Using Undo and Redo

You can use Ctrl + Z to undo an action in the widget. You can then use Ctrl + Y to redo the action you canceled.

You can undo the following types of actions:

The following actions do not respond to Ctrl + Z:

You can prevent or allow the undo action in code with the allowUndo method.

This example sets the allowUndo method and specifies an action.

JavaScript	Copy Code
spread.allowUndo(true); var group = new GcSpread.Sheets.UndoRedo.GroupExtent(3,5); var action = new GcSpread.Sheets.UndoRedo.RowGroupUndoAction(activeSheet,group); spread.doCommand(action); activeSheet.isPaintSuspended(false); activeSheet.repaint();

The following code can be used to undo or redo an action.

JavaScript	Copy Code
var sheet = spread.getActiveSheet(); $("#testUndo").click(function () { GcSpread.Sheets.SpreadActions.undo.apply(sheet); }); $("#testRedo").click(function () { GcSpread.Sheets.SpreadActions.redo.apply(sheet); });