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#### A.10.1.22 Invoke Datalink Row

Configuration for Invoke Datalink Row action

The Invoke Datalink Row action is only useful (and only visible by default) for a particular type of table, namely the {links}-response table format defined by the DataLink standard. This format is sometimes loosely known as the DataLink format, and is used to represent links of various kinds to external data resources.

Each row of a DataLink table represents a labelled link to some external resource, and this activation action follows that link in some way when the row is activated, providing options for how it is followed. Note however, that if you have a DataLink table loaded and want to invoke its links, the DataLink Window may provide a more straightforward way to do it than this activation action (the functionality is quite similar to what's here, but fewer popup windows are involved).

Because different rows typically have different kinds of links and so can be invoked in different ways, most of the configuration of link-following behaviour is not done in the Configuration panel of the Activation Window, but in a popup window specific to the row when activation takes place. The per-row popup window, if displayed, has the same content as the lower panel of the DataLink Window. Refer to the documentation of that window for more details.

Configuration:

Auto/Manual
  In Manual mode, activating the row pops up the per-row configuration popup window to give you a chance to adjust the options before actually invoking the link. In Auto mode, the link is invoked immediately on row activation, using whatever are the current default options.

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TOPCAT - Tool for OPerations on Catalogues And Tables
Starlink User Note253
TOPCAT web page: http://www.starlink.ac.uk/topcat/
Author email: m.b.taylor@bristol.ac.uk
Mailing list: topcat-user@jiscmail.ac.uk