Skip to main content

This content has been archived and is no longer being updated. Links may not function; however, this content may be relevant to outdated versions of the product.

Support Article

Parameter name appears NULL when passing from AutoComplete



You, as an application developer, use the OOTB 'AutoComplete' format in a section with the DataSource set to 'Activity'. When you assign a property (for example: [.test]) under parameter textbox and run it, the value is generated on the Clipboard but not observed in tracer.

Steps to Reproduce

1. Create a section with autocomplete and input activity and params in to it.. 
2. Run it to observe that there is a NULL value in tracer. 

Root Cause

The root cause of this problem is a defect in custom application code/rules. No editable control is bound to the property that is being passed to Autocomplete activity.  


This issue is resolved through the following Local-change: 

Drop "HiddenValue" control anywhere in the section and bind it to the property that is getting passed to the autocomplete activity. Use [.propertyname] syntax in autocomplete configuration.


Published June 16, 2015 - Updated October 8, 2020

Was this useful?

0% found this useful

Have a question? Get answers now.

Visit the Collaboration Center to ask questions, engage in discussions, share ideas, and help others.

Did you find this content helpful?

Want to help us improve this content?

We'd prefer it if you saw us at our best.

Pega Community has detected you are using a browser which may prevent you from experiencing the site as intended. To improve your experience, please update your browser.

Close Deprecation Notice
Contact us