Defines the caption used in the task pane drop-down list box.
xsd:string
The caption attribute is a required attribute of the taskpane element.
If the caption attibute is contains an empty value, then the default caption of "Form Tasks" is used.
The following is an example of the caption attribute as it is used in the taskpane element:
<xsf:xDocumentClass>
...
<xsf:taskpane
caption="My Custom Task Pane"
href="MyCustomTaskPane.htm"/>
...
</xsf:xDocumentClass>