Onchange event is not working as expected in actionsupport

Question

<apex:pageBlockSection>  
  <apex:inputField value="{!Sobject.field}" required="true" rendered="{!Sobject.field1 == ''}">
    <apex:actionSupport event="onchange" action="{!getInfo}" rerender="frm"/>
  </apex:inputField>
</apex:pageBlockSection>

In this case, action should be triggered whenever a character is entered or deleted from the field. But for me, it is triggered only when the field is out of focus for the same code.

Answer 1

The onchange event will re-evaluate the field value upon focusing in or out. You need to use one of the following events instead:

"onkeydown", "onkeypress", "onkeyup"