ComboBox and onSelect and validateValue

[wki01]

My code:

Ext.Wki.ComboBox = Ext.extend(Ext.form.ComboBox, {
     initComponent:function() {
         Ext.Wki.ComboBox.superclass.initComponent.call(this); 
     }, 
     onSelect: function(record, index) {   
         this.clearInvalid()
         Ext.Wki.ComboBox.superclass.onSelect.apply(this, arguments);
         return true;     
     },
 validateValue : function(value){
      if (this.allowBlank == false && value.trim() == "") {
         this.markInvalid()
         return false;
      }
      return (Ext.Wki.ComboBox.superclass.validateValue.call(this, value))
 }
});

I would like to force the field to be valid if I select an item from the combo despite the rules of validation.

How can I prevent the validateValue be launched after the onSelect?

Thank you

[BitPoet]

How about just checking whether there is a selection in validateValue?

  ...
  validateValue: function(value) {
    if( this.view.getSelectionCount() > 0 ) {
      return true;
    }
    if( this.allowBlank == false ...