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Configuring Views and Context 127

Context and the Context Tab

Examples of dynamic context keys are:

There are other components that have properties associated with dynamic context keys.

See the Web Component Reference pages for details.

Flow Context

You can create context keys that relate to a flow action. For example, suppose you want

to select a host from a table showing a list of Hosts. To get access to the selected Host

you have to define a context element for use as a Flow Context for table rows. To do

this, define the Selected Row built-in context as Host. Then you can use it to change

pages to a view that requires Host as an input. See “Additional Context” on page 125 to

learn about adding more context elements to the flow.

Validation of Context in the Editors

When checking the required inputs of a contained view, optional and internal inputs are

provided at runtime by either the container or another contained view.

Type Casting Context

The strict typing nature of the Web Component Framework disallows arbitrary casting

of one type to another, since in any responsible UI development you need to detect and

prevent incorrect input.

On-null

Many places in the flow and context definition allow you to specify the value to use if

the incoming value is an unexpected null value.

Dynamic Context Key In Component

metric Bar Gauge

currentDataParent Cluster Bar Chart

currentItem Drop-Down List, Filter

currentRow Row-Oriented Table

currentNode Tree

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