Hi Yuichiro ,

The problem is a missing new word to assign an instance of GridEditAction.

You can redefine the setCellValue function on your side in the meanwhile, before it get fixed, by including this script in the JavaScript of your WebBlock/Screen:

GridOS.ExternalAPI.setCellValue = function(row, col, value, gridId) {
var gObj = GridOS.ComponentUtils.getGridObjectById(gridId);

var _flexGrid = gObj.grid;
var _panel = _flexGrid;
var _dataItem = _flexGrid.rows[row].dataItem;

var _binding;
var _col;
if (typeof(col) === 'number') {
_binding = _flexGrid.columns[col].binding;
_col = col;
}
else {
_binding = col;
_col = _flexGrid.columns.getColumn(_binding).index;
}

var _cellEvent = {
panel: _panel,
row: row,
col: _col,
os_dataItem: _dataItem,
os_binding: _binding
};
var undoStackActive = gObj.outsystemsOptions.undoStackActive;
if (undoStackActive) {
if (gObj.undoStack._openAction !== undefined) { // Check if is old undoStack
gObj.undoStack._openAction(new GridEditAction(_flexGrid, _cellEvent)); // From UndoStack: add to the stack the current state, before changing the value
}
else { // If is the new undoStack
gObj.undoStack._pendingAction = new GridEditAction(_flexGrid, _cellEvent); // From UndoStack: add to the stack the current state, before changing the value
}
}
// Before set the value of the cell get the current value, the old value
GridOS.EditEngine.onBeforeEditing(gObj.gridId, _flexGrid, _cellEvent);

// Set value of the cell
_flexGrid.cells.setCellData(row, _col, value);

// Mark as dirty if the new value set is different than the old
GridOS.EditEngine.setDirtyCell(gObj.gridId, _flexGrid, _cellEvent);
// Validate the cell
GridOS.EditEngine.validateErrors(_flexGrid, _cellEvent, gObj);

if (undoStackActive) {
if (gObj.undoStack._openAction !== undefined) { // Check if is old undoStack
gObj.undoStack._closePendingAction(); // From UndoStack: add to the stack the state after changing the value
}
else { // If is the new undoStack
if (gObj.undoStack._pendingAction instanceof GridEditAction) {
gObj.undoStack.pushPendingAction();
} // From UndoStack: add to the stack the state after changing the value
}
}
};