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jQWidgets jqxGrid clearfilters() Method

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  • Last Updated : 10 Jul, 2022
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jQWidgets is a JavaScript framework for making web-based applications for PC and mobile devices. It is a very powerful, optimized, platform-independent, and widely supported framework. The jqxGrid is used to illustrate a jQuery widget that shows data in tabular form. Moreover, it renders full support for connecting with data, as well as paging, grouping, sorting, filtering, and editing.

The clearfilters() method is used to clear the stated filters to the displayed jqxGrid. Moreover, it has an optional parameter which is of type Boolean. Where, if the value of this parameter is true or this method is invoked without any parameter then this method will refresh the grid as well as clear the filter too. But if it is false then this method will only be able to clear the filters. It has no parameters and does not return anything.

Syntax:

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

Linked Files: Download jQWidgets from the given link. In the HTML file, locate the script files in the downloaded folder.

<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>

Example 1: The below example illustrates the jqxGrid clearfilters() method in jQWidgets.

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>


Output:

 

Example 2: The below is another example that illustrates the jqxGrid clearfilters() method in jQWidgets.

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>


Output:

 

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


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