Dell Vizioncore Podręcznik Użytkownika Pobierz pdf (Strona 125)

Configuring Views and Context 125

Context and the Context Tab

Internal Context

Marking a context as Internal means that the input is required for internal operation of

the table and is much like the optional input, except that changes to this value by the

component are NOT propagated to the rest of the page on an update. However, the value

IS propagated to the children of the component.

Internal Context items behave like optional inputs, except that when a context element

changes in a nested level, the changes do not traverse up the hierarchy to the parent

level. This makes it possible to have similar and dynamic views that use the same key

names and types co-existing on the same page without adversely affecting each other.

You can use this type of context in a portlet with a customizer. For example, the

customizer allows you to select which Host is displayed by the portlet. It is important

for the component to mark the Host as internal to make sure that if two identical views

are on the page at the same time, but each show data from a different host, that they do

not conflict with each other.

Caution A view with an internal context cannot be added to a container that has the same context

input, because if the view’s context changes and the page is updated, this update are not

be passed on to the container.

Internal Context is not for propagating context from one view to another within a page. It

is designed to stop propagation of context when different parts of the page have different

values for the same context.

For more information see “Configuring Views” on page 102.

Additional Context

Additional Context is context that is added by the view designer. You can add context

using the Additional Context tab in the Module Contents pane to the following:

•Views

• Specific Instance of a View

•Flows

Additional Context for a View

Additional Context for a view allows you to supply additional information that your

view can use inside its configuration or additionally, if it is a container view, for use by

its children.

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Dell Vizioncore Podręcznik Użytkownika Strona 125