https://help.syncfusion.com/cr/wpf/Syncfusion.Windows.Controls.Input.SfTextBoxExt.SuggestionPredicate-1.html
Delegate SfTextBoxExt.SuggestionPredicateT - WPF API Reference | Syncfusion
Returns a value based on SuggestionPredicate
api referencedelegatewpfsyncfusion