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jQWidgets jqxGrid filter屬性用法及代碼示例


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。這江青網格用於說明以表格形式顯示數據的 jQuery 小部件。此外，它還全麵支持數據連接、分頁、分組、排序、過濾和編輯。

篩選property是一個回調函數，用於自定義過濾。它用於覆蓋內置的過濾。每當過濾網格時都會調用此屬性。它呈現布爾類型的值或返回“undefined”。它是函數類型，默認值為“null”。

用法:

  • 設置篩選 屬性：
$('Selector').jqxGrid({ filter: null });
  • 返回篩選屬性：
var filter = $('Selector').jqxGrid('filter');

該函數可以保存的值如下。

  • cellValue:它是單元格的現值。
  • rowData:它是一個JSON 對象保存當前行的數據。
  • dataField:它是過濾列的數據字段。
  • filterGroup:它是指定過濾器的組。
  • defaultFilterResult:這是過濾器規定的默認結果。

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-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：下麵的例子說明了jqxGrid篩選 jQWidgets 中的屬性。

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 filter property 
        </h3><br /> 
        <div id="jqxg"></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, 
                filter: function () { 
                    $("#log").text("Filtered!") 
                }, 
                height: "240px", 
                width: "270px", 
                columns: [ 
                    { 
                        text: "Subject Name", 
                        columntype: "textbox", 
                        filtertype: "input", 
                        datafield: "subjectnames", 
                        width: "90px", 
                    }, 
                    { 
                        text: "Page No.", 
                        datafield: "pagenumber", 
                        filtertype: "checkedlist", 
                        width: "90px", 
                    }, 
                    { 
                        text: "Exam", 
                        datafield: "exam", 
                        columntype: "checkbox", 
                        filtertype: "bool", 
                        width: "90px", 
                    }, 
                ], 
            }); 
        }); 
    </script> 
</body> 
</html>

輸出：

示例 2：下麵是另一個說明 jqxGrid 的示例篩選 jQWidgets 中的屬性，將其值設置為 “null”。

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 filter property 
        </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, 
                filter: null, 
                height: "240px", 
                width: "270px", 
                columns: [ 
                    { 
                        text: "Subject Name", 
                        columntype: "textbox", 
                        filtertype: "input", 
                        datafield: "subjectnames", 
                        width: "90px", 
                    }, 
                    { 
                        text: "Page No.", 
                        datafield: "pagenumber", 
                        filtertype: "checkedlist", 
                        width: "90px", 
                    }, 
                    { 
                        text: "Exam", 
                        datafield: "exam", 
                        columntype: "checkbox", 
                        filtertype: "bool", 
                        width: "90px", 
                    }, 
                ], 
            }); 
  
            $("#jqxBtn").jqxButton({ 
                width: "180px", 
                height: "30px", 
            }); 
            $("#jqxBtn").on("click", function () { 
                var f = $('#jqxg').jqxGrid('filter'); 
                $("#log").text(f) 
            }); 
        }); 
    </script> 
</body> 
</html>

輸出：

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



相關用法


注：本文由純淨天空篩選整理自nidhi1352singh大神的英文原創作品 jQWidgets jqxGrid filter Property。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。