上篇给大家介绍了JS 组件系列之 bootstrap treegrid 组件封装过程,下面重点给大家介绍JS 组件系列之BootstrapTable的treegrid功能,需要的的朋友一起学习吧!
一、效果预览
全部折叠
展开一级
全部展开
二、代码示例
怎么样?效果还行吧。给出js的源码供大家参考。
(function ($) { 'use strict'; var sprintf = function (str) { var args = arguments, flag = true, i = 1; str = str.replace(/%s/g, function () { var arg = args[i++]; if (typeof arg === 'undefined') { flag = false; return ''; } return arg; }); return flag "%s"', key, escapeHTML(attributes[key]))); } } if (item._data && !$.isEmptyObject(item._data)) { $.each(item._data, function (k, v) { if (k === 'index') { return; } data_ += sprintf(' data-%s="%s"', k, v); }); } html.push('<tr', sprintf(' %s', htmlAttributes.join(' ')), sprintf(' id="%s"', $.isArray(item) "%s"', style.classes || ($.isArray(item) "%s"', i), sprintf(' data-uniqueid="%s"', item[this.options.uniqueId]), sprintf('%s', data_), '>' ); if (this.options.cardView) { html.push(sprintf('<td colspan="%s">', this.header.fields.length)); } if (!this.options.cardView && this.options.detailView) { html.push('<td>', '<a class="detail-icon" href="javascript:" rel="external nofollow" >', sprintf('<i class="%s %s"></i>', this.options.iconsPrefix, this.options.icons.detailOpen), '</a>', '</td>'); } $.each(this.header.fields, function (j, field) { var text = '', value = getItemField(item, field), type = '', cellStyle = {}, id_ = '', class_ = that.header.classes[j], data_ = '', rowspan_ = '', title_ = '', column = that.columns[getFieldIndex(that.columns, field)]; if (!column.visible) { return; } style = sprintf('style="%s"', csses.concat(that.header.styles[j]).join('; ')); value = calculateObjectValue(column, that.header.formatters[j], [value, item, i], value); if (item['_' + field + '_id']) { id_ = sprintf(' id="%s"', item['_' + field + '_id']); } if (item['_' + field + '_class']) { class_ = sprintf(' class="%s"', item['_' + field + '_class']); } if (item['_' + field + '_rowspan']) { rowspan_ = sprintf(' rowspan="%s"', item['_' + field + '_rowspan']); } if (item['_' + field + '_title']) { title_ = sprintf(' title="%s"', item['_' + field + '_title']); } cellStyle = calculateObjectValue(that.header, that.header.cellStyles[j], [value, item, i], cellStyle); if (cellStyle.classes) { class_ = sprintf(' class="%s"', cellStyle.classes); } if (cellStyle.css) { var csses_ = []; for (var key in cellStyle.css) { csses_.push(key + ': ' + cellStyle.css[key]); } style = sprintf('style="%s"', csses_.concat(that.header.styles[j]).join('; ')); } if (item['_' + field + '_data'] && !$.isEmptyObject(item['_' + field + '_data'])) { $.each(item['_' + field + '_data'], function (k, v) { if (k === 'index') { return; } data_ += sprintf(' data-%s="%s"', k, v); }); } if (column.checkbox || column.radio) { type = column.checkbox "card-view">' : '<td class="bs-checkbox">', '<input' + sprintf(' data-index="%s"', i) + sprintf(' name="%s"', that.options.selectItemName) + sprintf(' type="%s"', type) + sprintf(' value="%s"', item[that.options.idField]) + sprintf(' checked="%s"', value === true || (value && value.checked) "%s"', !column.checkboxEnabled || (value && value.disabled) "margin-left: %spx;"></span>', (item.Level - that.options.treeRootLevel) * 15); var child = $.grep(data, function (d, i) { return d.ParentId == item[that.options.treeId] && !d.hidden; }); icon = sprintf('<span class="tree-icon %s" style="cursor: pointer; margin: 0px 5px;"></span>', child.length > 0 "tree-icon %s" style="cursor: pointer; margin: 0px 5px;"></span>', child.length > 0 ""); } text = that.options.cardView "card-view">', that.options.showHeader "title" %s>%s</span>', style, getPropertyFromOther(that.columns, 'field', 'title', field)) : '', sprintf('<span class="value">%s</span>', value), '</div>' ].join('') : [sprintf('<td%s %s %s %s %s %s>', id_, class_, style, data_, rowspan_, title_), indent, icon, value, '</td>' ].join(''); if (that.options.cardView && that.options.smartDisplay && value === '') { text = ''; } } html.push(text); }); if (this.options.cardView) { html.push('</td>'); } html.push('</tr>'); } if (!html.length) { html.push('<tr class="no-records-found">', sprintf('<td colspan="%s">%s</td>', this.$header.find('th').length, this.options.formatNoMatches()), '</tr>'); } this.$body.html(html.join('')); if (!fixedScroll) { this.scrollTo(0); } this.