Grass Valley Xpanel Vertigo Suite v.4.8 - Manual (Page 115)

Xpanel User Manual 6-13
Adding a data source to an object
Linking data entities to a panel object
Data linking is the process of connecting data to objects, so that the object’s content is
always fed the most recent information from the data source. For example, to display
headlines from a newswire feed you must link the data source to the object displaying the
data (e.g. a text box).
To create a data link:
1.
Ensure that both the Properties view (Ctrl+R) and the Asset Browser (Ctrl+A) are open.
2. Select the Data tab in the Asset Browser and navigate to the schema and data entity
that will populate the panel object.
3. Expand the data entity to display its contents.
4. Add or select the object (Text box, Text or drop-down list) that will receive data from the
data entity. The object’s properties now appear in the Properties view.
5. Create the data link by dragging a data item or data column heading from the data entity
directly onto the object on the panel.
N OTE
When creating data links, bear in mind that only one data item can be assigned to an object.
Therefore, if your data source has multiple columns and you would like to display data from more
than one, you’ll need to set up several text boxes. Furthermore, you’ll need to ensure that the
data item for each text box comes from the same row, otherwise your data will be out of sync.
Figure 6-7. Create a data link by dragging a data item or its column heading directly onto the object
The object’s D ATA S OURCE property is automatically filled in with the data source’s path
(i.e. Data::(,). Note the prefix that
Xpanel uses to specify the origins of the data. See
“Prefixes (Control:, Data:, L:, G:)” on
page 6-14 for more information on the prefixes that Xpanel uses to identify objects and data.