Handsontable 筛选事件
有时候我们需要知道在使用Handsontable时筛选掉了哪些数据，并对这些数据进行处理，可以使用afterFilter事件来进行相关操作。
Handsontable筛选掉的数据没有真的被删除，而是被隐藏了起来，我们需要知道这些被隐藏起来的行号，然后获得相关数据。
原始数据：
相关代码如下：
<!DOCTYPE html> <html> <head> <title>handsontable demo</title> <meta charset="utf-8"> <link rel="stylesheet" href="handsontable/htstyle.css"> <link rel="stylesheet" href="handsontable/htstyle-custom.css"> <script src="handsontable/jquery-1.12.1.js"></script> <script src="handsontable/handsontable.min.js"></script> </head> <body> <div id="example"></div> <script> var data = [ { riqi: '2017-01', address: '北京', goods: '冰箱', price: '3399', sales: 530, del: '' }, { riqi: '2017-01', address: '天津', goods: '空调', price: '4299', sales: 522, del: '' }, { riqi: '2017-01', address: '上海', goods: '洗衣机', price: '1299', sales: 544, del: '' }, { riqi: '2017-01', address: '广州', goods: '彩电', price: '4599', sales: 562, del: '' }, { riqi: '2017-01', address: '深圳', goods: '热水器', price: '1099', sales: 430, del: '' }, { riqi: '2017-02', address: '重庆', goods: '笔记本电脑', price: '4999', sales: 666, del: '' }, { riqi: '2017-02', address: '厦门', goods: '油烟机', price: '2899', sales: 438, del: '' }, { riqi: '2017-02', address: '青岛', goods: '饮水机', price: '899', sales: 620, del: '' }, { riqi: '2017-02', address: '大连', goods: '手机', price: '1999', sales: 500, del: '' } ]; function negativeValueRenderer(instance, td, row, col, prop, value, cellProperties) { Handsontable.renderers.TextRenderer.apply(this, arguments); if (prop == 'address') { td.style.color = '#32CD32'; } else if (prop == 'price') { //格式化价格数据 td.innerText = value != null ? numbro(value).format('0.00') : ""; } else if (prop == 'sales') { //右对齐 td.style.textAlign = 'right'; td.innerText = value != null ? numbro(value).format('0,0.00') : ""; } else if (prop == 'del') { //添加自定义的图片，并给图片的chick添加事件 var escaped = Handsontable.helper.stringify(value), imgdel; imgdel = document.createElement('IMG'); imgdel.src = "handsontable/remove.png"; imgdel.width = 20; imgdel.name = escaped; imgdel.style = 'cursor:pointer;';//鼠标移上去变手型 Handsontable.dom.addEvent(imgdel, 'click', function (event) { hot.alter("remove_row", row);//删除当前行 }); Handsontable.dom.empty(td); td.appendChild(imgdel); td.style.textAlign = 'center'; return td; } } Handsontable.renderers.registerRenderer('negativeValueRenderer', negativeValueRenderer); var hot = new Handsontable(document.getElementById('example'), { data: data, colHeaders: ['操作', '日期', '地点', '商品', '单价', '销量'], // 使用自定义列头 rowHeaders: true, colWidths: 150, // 设置所有列宽为150像素 filters: true, columnSorting: true, sortIndicator: true, autoColumnSize: true, manualColumnResize: true, undo: true, redo: true, wordWrap: true, copyable: true, mergeCells: false, manualRowResize: true, manualRowMove: true, manualColumnMove: false, renderAllRows: true, allowInsertRow: true, allowInsertColumn: false, fixedColumnsLeft: 1, columns: [{ data: 'del', type: 'text' }, { data: 'riqi', type: 'date', dateFormat: 'YYYY-MM-DD' }, { data: 'address', type: 'text' }, { data: 'goods', type: 'text' }, { data: 'price', type: 'numeric' }, { data: 'sales', type: 'numeric' }], contextMenu: ['row_above', 'row_below', '---------', 'remove_row', '---------', 'undo', 'redo', '---------', 'make_read_only', '---------', 'alignment'], dropdownMenu: ['filter_by_condition', 'filter_by_value', 'filter_action_bar'], cells: function (row, col, prop) { var cellProperties = {}; cellProperties.renderer = "negativeValueRenderer"; return cellProperties; }, }); //添加筛选成功后的触发事件 hot.addHook('afterFilter', function () { var plugin = hot.getPlugin('trimRows').trimmedRows;//获取被筛选掉的行号 if (plugin.length <= 0) { return; } console.log(plugin); var DataArray = new Array(); for (var i = 0; i < plugin.length; i++) { //通过行号获取数据 DataArray.push(hot.getSourceDataAtRow(plugin[i])); } console.log(DataArray); }); </script> </body> </html>
在操作中，我筛选掉了地点为北京的那一行，可以发现浏览器日志如下：
By QJL
