Version: GeneXus 16

GeneXus course

Junior Level

Loading Compound Data Types (SDT) using Data Providers

Introduction of the Data Provider object by means of an example, and with the purpose of loading and returning a compound structure (both simple and collection) to do something with it, such as printing it.    

Junior level

Optional



SDT collection: a ranking is countries is to be implemented according to the number of tourist attractions. To do this, a structure is required in memory to temporarily store a collection of items (with the info of each country and the number of attractions in it). The Sort method of an SDT collection is shown to order it. And the For item in Collection command is presented to go over the items in a collection. 
The Data Provider object is presented, with its Output and Collection properties, and its similarity with a For each when it comes to indicating base transaction to navigate a table in the database, and the Where clause to filter the information.  
It is especially recommended to view the video ""Final Overview"" for this course, where some of the aspects stated are questioned, and will be included in upcoming videos for organizational reasons.

Click here for a PDF transcript of the video.

Lessons

Presentation

Objective:
Provide the minimum knowledge required to understand GeneXus and start developing simple applications.

Designed for:
Those who want to start developing applications with GeneXus as quickly as possible.

Course requirements:
For those who don’t have prior programming and database knowledge, reading this material before starting the course is recommended. 

Suggested methodology for this course:
Instructor-led: Follow the instructions in the recommendations and suggestions document, which you can download from the download center together with the course materials.
 
Self-study: Watch each video and try to replicate in GeneXus the demos made by the teacher (except GeneXus Demo). Then do the practical exercises corresponding to the topic discussed in the video.

Suggested course duration: 50 hours
Introduction and demo: 1 hour
Theory/Practice: 40 hours
Review of fundamental concepts: 7 hours
Exam preparation: 2 hours
 
Exam:
Students will be able to take the exam corresponding to the GeneXus Junior Analyst certification. This exam is taken on a computer and includes multiple choice and true/false questions about the topics learned throughout the course, to confirm that the student has effectively learned the essential concepts required for developing applications with GeneXus, according to the Junior Level.
In preparation for the exam, it is suggested that candidates study the material titled Review of fundamental concepts. Also, they can work on this practice exam.
Exam duration: 90 minutes.

>> To take the instructor-led course, we recommend that you check the Course Calendar, contact an Academic Partner in your country, or send us an email to training@genexus.com
 

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Materials

In this section, you will find a PDF document with practical exercises similar to those carried out in each class/video. Some new and optional exercises are included. We recommend that you work on them as you study each topic.

You will also find all the Theory of the course in PDF(transcript of all videos) format to read / print it.

Images: This file contains the images that you will have to use in the Practice exercises.

Conceptual summary: PDF document with a summary of the most important concepts of the course. You are encouraged to read this document at the end of the course, after watching all the videos and doing all the Practice exercises.

Bonus Material

To take the course and work on the exercises you need the trial version of GeneXus.
 
GeneXus Trial  

KB solution of practical exercises
This KB is provided so that you can compare it with yours after doing all the practice exercises:

Name: GeneXus16JuniorCoursePracticalExercises
Server: http://samples.genexusserver.com/v16