jQWidgets jqxTreeGrid getColumnProperty()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。

getColumnProperty()方法用于获取指定jqxTreeGrid的某一列的属性值。

用法:

$("#treeGrid").jqxTreeGrid('getColumnProperty', dataField, propertyName);

Parameters: 此方法接受两个参数，如下所示：

dataField:这是将返回其属性值的指定数据字段或列。
propertyName:这是指定的属性名称，将根据该名称返回指定列的属性值。

返回值：该方法返回属性值。

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 jqxTreeGridgetColumnProperty()方法。在以下示例中，返回 “Company” 列的属性名称 ‘align’ 的属性值。

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 getColumnProperty() Method 
        </h3> 
        <div id="jqxTreeGrid" style="margin: 25px;"> 
        </div> 
        <input type="button" style="margin: 20px;" 
               id="button_for_getColumnProperty"
               value="Get the align property value 
                         for the second column"/> 
        <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, 
                    sortable: true, 
                    ready: function () { 
                        $("#jqxTreeGrid").jqxTreeGrid( 
                            'expandRow', '1'); 
                    }, 
                    ready: function () { 
                        $("#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_getColumnProperty").jqxButton({ 
                    width: 350, 
                    height: 35 
                }); 
                $('#button_for_getColumnProperty').click( 
                    function () { 
                        var property = $("#jqxTreeGrid"). 
                        jqxTreeGrid( 
                            'getColumnProperty', 'Company', 
                            'align'); 
                        $("#log").html(JSON.stringify( 
                            property)) 
                    }); 
            }); 
        </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 getColumnProperty() 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。