How to use jQuery Tree Multiselect correctly

This article mainly introduces the use of jQuery Tree Multiselect in detail. This plug-in allows users to present list check box selections in the form of a tree. It is mostly used in permission management to assign different permissions. It has certain Reference value, interested friends can refer to it, I hope it can help everyone.

How to use the tree permission management plug-in jQuery Tree Multiselect, the specific content is as follows

1. Get to know jQuery Tree Multiselect

This plug-in allows users to Present list check box selections in a tree format. It is mostly used in permission management to allocate different permissions.

2. Running environment

2.1. It is necessary to introduce jquery.v1.8+ version and jquery ui.js 2.2. It can only be run in versions above IE8

3. Rendering display:

When assigning permissions to roles, there are two buttons in the operation bar: Modify And authorization

Click the authorization button, the effect is as shown below:

Intuitive menu presentation:

With option logo on the right:

4. Usage method and parameter description

4.1. Initialization method: $("select ").treeMultiselect();4.2. Use the selected attribute name:

##selected:When adding the selected attribute to option, that is, Homepage, change the check box to the selected state by default;
data-section:That is, when adding the data-section attribute to the option, the parent-child hierarchical relationship is displayed ：

&#39;<option value="monitor_index" data-section="旅游管理" data-description="首页描述" selected>首页</option>&#39; +
&#39;<option value="manage_logs" data-section="旅游管理" data-description="用户日志描述" selected>用户信息</option>&#39; +
&#39;<option value="interface_logs" data-section="旅游管理" data-description="接口调用日志描述" selected>酒店信息</option>&#39; +
&#39;<option value="abnormal_logs" data-section="旅游管理">出行信息</option>&#39; +
&#39;<option value="empty_logs" data-section="旅游管理">景点信息</option>&#39;

data-description:That is, when adding the data-description attribute to the option, there will be an icon in the form of a question mark behind the check box. Put the mouse on it to display the description information. As shown in the figure:

data-index:That is, when adding the data-index attribute to option, it is mainly used to display the order of option options, which is the most intuitive The performance of can be observed in the p area on the right.

By setting "Home Page": data-index = 3, "User Information": data-index = 2, "Hotel Information": data-index = 1, the sorting on the right is as shown in the figure:

At the same time Will make the option selected.

In addition, by setting data-section="Interface Test/Interface Application/Interface Filtering", you can set up multi-level display effects, as shown in the figure:

4.3. Detailed explanation of parameters

params is an object. You can add different parameters to treeMultiselect(params) to achieve different effects:

Usage methods are as follows ：$("#authorifyselect").treeMultiselect({ searchable: true, startCollapsed: false });
The parameters:
searchable, collapsible, hideSidePanel, onChange, startCollapsed are more commonly used and important, other parameters Users can add according to their own needs.

allowBatchSelection: Used to show and hide the parent menu check box. When the default is true, a check box appears in front of the parent menu, and a detailed selection list appears on the right; as shown in the figure:

When set to false, there is no check box in front of the parent menu. , as shown in the figure:

collapsible: is used to set the expansion and contraction of the parent menu.

When the default is true, a small horizontal line will appear in front of the parent menu, which can be retracted; as shown in the figure:

When set to false, there will be no horizontal line in front of the parent menu. Small horizontal lines, that is, cannot be retracted; as shown in the figure:

enableSelectAll, supports the selection of any option; the default is false; is set to When true, the "Select All" and "Unselect All" options appear, which can realize the functions of selecting all and unselecting all, as shown in the figure:

selectAllText，当enableSelectAll可用时，可选中所有；
unselectAllText，当enableSelectAll可用时，可不选中所有；
freeze，默认为false，表示对选项禁用选择；设置为true时，效果如图：

hideSidePanel：用户隐藏右边的选项面板；默认为false,表示不隐藏；设置为true时，即隐藏；
onChange：默认为null，表示选择选项时触发的回调函数；默认包含四个参数（text:属性文本，value:值，initialIndex,section）

$("#authorifyselect").treeMultiselect({ onChange: function(text, value, initialIndex, section) {
 console.log(text);
 console.log(value);
 console.log(initialIndex);
 console.log(section);
} });

当我点击某个选项时，输出结果如图：

即text会输出所有选中的复选框的信息；value会输出你当时点击的那个复选框的信息；这里initialIndex和section的值为空。
onlyBatchSelection：只进行部分检查，只能设置为false.
sortable:默认为false,设置为true时，选择的选项可以通过拖动排序(需要jQuery UI);
searchable,默认为false,设置为true时，菜单顶部会出现搜索框，用于快捷搜索菜单。效果如图：

searchParams: ['value', 'text', 'description', 'section']，用于设置搜索设置项。
sectionDelimiter：意思是data-section="value1/value2/value3",可以通过“/”来分隔值，实现多层列表效果。
showSectionOnSelected：默认为true，当选中选项时，显示section name;
startCollapsed:默认为false，设置为true时，菜单默认进来显示为折叠效果，如图：

总结：当你在开发用户权限管理的后台系统时，你不妨选择这个插件用于权限的分配。小巧且简单。

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