Page Composer Conditional Display of Negotiated

Summary

Unable to define expression that displays Negotiated only when Agreement is not null

Content

Using Page Composer in order to create a conditional logic for the display of 'Negotiated' checkbox located inside the 'Enter Requisition Lines' screen. Desire that 'Negotiated' will only display when an Agreement number is entered on the form,

From Structure I have selected <>selectBooleanCheckbox: Negotiated field and under 'Show Component' selected Expression Builder and added expression:

#{bindings.AgreementNumber.inputValue != null ? true: false}

Closed the Page Composer and change Sandbox mode to 'Preview'. Behavior result is 'Negotiated' always shows regardless of value presence in Agreement field.