Lab13: Form Methods Quiz

Which standard form method is the first to execute when a form is opened, responsible for initializing the object and processing arguments?

run()

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active()

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init()

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executeQuery()

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In the init() method, what is the primary purpose of accessing element.args()?

To initialize the database connection.

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To retrieve parameters, records, or callers passed from the previous form.

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To refresh the screen design.

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To define the form's caption.

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Analyze the following code snippet from a form’s run() method. What is the purpose of the if block?

Code snippet

public void run()

{

super();

if (callerRecord)

{

FMCustomer_DS.findRecord(callerRecord);

}

To delete the record passed by the caller.

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To validate the caller record before saving.

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To locate and select the record passed by the caller in the grid.

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To filter the datasource so only that record is visible.

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You have added a custom method updateDesign() to your form. Where is the best place to call this method to ensure the UI is correct immediately after the form opens?

In the destroy() method.

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In the close() method.

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In the init() method (after super) or the run() method.

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In the main() method of the table.

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Which object does the keyword element refer to in form methods?

The current Data Source record.

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The FormRun instance (the form itself).

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The current Grid control.

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The SQL database connection.

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What is the standard return type of the task() method, and what does it handle?

void; It handles database synchronization.

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int; It handles system commands like Save, New, or Delete (e.g., #taskSave).

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boolean; It validates field data.

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container; It stores the form state.

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In the close() method, why is it common to see code like numberSeqFormHandler.formMethodClose()?

To generate the next number sequence.

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To ensure the number sequence implementation cleans up (e.g., aborts unused numbers) when the form closes.

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To save the record one last time.

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To refresh the calling form.

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If you need to manipulate a control (like a TabPage) by name in your X++ code (e.g., CustomerPaymentInfo.visible(false)), what property must be set on that control in the designer?

Visible = Yes

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Enabled = Yes

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AutoDeclaration = Yes

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Mandatory = Yes

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What is the purpose of the element.args().dataset() check in the init() method?

Code snippet

if (element.args().dataset() == tableNum(FMCustomer))

{

// logic

}

To verify that the record passed to the form belongs to the expected table.

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To check if the database is online.

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To check if the user has permission to view the table.

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To create a new table buffer.

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Which method would you use to change the title bar text of the form dynamically at runtime?

element.design().caption("New Title");

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this.name("New Title");

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element.label("New Title");

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element.setTitle("New Title");

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You are implementing a custom setContext() method to switch the form view. Which macro is commonly used to trigger the “Details View” mode?

#taskSwitchToDetailsView

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#taskFormView

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#taskDetailMode

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#taskGridHide

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In the CustTable source code provided, what does the refreshHeaderTabPages() method do?

It reloads the entire browser page.

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It forces a redraw of the form controls to fix glitching graphics.

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It executes the query for specific child data sources (like Direct Debit) only if their tab is currently active.

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It resets all fields to their default values.

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What is the primary difference between init() and run()?

run() happens before init().

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init() creates the form object and structure; run() renders the window on the client and displays it.

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init() is for logic; run() is for database access.

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There is no difference; they are interchangeable.

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Which statement correctly retrieves the record passed to the form?

Common record = element.data();

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Common record = this.record();

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Common record = element.args().record();

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Common record = element.getCaller();

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If you want to check if the form was opened in “New” mode (e.g., clicking a “New” tile), which method on element.args() should you check?

openMode()

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parmEnum()

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menuItemType()

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caller()

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Analyze the following code. What does it do?

Code snippet

public void updateControls()

{

DeleteButton.enabled(FMCustomer.DriverLicense != “”);

}

It deletes the driver's license if the button is clicked.

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It enables the Delete button only if the DriverLicense field is not empty.

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It hides the Delete button if the DriverLicense is empty.

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It forces the user to enter a DriverLicense.

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Why might you use element.args().caller() in the close() method?

To close the calling form as well.

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To refresh the DataSource of the calling form (e.g., refreshing a grid after adding a record).

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To check security permissions.

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To pass arguments back to the main menu.

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In the CustTable code, what is the purpose of Box::yesNo(…) inside a validation method?

To draw a rectangle on the screen.

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To prompt the user with a Yes/No dialog box for confirmation.

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To check a checkbox automatically.

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To log a warning to the Action Center.

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When overriding task(), why is it critical to call super(_task)?

To ensure the standard system behavior (like actually saving or deleting the record) still occurs.

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To reset the task ID to zero.

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To close the form.

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It is not critical; super() is optional in task().

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Which helper class is often initialized in init() and finalized in close() to handle automatic ID generation?

SysQueryRunner

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NumberSeqFormHandler

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DialogButton

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FormFunctionButton

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