SMART datagrid v.1 > Classes > DataSet

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DataLudi.DataSet.onCommandStackChanged  event

当数据组的撤销栈发生变更时，也就是说，当添加新的变更调用或运行undo、redo时，就会触发这个事件。 

function onCommandStackChanged (ds: DataSet, canUndo: Boolean, canRedo: Boolean);
Returns
Void
Parameters
ds - DataSet.
canUndo - Boolean.
canRedo - Boolean.
Code -1
    ds.onUndoStateChanged = function (grid, canUndo, canRedo) {
        document.getElementById('btnUndo').disabled = !canUndo;
        document.getElementById('btnRedo').disabled = !canRedo;
    };
See Also
撤销概述
undo
redo
GridBase.UndoStackChanged
Examples
撤销和重做