code: function() {
      this.validateColumnWidths();
      
      for(var allKeys = this._oColumnSet.keys, i=0, len=allKeys.length, col; i<len; i++) {
          col = allKeys[i];
          if(col._ddResizer) {
              col._ddResizer.resetResizerEl();
          }
      }
  }
docs: Setting display:none on DataTable or any parent may impact width validations.
  After setting display back to "", implementers should call this method to
  manually perform those validations.
  
  @method onShow