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• form.load : This property is true when the form is first loading. It is useful for setting default values via rules that you need to be set before the user starts interacting with the form. This also holds true for flows. This property is true when each step of a workflow is first loading.
• form.unload : This property is true when users click the form's submit button. It is useful for setting control values just prior to the execution of the form's Doc Actions and Form Actions. This also holds true for flows. This property is true when the user clicks the continue button for each workflow step.
• form.positionUpdated : This property is used for the Geo location feature. You can fire a rule using this special identifier every time the position is updated.
  

Examples of identifiers used in  rules are:

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For complete details of integration with your backend systems to provide dynamic data into your forms, see the section on integration.

Reusing

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Fetching dynamic content from your backend system can be the source of degrading form performance. If your form needs to use the dynamic content multiple times you can improve performance by fetching the content once from the http.get() and saving the returned JSON string in a hidden text form control. Then you can later read the text control value and eval it again rather than having to call your backend system multiple times.

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