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扩展BootstrapTable的treegrid功能

扩展BootstrapTable的treegrid功能

阅读目录

  • 一、效果预览
  • 二、代码示例
  • 三、组件需要完善的地方
  • 四、总结

 

正文

前言:上篇  JS组件系列——自己动手封装bootstrap-treegrid组件 博主自己动手封装了下treegrid的功能,但毕竟那个组件只是一个单独针对树形表格做的,适用性还比较有限。关注博主的园友应该知道,博主的博客里面写了很多bootstrapTable的扩展,今天打算在直接在bootstrapTable的基础上扩展一个treegrid的功能,很多长期关注博主博客的园友一直在问我怎么在bootstrapTable里面直接使用treegrid的功能,所以今天还是带来点福利。有兴趣的可以捧个人场!

本文原创地址:http://www.cnblogs.com/landeanfen/p/6924895.html

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一、效果预览

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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 ? str : ‘‘;
    };

    var getFieldIndex = function (columns, field) {
        var index = -1;

        $.each(columns, function (i, column) {
            if (column.field === field) {
                index = i;
                return false;
            }
            return true;
        });
        return index;
    };

    var calculateObjectValue = http://www.mamicode.com/function (self, name, args, defaultValue) {"%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"‘, $.isArray(item) ? undefined : item._id),
                sprintf(‘ class="%s"‘, style.classes || ($.isArray(item) ? undefined : item._class)),
                sprintf(‘ data-index="%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:">‘,
                    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 = http://www.mamicode.com/getItemField(item, field),"%s"‘, csses.concat(that.header.styles[j]).join(‘; ‘));

                value = http://www.mamicode.com/calculateObjectValue(column,"%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 ? ‘checkbox‘ : type;
                    type = column.radio ? ‘radio‘ : type;

                    text = [that.options.cardView ?
                        ‘<div class="card-view">‘ : ‘<td class="bs-checkbox">‘,
                        ‘<input‘ +
                        sprintf(‘ data-index="%s"‘, i) +
                        sprintf(‘ name="%s"‘, that.options.selectItemName) +
                        sprintf(‘ type="%s"‘, type) +
                        sprintf(‘ value="http://www.mamicode.com/%s"‘, item[that.options.idField]) +
                        sprintf(‘ checked="%s"‘, value =http://www.mamicode.com/== true ||"%s"‘, !column.checkboxEnabled ||
                        (value && value.disabled) ? ‘disabled‘ : undefined) +
                        ‘ />‘,
                        that.header.formatters[j] && typeof value =http://www.mamicode.com/== ‘string‘ ? value : ‘‘,"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 ? that.options.expandIcon : that.options.collapseIcon);
                        //icon = sprintf(‘<span class="tree-icon %s" style="cursor: pointer; margin: 0px 5px;"></span>‘, child.length > 0 ? that.options.expandIcon : "");
                    }
                    text = that.options.cardView ? [‘<div class="card-view">‘,
                        that.options.showHeader ? sprintf(‘<span class="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 =http://www.mamicode.com/== ‘‘) {"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 = $td[0].cellIndex,
                field = that.header.fields[that.options.detailView && !that.options.cardView ? index - 1 : index],
                column = that.columns[getFieldIndex(that.columns, field)],
                value = http://www.mamicode.com/getItemField(item, field);"%s"]‘, that.options.selectItemName));
                if ($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) {
                $.each(that.data, function (index, item) {
                    if (item[that.options.treeId] == c[that.options.treeId]) {
                        item.hidden = icon.hasClass(that.options.expandIcon);
                        that.uncheck(index);
                        return;
                    }
                });
            });
            if (icon.hasClass(that.options.expandIcon)) {
                icon.removeClass(that.options.expandIcon).addClass(that.options.collapseIcon);
            } else {
                icon.removeClass(that.options.collapseIcon).addClass(that.options.expandIcon);
            }
            that.options.data = http://www.mamicode.com/that.data;"%s"]‘, this.options.selectItemName));
        this.$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 ? ‘check‘ : ‘uncheck‘, row, $this);
        });

        $.each(this.header.events, function (i, events) {
            if (!events) {
                return;
            }
            if (typeof events === ‘string‘) {
                events = calculateObjectValue(null, events);
            }

            var field = that.header.fields[i],
                fieldIndex = $.inArray(field, that.getVisibleFields());

            if (that.options.detailView && !that.options.cardView) {
                fieldIndex += 1;
            }

            for (var key in events) {
                that.$body.find(‘tr‘).each(function () {
                    var $tr = $(this),
                        $td = $tr.find(that.options.cardView ? ‘.card-view‘ : ‘td‘).eq(fieldIndex),
                        index = key.indexOf(‘ ‘),
                        name = key.substring(0, index),
                        el = key.substring(index + 1),
                        func = events[key];

                    $td.find(el).off(name).on(name, function (e) {
                        var index = $tr.data(‘index‘),
                            row = that.data[index],
                            value = http://www.mamicode.com/row[field];"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",…}]
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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。

有兴趣的园友可以自己试试。

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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。如果你觉得本文能够帮助你,可以右边随意 打赏 博主,打赏后可以获得博主永久免费的技术支持。

本文原创出处:http://www.cnblogs.com/landeanfen/

扩展BootstrapTable的treegrid功能