Difference between following

Difference between edit and display method

Display Indicates that the method's return value is to be displayed on a form or a report.

The value cannot be altered in the form or report

Edit Indicates that the method's return type is to be used to provide information for a field that is used in in a form. The value in the field can be edited.

Difference between perspectives and table collection

Perspectives can organize information for a report model in the Application Object Tree (AOT).

A perspective is a collection of tables. You use a report model to create reports.

Table collection is a collection of table, which sharing across all the virtual companies.

What are the 4 types of files we need to copy to the standard folder?

*.aod - application object data file

*.ahd - Application Online Help Data file

*.ald - Application Label data file.

*.add - Application Developer Documentation Data file

*.khd - Kernel Online Help Data

And other files are

*.ahi - Application Online Help Index files

*.adi - Application Developer Documentation Index files

*.ali - Application Label Index files

*.alt - Application Label Temporary file.

*.alc - Application Label Cache file

*.aoi - Application Object Index file

*.khd - Kernel Online Help Data

Why we use virtual companies?

Virtual company accounts contain data in certain tables that are shared by any number of company accounts. This allows users to post information in one company that will be available to another company

How can we restrict a class to be further extended?

using Final Keyword for ex: public final class <ClassName>

Which classes are used for data import export?

SysDatalmport and SysDataExport

From which table u can get the user permissions stored in Ax?

AccessRightList table

What should we do if we need last record to be active when a form is opened?

In properties of datasource table set the StartPosition property as last.

What is the sequence of events while a report is generated?

Init, Run, Prompt, Fetch, send, Print

What is an index?

An index is a table-specific database structure that speeds the retrieval of rows from the table. Indexes are used to improve the performance of data retrieval and sometimes to ensure the existence of unique records

Define IntelliMorph

IntelliMorph is the technology that controls the user interface in Microsoft Dynamics AX. The user interface is how the functionality of the application is presented or displayed to the user.

IntelliMorph controls the layout of the user interface and makes it easier to modify forms, reports, and menus.

Define MorphX

The MorphX Development Suite is the integrated development environment (IDE) in Microsoft Dynamics AX used to develop and customize both the Windows interface and the Web interface.

Differentiate refresh(), reread(), research(),executequery()

refresh() will not reread the record from the database. It basically just refreshes the screen with whatever is stored in the form cache.

reread() will only re-read the CURRENT record from the DB so you should use it to refresh the form data if you have added/removed records. It's often used if you change some values in the current record in some code, and commit them to the database using .update() on the table, instead of through the form datasource. In this case .reread() will make those changes appear on the form.

research() will rerun the existing form query against the data

source, therefore updating the list with new/removed records as well as updating existing ones. This will honour any existing filters and sorting on the form.

executeQuery() is another useful one. It should be used if you have modified the query in your code and need to refresh the form. It's like research() except it takes query changes into account.