beforeCellStateChange

<pre><code>说明：单元格状态改变前事件 例：示例中data格式为{ rowIndex: ‘行号’, cellName: ‘列名’, propertyName: ‘状态名’, value: ‘新值’, oldValue: ‘旧值’ } viewmodel.get(propertyName).on(' beforeCellStateChange', function (data) { return true; }); 返回true则允许状态改变，返回false终止改变</code></pre>