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The readonly event may be called from web pages developed in Web Designer and processed by a USoft page engine service.


Applies to

Occurs when


Read-only custom UI controls

When the value of the control becomes programmatically available

This event applies only to read-only custom UI controls. They are controls with the Type property set to 'custom'.

How to use

Find or create an Event Listener object with Event Type = readonly. Event Listeners are in the Web Designer Controls catalog:


Insert the event listener into the object for the read-only custom UI control. Insert a callClientScript action into the event listener. Use this action's Script property to code the behaviour that you want to see when the event occurs.