jQWidgets jqxGrid groupexpand 事件

jQWidgets是一个 JavaScript 框架，用于为 PC 和移动设备制作基于 Web 的应用程序。它是一个非常强大、经过优化、独立于平台且得到广泛支持的框架。 jqxGrid用于说明以表格形式显示数据的 jQuery 小部件。此外，它完全支持连接数据，以及分页、分组、排序、过滤和编辑。

每当展开一组显示的 jqxGrid 时，就会激活groupexpand 事件。

句法：

$("Selector").on("groupexpand", function (event) {

     // Arguments of the event
     var args = event.args;
     
     // Name of the expanded group
     var group = args.group;
   
     // Level of the expanded group
     var level = args.level;
   
     // Sub groups
     var subGroups = args.subgroups;
   
     // Sub rows
     var subRows = args.subrows;
});

链接文件：从给定链接下载 jQWidgets。在 HTML 文件中，找到下载文件夹中的脚本文件。

示例：下面的示例说明了 jQWidgets 中的 jqxGrid groupexpand事件。

HTML

  

    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    

  

    
        
            GeeksforGeeks
        
        jQWidgets jqxGrid groupexpand Event
        
        
        
             
        
    
  
    
        $(document).ready(function () {
            var d = new Array();
            var subjectNames =
                ["C++", "Scala", "Java", "C", "R", "JavaScript"];
  
            var pageNumber =
                ["7", "8", "12", "11", "10", "19"];
  
            for (var j = 0; j < 50; j++) {
                var r = {};
                r["subjectnames"] =
                    subjectNames[Math.floor(
                        Math.random() * subjectNames.length)
                    ];
  
                r["pagenumber"] =
                    pageNumber[Math.floor(
                        Math.random() * pageNumber.length)
                    ];
                d[j] = r;
  
            }
            var src = {
                localdata: d,
                datatype: "array",
            };
            var data_Adapter = new $.jqx.dataAdapter(src);
            $("#jqxg").jqxGrid({
                source: data_Adapter,
                groupable: true,
                groups: ['subjectnames'],
                theme: 'energyblue',
                height: "260px",
                width: "260px",
                columns: [
                    {
                        text: "Subject Name",
                        datafield: "subjectnames",
                        width: "120px",
                    },
                    {
                        text: "Page No.",
                        datafield: "pagenumber",
                        width: "120px",
                    },
                ],
            });
  
            $("#jqxg").on("groupexpand", function (event) {
                $('#log').html("Group name: " + event.args.group);
            });
        });
    

  

输出：

参考： https://www.jqwidgets.com/jquery-widgets-documentation/documentation/jqxgrid/jquery-grid-api.htm?search=