ExtJs: Search / Filter within a ComboBox

Question

I\'ve the following problem / question in ExtJs 2.3:

I\'d like to do a search within a combobox. I\'ll give you an example:

Ext.comboData.names = [[\         


        

Answer 1

just remove that lister and override the doQuery method as follows

if(combo!=null){
    combo.doQuery = function(q, forceAll){
  q = Ext.isEmpty(q) ? '' : q;
  var qe = {
      query: q,
      forceAll: forceAll,
      combo: this,
      cancel:false
  };
  if(this.fireEvent('beforequery', qe)===false || qe.cancel){
      return false;
  }
  q = qe.query;
  forceAll = qe.forceAll;
  if(forceAll === true || (q.length >= this.minChars)){
      if(this.lastQuery !== q){
          this.lastQuery = q;
          if(this.mode == 'local'){
              this.selectedIndex = -1;
              if(forceAll){
                  this.store.clearFilter();
              }else{
                  this.store.filter(this.displayField, q, true,false); // supply the anyMatch option
                  }
                  this.onLoad();
              }else{
                  this.store.baseParams[this.queryParam] = q;
                  this.store.load({
                      params: this.getParams(q)
                  });
                  this.expand();
              }
          }else{
              this.selectedIndex = -1;
              this.onLoad();
          }
      }
  };
}