jQWidgets jqxTreeGrid getCheckedRows()用法及代码示例

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、优化、独立于平台且得到广泛支持的框架。 jqxTreeGrid 用于表示 tree-like 结构中的数据。该小部件对于显示多列分层数据、数据分页、排序和过滤、数据编辑、列大小调整、固定列、条件格式、聚合和行选择非常有用。这些小部件还可以读取和显示来自任何类型数据源(例如 XML、JSON、Array、CSV 或 TSV)的数据。

getCheckedRows() 方法用于返回指定 jqxTreeGrid 的所有已检查行的平面数组。

有一些保留的行成员：

checked:这是布尔值。这里，返回该行的检查状态。
expanded:这是布尔值。此处，返回行的展开状态。
icon: 这是字符串值。此处，返回该行的图标 URL。
leaf: 这是布尔值。这里，返回层次结构中行的叶子的存在性。
level:这是整数值。此处，返回行的层次结构级别。
parent: 这就是对象。对于根行，它返回 null，否则返回父行的对象。
records:这是一个数组。这里，返回行的sub-rows集合。
selected:这是布尔值。此处，返回该行的选定状态。
uid:这可以是数字或字符串值。此处，返回该行的唯一 ID 或键。

用法:

$('Selector').jqxTreeGrid('getCheckedRows');

Parameters: 该方法不接受任何参数。

返回值：此方法返回所有已检查行的平面数组

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

<link rel=”stylesheet” href=”jqwidgets/styles/jqx.base.css” type=”text/css” />
<script type=”text/javascript” src=”scripts/jquery.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxcore.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxdata.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxbuttons.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxscrollbar.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxlistbox.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxdropdownlist.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxdatatable.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxtreegrid.js”></script>

例子：下面的例子说明了jQWidgets jqxTreeGridgetCheckedRows()方法。在下面的示例中，返回检查的第一行和第三行。

HTML


<!DOCTYPE html> 
<html lang="en"> 
  <head> 
    <link rel="stylesheet"
          href="jqwidgets/styles/jqx.base.css"
          type="text/css" /> 
    <script type="text/javascript" 
            src="scripts/jquery.js"> 
    </script> 
    <script type="text/javascript" 
            src="jqwidgets/jqxcore.js"> 
    </script> 
    <script type="text/javascript" 
            src="jqwidgets/jqxdata.js"> 
    </script> 
    <script type="text/javascript" 
            src="jqwidgets/jqxbuttons.js"> 
    </script> 
    <script type="text/javascript" 
            src="jqwidgets/jqxscrollbar.js"> 
    </script> 
    <script type="text/javascript" 
            src="jqwidgets/jqxlistbox.js"> 
    </script> 
    <script type="text/javascript" 
            src="jqwidgets/jqxdropdownlist.js"> 
    </script> 
    <script type="text/javascript" 
            src="jqwidgets/jqxdatatable.js"> 
    </script> 
    <script type="text/javascript" 
            src="jqwidgets/jqxtreegrid.js"> 
    </script> 
  </head> 
  
  <body> 
    <center> 
      <h1 style="color: green">GeeksforGeeks</h1> 
      <h3>jQWidgets jqxTreeGrid getCheckedRows() Method</h3> 
      <div id="jqxTreeGrid" style="margin: 25px"></div> 
      <input
        type="button"
        style="margin: 20px"
        id="button_for_getCheckedRows"
        value="Get the checked rows" /> 
      <div id="log"></div> 
        
      <script type="text/javascript"> 
        $(document).ready(function () { 
          var A = [ 
            { 
              ID: 1, 
              Employee_Name: "Amit", 
              Company: "GeeksforGeeks", 
              Designation: "Content Writer", 
              expanded: true, 
              A1: [ 
                { 
                  ID: 2, 
                  Employee_Name: "Sumit", 
                  Company: "Amazon", 
                  Designation: "Software Engineer", 
                }, 
                { 
                  ID: 3, 
                  Employee_Name: "Vivek", 
                  Company: "Apple", 
                  Designation: "Product Manager", 
                  expanded: true, 
                  A1: [ 
                    { 
                      ID: 4, 
                      Employee_Name: "Soni", 
                      Company: "Flipkart", 
                      Designation: "HR", 
                    }, 
                  ], 
                }, 
              ], 
            }, 
          ]; 
  
          var Data_Source = { 
            dataFields: [ 
              { 
                name: "ID", 
              }, 
              { 
                name: "Employee_Name", 
              }, 
              { 
                name: "Company", 
              }, 
              { 
                name: "Designation", 
              }, 
              { 
                name: "A1", 
                type: "array", 
              }, 
              { 
                name: "expanded", 
              }, 
            ], 
            hierarchy: { 
              root: "A1", 
            }, 
            id: "ID", 
            localData: A, 
          }; 
  
          var Data = new $.jqx.dataAdapter(Data_Source); 
  
          $("#jqxTreeGrid").jqxTreeGrid({ 
            source: Data, 
            editable: true, 
            checkboxes: true, 
            ready: function () { 
              $("#jqxTreeGrid").jqxTreeGrid("expandRow", "1"); 
              $("#jqxTreeGrid").jqxTreeGrid("expandRow", "3"); 
            }, 
            columns: [ 
              { 
                text: "Employee_Name", 
                align: "center", 
                dataField: "Employee_Name", 
                width: 140, 
              }, 
              { 
                text: "Company", 
                align: "center", 
                dataField: "Company", 
                width: 150, 
              }, 
              { 
                text: "Designation", 
                align: "center", 
                dataField: "Designation", 
                width: 150, 
              }, 
            ], 
          }); 
          $("#button_for_getCheckedRows").jqxButton({ 
            width: 300, 
            height: 35, 
          }); 
          $("#jqxTreeGrid").jqxTreeGrid("checkRow", 1); 
          $("#jqxTreeGrid").jqxTreeGrid("checkRow", 3); 
          $("#button_for_getCheckedRows").click(function () { 
            var checked_Rows = $("#jqxTreeGrid") 
              .jqxTreeGrid("getCheckedRows"); 
            var checked_Rows_Data = ""; 
            var a = 0; 
            while (a < checked_Rows.length) { 
              checked_Rows_Data += 
                checked_Rows[a].Employee_Name + 
                " " + 
                checked_Rows[a].Company + 
                " " + 
                checked_Rows[a].Designation + 
                " & "; 
              a++; 
            } 
  
            $("#log").html(JSON.stringify(checked_Rows_Data)); 
          }); 
        }); 
      </script> 
    </center> 
  </body> 
</html>

输出：

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

相关用法

注：本文由纯净天空筛选整理自Kanchan_Ray大神的英文原创作品 jQWidgets jqxTreeGrid getCheckedRows() Method。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。