Filtering while only allowing valid input

Suite and Optimus Suite 5
#1

Hi,



I’m trying to get the combo to allow filter mode, but only allow the user to keep typing if their previous character continues a valid selection. So, if the options were:



Afghanistan

Albania

Algeria

Bulgaria



When the user typed “A”, the first 3 options appeared. Then when the user typed “l” (“Al” total), only options 2 and 3 appear. Then, if the user typed “d”, the “d” doesn’t actually show up, and the input box still just says “Al” and shows options 2 and 3.



Is this possible? Thanks!



#2


Hi,


Combo API doesn’t allow to do exactly what you described. But the following approach is possible:


var val ="";
combo.attachEvent(“onChange”,function(){
if(!combo.getOptionByLabel(combo.getComboText())){
combo.setComboValue(val);
}
else val = combo.getActualValue()
})


When a user enters text which doesn’t belong to combo options, the previous selection will be restored.