當前位置: 首頁>>代碼示例 >>用法及示例精選 >>正文

jQWidgets jqxTreeGrid applyFilters()用法及代碼示例


jQWidgets 是一個 JavaScript 框架，用於為 PC 和移動設備製作基於 Web 的應用程序。它是一個非常強大、優化、獨立於平台且得到廣泛支持的框架。 jqxTreeGrid 用於表示 tree-like 結構中的數據。該小部件對於顯示多列分層數據、數據分頁、排序和過濾、數據編輯、列大小調整、固定列、條件格式、聚合和行選擇非常有用。這些小部件還可以讀取和顯示來自任何類型數據源(例如 XML、JSON、Array、CSV 或 TSV)的數據。

applyFilters()方法用於將添加或刪除的過濾器應用到指定的jqxTreeGrid。

用法:

$("Selector").jqxTreeGrid('applyFilters');

參數：該方法不接受任何參數。

返回值：該方法不返回任何值。

鏈接文件：下載jQWidgets從給定的鏈接。在 HTML 文件中，找到下載文件夾中的腳本文件。

<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：下麵的例子說明了jQWidgets jqxTreeGridapplyFilters()方法。在下麵的示例中，已應用為“公司”列中的 ‘geeksforgeeks’ 添加的過濾器。

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 applyFilters() Method 
        </h3> 
        <div id="jqxTreeGrid" style="margin: 25px;"> 
        </div> 
        <input type="button" style="margin: 20px;" 
               id="button_for_applyFilters" 
               value="Apply the filter" /> 
        <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, 
                    filterable: 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_applyFilters").jqxButton({ 
                    width: 300, 
                    height: 35 
                }); 
                $('#button_for_applyFilters').click( 
                    function () { 
                        var Type = 'stringfilter'; 
                        var Group = new $.jqx.filter(); 
                        var Operator = 1; 
                        var Value = "GeeksforGeeks"; 
                        var Condition = 'equal'; 
                        var filter = Group.createfilter( 
                          Type, Value, Condition); 
                        Group.addfilter(Operator, filter); 
                        $("#jqxTreeGrid").jqxTreeGrid( 
                          'addFilter', 'Company', Group); 
                        $("#jqxTreeGrid").jqxTreeGrid( 
                          'applyFilters'); 
                    }); 
            }); 
        </script> 
    </center> 
</body> 
  
</html>

輸出：

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



相關用法


注：本文由純淨天空篩選整理自Kanchan_Ray大神的英文原創作品 jQWidgets jqxTreeGrid applyFilters() Method。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。