Drag and drop in EJ2 JavaScript Query builder control

13 Jun 20247 minutes to read

The Query Builder provides the functionality to reposition rules or groups within the component effortlessly. This enhancement provides a more intuitive and flexible way to construct and modify queries. You can use allowDragAndDrop to perform drag and drop functionality. And we have events support for drag and drop features that, indicates the dragStart, drag and drop actions.

/**
   * Default querybuilder sample
   */
  var dateOperators = [
    { value: 'equal', key: 'Equal' },
    { value: 'greaterthan', key: 'Greater Than' },
    { value: 'greaterthanorequal', key: 'Greater Than Or Equal' },
    { value: 'lessthan', key: 'Less Than' },
    { value: 'lessthanorequal', key: 'Less Than Or Equal' },
    { value: 'notequal', key: 'Not Equal' },
    { value: 'between', key: 'Between' },
    { value: 'notbetween', key: 'Not Between' }
  ];
  var boolOperators = [
    { value: 'equal', key: 'Equal' },
  ];
  var columns = [
    { field: "EmployeeID", label: "Employee ID", type: "number" },
    { field: "FirstName", label: "First Name", type: "string" },
    { field: "LastName", label: "Last Name", type: "string" },
    { field: "Age", label: "Age", type: "number" },
    { field: "IsDeveloper", label: "Is Developer", type: "boolean", operators: boolOperators },
    { field: "PrimaryFramework", label: "Primary Framework", type: "string" },
    { field: "HireDate", label: "Hire Date", type: "date", format: "MM/dd/yyyy", operators: dateOperators },
    { field: "Country", label: "Country", type: "string" }
  ];
  var importRules = {
    condition: "and",
    rules: [
      { label: "First Name", field: "FirstName", type: "string", operator: "startswith", value: "Andre" },
      { label: "Last Name", field: "LastName", type: "string", operator: "in", value: ['Davolio', 'Buchanan'] },
      { label: "Age", field: "Age", type: "number", operator: "greaterthan", value: 29 },
      {
        condition: "or", rules: [
          { label: "Is Developer", field: "IsDeveloper", type: "boolean", operator: "equal", value: true },
          { label: "Primary Framework", field: "PrimaryFramework", type: "string", operator: "equal", value: "React" }
        ]
      },
      { label: "Hire Date", field: "HireDate", type: "date", operator: "between", value: ["11/22/2023", "11/30/2023"] },
    ],
  };
  var employeeData = [{
    'EmployeeID': 1,
    'FirstName': 'Nancy',
    'Title': 'Sales Representative',
    'TitleOfCourtesy': 'Ms.',
    'HireDate': '22/07/2001',
    'City': 'Seattle',
    'Country': 'USA'
  },
  {
    'EmployeeID': 2,
    'FirstName': 'Andrew',
    'Title': 'Vice President',
    'TitleOfCourtesy': 'Dr.',
    'HireDate': '21/04/2003',
    'City': 'Tacoma',
    'Country': 'USA'
  },
  {
    'EmployeeID': 3,
    'FirstName': 'Janet',
    'Title': 'Sales Representative',
    'TitleOfCourtesy': 'Ms.',
    'HireDate': '22/07/2001',
    'City': 'Kirkland',
    'Country': 'USA'
  }];
  var qryBldrObj = new ej.querybuilder.QueryBuilder({
    dataSource: employeeData,
    columns: columns,
    rule: importRules,
    allowDragAndDrop: true
  });
  qryBldrObj.appendTo('#querybuilder');
<!DOCTYPE html><html lang="en"><head>
    <title>EJ2 Query Builder</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="Typescript UI Controls">
    <meta name="author" content="Syncfusion">
    <link href="https://cdn.syncfusion.com/ej2/29.2.4/ej2-base/styles/material.css" rel="stylesheet">
    <link href="https://cdn.syncfusion.com/ej2/29.2.4/ej2-buttons/styles/material.css" rel="stylesheet">
    <link href="https://cdn.syncfusion.com/ej2/29.2.4/ej2-splitbuttons/styles/material.css" rel="stylesheet">
    <link href="https://cdn.syncfusion.com/ej2/29.2.4/ej2-dropdowns/styles/material.css" rel="stylesheet">
    <link href="https://cdn.syncfusion.com/ej2/29.2.4/ej2-inputs/styles/material.css" rel="stylesheet">
    <link href="https://cdn.syncfusion.com/ej2/29.2.4/ej2-calendars/styles/material.css" rel="stylesheet">
    <link href="https://cdn.syncfusion.com/ej2/29.2.4/ej2-popups/styles/material.css" rel="stylesheet">
    <link href="https://cdn.syncfusion.com/ej2/29.2.4/ej2-querybuilder/styles/material.css" rel="stylesheet">
    <link href="styles.css" rel="stylesheet">
    
    
    
<script src="https://cdn.syncfusion.com/ej2/29.2.4/dist/ej2.min.js" type="text/javascript"></script>
<script src="es5-datasource.js" type="text/javascript"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    
    <div id="container">
        <div id='querybuilder'></div>
    </div>

<script>
var ele = document.getElementById('container');
if(ele) {
  ele.style.visibility = "visible";
}   
      </script>
<script src="index.js" type="text/javascript"></script>
</body></html>