jQWidgets jqxDataTable addFilter() 方法

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。 jqxDataTable 用于读取和显示 HTML 表中的数据。这也用于显示来自各种数据源（如 XML、JSON、Array、CSV 或 TSV）的数据。

addFilter()方法用于将新过滤器添加到现有数据表中。

句法：

$("#dataTable").jqxDataTable('addFilter', dataField, filtergroup);

参数：此函数接受两个参数，如下所示：

• dataField：这是要应用过滤器的指定列。该参数为字符串类型。
• filerGroup：这是创建的过滤器组 目的。

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 addFilter()方法。在此示例中，数据表内容正在根据公司名称“GeeksforGeeks”进行过滤。

HTML

   
      
      
      
      
      
      
      
      
      
      
         $(document).ready(function () {
             var data = new Array();
             var Employee_Name = [
                 "Ravi", "Sumit",
                 "Amit", "Aakash"];
             var Company = [
                 "GeeksforGeeks",
                 "Amazon", "Google",
                 "GeeksforGeeks"];
             var Designation = [
                 "Content Writer",
                 "Software Engineer",
                 "Data Scientist", "HR"];
           
             for (var i = 0; i < 4; i++) {
                 var row = {};
                 row["Employee_Name"] = Employee_Name[i];
                 row["Company"] = Company[i];
                 row["Designation"] = Designation[i]
                 data[i] = row;
             }
           
             var source = {
                 localData: data,
                 dataType: "array",
                 dataFields: [{
                     name: 'Employee_Name',
                     type: 'string'
                 }, {
                     name: 'Company',
                     type: 'string'
                 }, {
                     name: 'Designation',
                     type: 'string'
                 }]
             };
           
             var dataAdapter =
                 new $.jqx.dataAdapter(source);
             $("#table").jqxDataTable({
                 width: 550,
                 theme: 'energyblue',
                 pageable: true,
                 editable: true,
                 source: dataAdapter,
                 columns: [{
                     text: 'Employee_Name',
                     dataField: 'Employee_Name',
                     width: 200
                 }, {
                     text: 'Company',
                     dataField: 'Company',
                     width: 160
                 }, {
                     text: 'Designation',
                     dataField: 'Designation',
                     width: 190
                 }]
             });
             $("#jqxbutton").jqxButton({
                 theme: 'energyblue',
                 width: 200,
                 height: 30
             });
             $('#jqxbutton').click(function () {
                 var filtertype = 'stringfilter';
                 var filtergroup = new $.jqx.filter();
                 var filter_or_operator = 1;
                 var filtervalue = "GeeksforGeeks";
                 var filtercondition = 'equal';
                 var filter = filtergroup.createfilter(
                     filtertype, filtervalue, filtercondition);
                 filtergroup.addfilter(filter_or_operator, filter);
                 $("#table").jqxDataTable(
                     'addFilter', 'Company', filtergroup
                 );
                 $("#table").jqxDataTable('applyFilters');
             });
         });
      
   
   
      
          GeeksforGeeks 
          jQWidgets jqxDataTable addFilter() Method 
         
         
      
   

输出：

参考： https://www.jqwidgets.com/jquery-widgets-documentation/documentation/jqxdatatable/jquery-datatable-api.htm