class - Exam Question Breakdown

Context: Microsoft Dynamics 365 Finance & Operations (D365 F&O). You need to execute X++ code from Visual Studio to manipulate a database table.

Why This Sequence?

Step 1 - Create a runnable class and add it to the ProductUpdates project

A runnable class in X++ is one that implements a main() method (the entry point). Without this, there is nothing to execute. You must create this class and add it to the project first because every subsequent step depends on it existing.

A regular class with no main() method cannot be set as a startup object or run directly.

Step 2 - Write database manipulation code in the class

Once the class shell exists, you write the actual logic - SELECT, INSERT, UPDATE, or DELETE operations against ProductTable using X++ DML (e.g., ttsbegin/ttscommit blocks, update_recordset, etc.).

You write code before configuring run settings because the startup object setting is a project property, not a code dependency - but you need code to exist before you validate/run anything.

Step 3 - Set the class as the startup object

In Visual Studio, you right-click the project → Properties → set the Startup Object to your runnable class. This tells the runtime which class to invoke when you press Run.

This comes after writing code (you need to know which class to point to) but before building/running (the runtime needs this pointer configured first).

Step 4 - Build and run the class

With code written and the startup object configured, you build the project (compiles X++ to CIL) and run it. D365 F&O executes the main() method against the connected AOS.

Why the Two Distractors Are Wrong

Rejected Item	Why It Doesn't Belong
Add the `ExtensionOf` attribute to the class	This creates a class extension - used to augment existing classes without modifying them. The task requires a new standalone runnable class, not an extension.
Create a class extension of ProductTable and add it to the project	This would extend the table class, which is for adding methods/fields to the table itself - not for running standalone database manipulation code from Visual Studio.

Common Mistakes

Confusing runnable classes with class extensions - ExtensionOf is for augmentation patterns (non-destructive customization), not for entry-point execution.
Setting the startup object before writing code - Technically possible in any order, but logically you confirm which class to set only after the class has its purpose defined.
Forgetting main() makes a class "runnable" - A class without main() will not appear as a valid startup object option.

Topics

#X++ runnable class#database manipulation#startup object#Visual Studio

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