NTF-PL-SEARCH
This event is fired when the user types a character in the search box and the value in the search box is not currently available in the list box.
The 
No-Search style must not be set. The text typed can be retrieved by inquiring the 
Search-Text property and the EVENT-DATA-1 data item contains the length of the text.
If the 
Sort-Order property is set to 
pl-sort-none, the event is fired for every character inserted or removed in the search-box.
If the 
Sort-Order property is not set to 
pl-sort-none•	 the event is fired for every character removed from the search-box
•	when a character is inserted, the event is fired if the search box text doesn’t match with any item in the list. Instead, if the search box text matches with an item in the list, such item is selected and the event is not fired.
The text matches with an item when the item is equal to the text or if it starts with the text.
 If the 
Sort-Order is set to 
pl-sort-default or 
pl-sort-native-ignore-case or the List-Box has either the  
Upper style or the  
Lower style, then the case is not considered in the comparisons. The case is considered only if the 
Sort-Order is 
pl-sort-native and neither the  
Upper  style nor the 
Lower style is present.