jQWidgets jqxGrid clearfilters()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。这江青网格用于说明以表格形式显示数据的 jQuery 小部件。此外，它还全面支持数据连接、分页、分组、排序、过滤和编辑。

clearfilters()方法用于清除显示的jqxGrid中指定的过滤器。此外，它还有一个布尔类型的可选参数。其中，如果此参数的值为 true 或在没有任何参数的情况下调用此方法，则此方法将刷新网格并清除过滤器。但如果为 false，则此方法将只能清除过滤器。它没有参数，也不返回任何内容。

用法:

$('#Selector').jqxGrid('clearfilters');

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-1.11.1.min.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxcore.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqx-all.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/jqxmenu.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxgrid.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxgrid.selection.js”></script>

示例 1：下面的例子说明了jqxGridclearfilters()jQWidgets 中的方法。

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-1.11.1.min.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/jqxmenu.js"> 
    </script> 
    <script type="text/javascript" 
            src="jqwidgets/jqxgrid.js"> 
    </script> 
    <script type="text/javascript" 
            src="jqwidgets/jqxgrid.selection.js"> 
    </script> 
      <script type="text/javascript" 
            src="jqwidgets/jqxgrid.columnsresize.js"> 
    </script> 
</head> 
  
<body> 
    <center> 
        <h1 style="color: green"> 
            GeeksforGeeks 
        </h1>         
        <h3> 
              jQWidgets jqxGrid clearfilters()  
            method 
        </h3><br />         
      <div id="jqxg"></div>       
        <div> 
            <input type="button" 
                   id="jqxBtn" 
                   style="margin-top: 25px"
                   value="Click here" /> 
        </div>         
        <div id="log"></div>        
    </center> 
  
    <script type="text/javascript"> 
        $(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, 
                theme: 'energyblue', 
                filterable: true, 
                height: "240px", 
                width: "240px", 
                columns: [ 
                    { 
                        text: "Subject Name", 
                        datafield: "subjectnames", 
                        width: "120px", 
                    }, 
                    { 
                        text: "Page No.", 
                        datafield: "pagenumber", 
                        width: "120px", 
                    }, 
                ], 
            }); 
  
            $("#jqxBtn").jqxButton({ 
                width: "180px", 
                height: "30px", 
            }); 
            var fg = new $.jqx.filter(); 
            $("#jqxg").jqxGrid('addfilter', 'pagenumber', fg); 
            $("#jqxg").jqxGrid('applyfilters'); 
            $("#jqxBtn").on("click", function () { 
                $("#jqxg").jqxGrid('clearfilters'); 
                $("#log").text("Filters cleared!"); 
            }); 
        }); 
    </script> 
</body> 
</html>

输出：

示例 2：下面是另一个说明 jqxGrid 的示例clearfilters()jQWidgets 中的方法。

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-1.11.1.min.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/jqxmenu.js"> 
    </script> 
    <script type="text/javascript" 
            src="jqwidgets/jqxgrid.js"> 
    </script> 
    <script type="text/javascript" 
            src="jqwidgets/jqxgrid.selection.js"> 
    </script> 
      <script type="text/javascript" 
            src="jqwidgets/jqxgrid.columnsresize.js"> 
    </script> 
</head> 
  
<body> 
    <center> 
        <h1 style="color: green"> 
            GeeksforGeeks 
        </h1>         
        <h3> 
              jQWidgets jqxGrid clearfilters()  
            method 
        </h3><br />        
        <div id="jqxg"></div>        
        <div> 
            <input type="button" 
                   id="jqxBtn" 
                   style="margin-top: 25px" 
                   value="Click here" /> 
        </div>        
        <div id="log"></div>       
    </center> 
  
    <script type="text/javascript"> 
        $(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, 
                theme: 'energyblue', 
                filterable: true, 
                height: "240px", 
                width: "240px", 
                columns: [ 
                    { 
                        text: "Subject Name", 
                        datafield: "subjectnames", 
                        width: "120px", 
                    }, 
                    { 
                        text: "Page No.", 
                        datafield: "pagenumber", 
                        width: "120px", 
                    }, 
                ], 
            }); 
  
            $("#jqxBtn").jqxButton({ 
                width: "180px", 
                height: "30px", 
            }); 
            var add_filter = function () { 
                var fg = new $.jqx.filter(); 
                var val = 'C+'; 
                var conditn = 'contains'; 
                var opratr = 2; 
                var fltr = 
                    fg.createfilter('stringfilter', val, conditn); 
                fg.addfilter(opratr, fltr); 
                $("#jqxg").jqxGrid('addfilter', 'subjectnames', fg); 
            } 
            add_filter(); 
            $("#jqxg").jqxGrid('applyfilters'); 
            $("#jqxBtn").on("click", function () { 
                $("#jqxg").jqxGrid('clearfilters'); 
                $("#log").text("Filters cleared!") 
            }); 
        }); 
    </script> 
</body> 
</html>

输出：

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

相关用法

注：本文由纯净天空筛选整理自nidhi1352singh大神的英文原创作品 jQWidgets jqxGrid clearfilters() 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。