Use navigation elements to access the runtime hierarchy

In addition to using special variables, you can also use navigation elements to reference fields values and variables.

Smart parameters support the following navigation elements:

Table 1. Smart parameter navigation elements
Example	Description
\< `field_name`>	References a field that is 1 level beneath the current object
..\< `field_name`>	References a field at the same level as the current object

When you reference a field by specifying just the name of the field, Datacap retrieves the text value of the field. You can obtain the value of a variable that is associated with the field by appending .<variable_name>, for example: ..\Car_Type.TYPE.

You cannot use this syntax to access variables on parent objects.

Examples

In these examples, the rr_Get action is bound to a field.

In the first example, the smart parameter returns the text of the Car_Type field on the current page.
In the second example, the smart parameter returns the value of the TYPE variable of the Car_Type field.

Action: rr_Get("..\Car_Type")     <F id="Car_Type">
Return value: SUV                  <V n="TYPE">Car_Type</V>
<C cn="10" cr="588,748,600,769">83</C>  <-- ASCII ‘S'
Action: rr_Get("..\Car_Type.TYPE")  
<C cn="10" cr="605,748,620,769">85</C>  <-- ASCII ‘U'
Return value: Car_Type
<C cn="10" cr="625,748,643,769">86</C>  <-- ASCII ‘V'
                                  </F>