Dell Vizioncore Manual de usuario descargar pdf (Pagina 36)

36 vFoglight

Web Component Tutorial

Before You Start

The first thing you have to decide is whether you want to take the top-down or the

bottom-up approach. In the top-down approach, you create the dashboard first, then you

populate it with components. In the bottom-up approach, you focus on the information

you want to display, which forces you to think about which query or queries you want to

build and how you want to present the results, such as in a table, or a chart, or some

other component. The dashboard is a container that holds the components, so you define

it after knowing what it will contain.

Since this is a tutorial, we will do a bit of both approaches. Our stated goal is to display

a hosts table in the dashboard. That is our design for the moment. It is not really a

design, just a bit of an outline, but it will serve to guide us as we build the view.

With that much of a goal in mind, we will start the bottom-up approach with a query.

Next, we will use the query to populate the rows of a table and then add the table to an

empty dashboard.

Anatomy of a Typical Dashboard

• A dashboard usually consists of a container, which in turn contains views.

• Views are assembled from Vizioncore View Components.

• View components are often required to display specific data, which may be set at

design time or may be based on dynamically-generated runtime values. It is

possible to configure a dashboard to respond to user interaction, which demands,

in addition to input components and query-based data retrieval, a mechanism for

passing information in the form of parameters.

• In the Web Component Framework, the query mechanism allows you to retrieve

data from a data source, for example, vFoglight data from a vFoglight data

source.

• Queries can be parameterized, allowing them to be modified at run time.

• A flow mechanism permits pages to be updated or linked to other pages.

• A context mechanism allows values, which may be objects, to be passed to

dependent pages. Thus, dynamically-retrieved data on a parent page can be

passed to a dependent page.

The starting place for working with View Components is to choose, from the left panel,

in the Dashboards group, Configuration > Definitions. Make this selection to follow

along with the tutorial. (Your user module is labeled My Definitions.)

1 2 ... 31 32 33 34 35 36 37 38 39 40 41 ... 140 141

Sin comentarios

Dell Vizioncore Manual de usuario Pagina 36