{
final FormulaEditorDialog editorDialog =
GUIUtils.createFormulaEditorDialog(getReportDesignerContext(), AbstractStringValueCellEditor.this);
final String originalFormula = (String) comboBox.getSelectedItem();
final String formula = editorDialog.editFormula(originalFormula, getFields());
if (formula != null)
{
comboBox.setSelectedItem(formula);
}
}