SMART datagrid v.1 > Classes > DataSet

DataLudi.DataSet.canUndo  method

When undoable is true, if the changed history which can restore by calling methods of data set exists, it will return true. 

You can check whether Redoing is possible by canRedo method. 

Returns

Boolean

Note

• In grid application, it manages Undo stack of data set through the property or methods of Grid connected to this data set rather than data set. You can also call GridBase.canUndo rather than this function to check whether Undoing of data set is possible.

    $('#undo').click(function () {
        if (dataset.canUndo()) {
            dataset.undo();
        }
    }

See Also

Undoing Overview

undoable

canRedo

undo

redo

clearUndo

onUndoStateChanged

canUndo

canRedo

Examples

Undo & Redo