XPath Builder

To build XPath expressions, you can use XPath Builder. XPath Builder includes the process data tree, a work area where you create the expression, a function library, and an operator library:

The process data tree, which appears in the uppermost pane of XPath Builder, shows the data model of the process in a tree structure. The data tree provides access to the information that is stored for the process, such as variable values and values in form data.
The expression work area, which appears in the pane below the process data tree, is an editor where you author XPath expressions. When you double-click items in the data tree or the function and operator libraries, the items are inserted in the expression work area at the position of the cursor.
The function and operator libraries, which appear in the lowermost pane in XPath Builder, provide XPath functions and operators that you can apply to nodes in the data tree.

Tip: Both functions and operations act on data values; however, functions act on parameter values, and operations do not. Operations act on values located before and after the operation; for example, the add operation in the expression integer1 + integer2 acts on the values integer1 and integer2.

You can open XPath Builder from the Properties view when the view is showing properties for routes and for operations, as well as from the dialog boxes for configuring events. An ellipsis button is provided beside text boxes where you can use XPath Builder to supply a value.

After you author the XPath expression and click OK in XPath Builder, the text in the expression work area populates the text box that is associated with the ellipsis button.

Tip: If you know the XPath language, you can enter expressions manually instead of using XPath Builder.

XPath Builder

See also