code: function() {
      var elDropdown = this.getContainerEl().appendChild(document.createElement("select"));
      elDropdown.style.zoom = 1;
      if(this.multiple) {
          elDropdown.multiple = "multiple";
      }
      if(lang.isNumber(this.size)) {
          elDropdown.size = this.size;
      }
      this.dropdown = elDropdown;
      
      if(lang.isArray(this.dropdownOptions)) {
          var dropdownOption, elOption;
          for(var i=0, j=this.dropdownOptions.length; i<j; i++) {
              dropdownOption = this.dropdownOptions[i];
              elOption = document.createElement("option");
              elOption.value = (lang.isValue(dropdownOption.value)) ?
                      dropdownOption.value : dropdownOption;
              elOption.innerHTML = (lang.isValue(dropdownOption.label)) ?
                      dropdownOption.label : dropdownOption;
              elOption = elDropdown.appendChild(elOption);
          }
          
          if(this.disableBtns) {
              this.handleDisabledBtns();
          }
      }
  }
docs: ///////////////////////////////////////////////////////////////////////////  DropdownCellEditor public methods  /////////////////////////////////////////////////////////////////////////// 
  Render a form with select element.
  
  @method renderForm