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Understanding SD application development

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Work With for Smart Devices object

Official Content
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Basically, the Work With Pattern for Smart Devices (WWSD) is focused on a user view. In user interfaces, we frequently find a view that shows a list of items and when one of them is selected, that item's detail is displayed. Sometimes this pattern is called Master-Detail.

Given that, we have a list of items and we want to perform an action on them, we have called it Work With Pattern.
The two key elements of the Work With Pattern: List and Detail.

MenuListDetail_20171215113912_1_png

List

It is the list on which we will be working on. Conceptually, what is associated with a list is an SDPanel that contains a grid with the data. Over this panel, we have a default Action, which basically indicates that when an item is selected, its Detail has to be displayed. Given that in concept it is just a panel, in the list, we have the same elements of a panel: actions, conditions, layouts by platform, etc.

  • List of Properties (Houses, Apartments)
  • List of Real Estate Companies

It is possible to apply filters, orders, and searches to lists. There are also several ways to show data and it is even possible to act upon the list.

Detail

It is the panel in which the selected item details will be displayed. Since it is a panel, it also has the same elements as Panel for Smart Devices object.

For example, when looking at the list of properties, selecting one gives access to:

  • Detailed info on the property
  • Related information (e.g. its appointments)
  • Actions (schedule a visit to the site, send an email to the real estate firm offering the property, approve orders, etc.)

When displaying a set of data and its relations, there's always the problem of how to show this data in an ordered manner that can be understood by the end user. For this reason, the Work With Pattern provides the concept of Section within a Detail.

Sections

A Section is just a group that allows me to separate certain operations of the user interface within the detail. Once again, panels are the basic elements that allow me to manipulate a section. That is to say, on a certain section I have data, actions, layouts, etc.

When using a Section, we must have a way to organize them within a Detail. To do so, in the Detail layout we can make reference to one or more sections. Given that the Detail allows multiple layouts per platform, it may happen that some sections are displayed on one platform but not in another.

Work With for Smart Devices in GeneXus

To implement this functionality in GeneXus, the Work With for Smart Devices pattern can also be applied to transactions that will be used by applications executed on Smart Devices. Also, it can be created as a "Work With for Smart Devices" object, not associated with any transaction, in which case the developer will have to design it entirely from scratch.

Videos

Start Video Smart Device Conceptual Model
Start Video General Aspects and List layout



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