code: function(ev, rowIndex) {
  		
  		// Get a particular CellEditor
  		var elCell = ev.target, oColumn;
  		elCell = this.datatable.getTdEl(elCell);
  		if(elCell) {
  			oColumn = this.datatable.getColumn(elCell);
  			if(oColumn && oColumn.editor) {
  				var oCellEditor = this.datatable._oCellEditor;
  				// Clean up active CellEditor
  				if(oCellEditor) {
  					// Return if field isn't validated
  					if( !oCellEditor._inputExField.validate() ) {
  						return;
  					}
  				}
  			}
  		}
  
  		// Only if the cell is inputEx valid
  		this.datatable.onEventShowCellEditor(ev);
  		
     }
docs: Public handler - When clicking on one of the datatable's cells