Dell Vizioncore Instrukcja Użytkownika Pobierz pdf (Strona 31)

Using the Web Component Tutorial 31

Introduction

• Time Range: if available, applies to all views

• Nothing: if multiple time ranges are represented

• Page Scope Actions, such as

• View menu: actions you can perform on the view

• Help menu: help for all components on the current page

• Optional Page Scope Actions, such as:

• Time Range: change the time range of the page

• View menu: in a browser, causes a switch to a different page

View Layouts

These layouts are available:

Grid

• Views can size themselves appropriately or be hard-coded to a fixed size.

• Views with title bars can be collapsed and expanded.

• Fixed size views grow their own scroll bars as necessary while variable sized

components cause the browser to grow scroll bars as necessary.

Fixed

• All views are exactly placed and sized. This layout is useful for monitoring

views with fixed real estate when you want to make sure that all the important

information is always on the screen.

Portal

• Allows the page to be dynamically configured by a user. The major drawback

of this layout is that the components cannot interact in any complex way.

Data Sources

Data sources encapsulate all that the system knows about the data and yet cleanly

separates knowledge of the data from how it is presented.

The data source is organized as a dynamic graph of objects, starting from a root that

represents the entire data model.

“Objects” are defined in the API and are not tied to the creation of any particular Java

Object.

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Dell Vizioncore Instrukcja Użytkownika Strona 31