SMART datagrid v.1 > Classes > GridBase

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DataLudi.GridBase.onUndoStateChanged  event

当网格或连接在网格的DataSet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，将会触发这个事件。 

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