$body.find('> tr[data-index] > td').off('click dblclick').on('click dblclick', function (e) { var $td = $(this), $tr = $td.parent(), item = that.data[$tr.data('index')], index = $td[0].cellIndex, field = that.header.fields[that.options.detailView && !that.options.cardView "%s"]', that.options.selectItemName)); if ($selectItem.length) { $selectItem[0].click(); } } }); this.$body.find('> tr[data-index] > td > .detail-icon').off('click').on('click', function () { debugger; var $this = $(this), $tr = $this.parent().parent(), index = $tr.data('index'), row = data[index]; if ($tr.next().is('tr.detail-view')) { $this.find('i').attr('class', sprintf('%s %s', that.options.iconsPrefix, that.options.icons.detailOpen)); $tr.next().remove(); that.trigger('collapse-row', index, row); } else { $this.find('i').attr('class', sprintf('%s %s', that.options.iconsPrefix, that.options.icons.detailClose)); $tr.after(sprintf('<tr class="detail-view"><td colspan="%s">%s</td></tr>', $tr.find('td').length, calculateObjectValue(that.options, that.options.detailFormatter, [index, row], ''))); that.trigger('expand-row', index, row, $tr.next().find('td')); } that.resetView(); }); this.$body.find('> tr[data-index] > td > .tree-icon').off('click').on('click', function (e) { debugger; e.stopPropagation(); var $this = $(this), $tr = $this.parent().parent(), index = $tr.data('index'), row = data[index]; var icon = $(this); var child = getChild(data[index], data, that.options.treeId); $.each(child, function (i, c) { $.each(that.data, function (index, item) { if (item[that.options.treeId] == c[that.options.treeId]) { item.hidden = icon.hasClass(that.options.expandIcon); that.uncheck(index); return; } }); }); if (icon.hasClass(that.options.expandIcon)) { icon.removeClass(that.options.expandIcon).addClass(that.options.collapseIcon); } else { icon.removeClass(that.options.collapseIcon).addClass(that.options.expandIcon); } that.options.data = that.data; that.initBody(true); }); this.$selectItem = this.$body.find(sprintf('[name="%s"]', this.options.selectItemName)); this.$selectItem.off('click').on('click', function (event) { event.stopImmediatePropagation(); var $this = $(this), checked = $this.prop('checked'), row = that.data[$this.data('index')]; if (that.options.maintainSelected && $(this).is(':radio')) { $.each(that.options.data, function (i, row) { row[that.header.stateField] = false; }); } row[that.header.stateField] = checked; if (that.options.singleSelect) { that.$selectItem.not(this).each(function () { that.data[$(this).data('index')][that.header.stateField] = false; }); that.$selectItem.filter(':checked').not(this).prop('checked', false); } that.updateSelected(); that.trigger(checked "id",//treeView视图字段 treeId: "id", treeRootLevel: 0,//根节点序号 treeCollapseAll: false,//是否全部展开 collapseIcon: "glyphicon glyphicon-chevron-right",//折叠样式 expandIcon: "glyphicon glyphicon-chevron-down"//展开样式 }); })(jQuery);
组件的使用如下:
1、首先引用这个js文件。
2、然后初始化组件
$('#tb').bootstrapTable({ url: ActionUrl + 'GetMenuList', toolbar: '#toolbar', sidePagination: 'client', pagination: false, treeView: true, treeId: "Id", treeField: "Name", treeRootLevel: 1, clickToSelect: true,//collapseIcon: "glyphicon glyphicon-triangle-right",//折叠样式 //expandIcon: "glyphicon glyphicon-triangle-bottom"//展开样式 });
treeView:true表示启用树表格模式;
treeId:'Id'表示每一行tree的id;
treeField:'Name'表示要对那一列进行展开;
treeRootLevel:1表示树根的级别。
还有一个地方需要注意,要建立记录之间的父子级关系,必然后有一个ParentId的概念,所以在从后端返回的结果集里面,每条记录势必有一个ParentId的属性,如果是根节点,ParentId为null。比如我们后台得到的结果集的json格式如下:
[{Id: 1, Name: "系统设置", Url: null, ParentId: null, Level: 1, CreateTime: null, Status: 1, SortOrder: 1,…}, {Id: 2, Name: "菜单管理", Url: "/Systems/Menu/Index", ParentId: 1, Level: 2, CreateTime: null, Status: 1,…}, {Id: 3, Name: "订单管理", Url: null, ParentId: null, Level: 1, CreateTime: "2017-05-31 17:05:27",…}, {Id: 4, Name: "基础数据", Url: null, ParentId: null, Level: 1, CreateTime: "2017-05-31 17:05:55",…}, {Id: 5, Name: "新增订单", Url: "/order/add", ParentId: 3, Level: 2, CreateTime: "2017-05-31 17:07:03",…}]
三、组件需要完善的地方
上述封装给大家提供一个扩展bootstrapTable组件treeview功能,还有很多地方需要完善,比如:
1、我们的叶子节点前面的图标可以去掉;
2、增加展开所有、折叠所有的功能;
3、Level字段可以去掉,通过ParentId为null来确定根节点。
有兴趣的小伙伴可以自己试试。
四、总结
至此本文就结束了,这篇针对上篇做了一个补充,使得我们可以根据项目的需求自己选择用哪种方式,如果我们项目使用的是bootstrapTable作为数据展示的组件,可以考虑上述扩展;如果没有使用bootstrapTable,可以试试上篇的组件。
P70系列延期,华为新旗舰将在下月发布
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