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Frozen Rows and Columns in JavaScript Grid control

01 Dec 2022 / 6 minutes to read

Frozen rows and columns provides an option to make rows and columns always visible in the top and left side of the grid while scrolling.

To use frozen rows and columns support, inject the Freeze module in the grid.

In this demo, the frozenColumns is set as ‘2’ and the frozenRows is set as ‘3’. Hence, the left two columns and top three rows are frozen.

Source
Preview
index.ts
index.html
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import { Grid, Freeze, Selection } from '@syncfusion/ej2-grids';
import { data } from './datasource.ts';

Grid.Inject(Freeze, Selection);

let grid: Grid = new Grid({
    dataSource: data,
    height: 315,
    allowSelection: false,
    enableHover: false,
    frozenRows: 3,
    frozenColumns: 2,
    columns: [
        { field: 'OrderID', headerText: 'Order ID', textAlign: 'Right', width: 120 },
        { field: 'CustomerID', headerText: 'Customer ID', width: 150 },
        { field: 'OrderDate', headerText: 'Order Date', width: 130, format: 'yMd', textAlign: 'Right' },
        { field: 'EmployeeID', headerText: 'Employee ID', textAlign: 'Right', width: 120 },
        { field: 'ShipName', headerText: 'Ship Name', width: 150 },
        { field: 'ShipAddress', headerText: 'Ship Address', width: 170 },
        { field: 'ShipCity', headerText: 'Ship City', width: 150 },
        { field: 'ShipCountry', headerText: 'Ship Country', width: 150 },
        { field: 'ShipRegion', headerText: 'Ship Region', width: 150 },
        { field: 'ShipPostalCode', headerText: 'Ship Postal Code', width: 150 },
        { field: 'Freight', headerText: 'Freight', width: 120 }
    ]
});
grid.appendTo('#Grid');
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<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Grid</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript Grid Control" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-grids/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-navigations/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-dropdowns/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-lists/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-inputs/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-calendars/styles/material.css" rel="stylesheet" />
    
    
    
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-splitbuttons/styles/material.css" rel="stylesheet" />
    
    
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>
<body>
    <div id='loader'>Loading....</div>
    <div id='container' style='height:350px;'>
        <div id='Grid'></div>        
    </div>
</body>
</html>
  • Frozen rows and columns should not be set outside the grid view port.
  • Frozen Grid will support row and column virtualization feature, which helps to improve the Grid performance while loading a large dataset.

Limitations of Frozen Grid

The following features are not supported in frozen rows and columns:

  • Grouping
  • Row Template
  • Detail Template
  • Hierarchy Grid

Freeze particular columns

You can use isFrozen property to freeze selected columns in grid.

In this demo, the columns with field name OrderID and EmployeeID is frozen using the isFrozen property.

Source
Preview
index.ts
index.html
Copied to clipboard
import { Grid, Freeze, Selection } from '@syncfusion/ej2-grids';
import { data } from './datasource.ts';

Grid.Inject(Freeze, Selection);

let grid: Grid = new Grid({
dataSource: data,
height: 315,
allowSelection: false,
enableHover: false,
columns: [
    { field: 'OrderID', headerText: 'Order ID', textAlign: 'Right', width: 120, isFrozen: true },
    { field: 'CustomerID', headerText: 'Customer ID', width: 150 },
    { field: 'OrderDate', headerText: 'Order Date', width: 130, format: 'yMd', textAlign: 'Right' },
    { field: 'EmployeeID', headerText: 'Employee ID', textAlign: 'Right', width: 120, isFrozen: true },
    { field: 'ShipName', headerText: 'Ship Name', width: 150 },
    { field: 'ShipAddress', headerText: 'Ship Address', width: 170 },
    { field: 'ShipCity', headerText: 'Ship City', width: 150 },
    { field: 'ShipCountry', headerText: 'Ship Country', width: 150 },
    { field: 'ShipRegion', headerText: 'Ship Region', width: 150 },
    { field: 'ShipPostalCode', headerText: 'Ship Postal Code', width: 150 },
    { field: 'Freight', headerText: 'Freight', width: 120 }
]
});
grid.appendTo('#Grid');
Copied to clipboard
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Grid</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript Grid Control" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-grids/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-navigations/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-dropdowns/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-lists/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-inputs/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-calendars/styles/material.css" rel="stylesheet" />
    
    
    
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-splitbuttons/styles/material.css" rel="stylesheet" />
    
    
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>
<body>
    <div id='loader'>Loading....</div>
    <div id='container' style='height:350px;'>
        <div id='Grid'></div>        
    </div>
</body>
</html>
  • isFrozen is not compatible with the Freeze direction feature.

Freeze Direction

You can freeze the Grid columns on the left or right side by using the column.freeze property and the remaining columns will be movable. The grid will automatically move the columns to the left or right position based on the column.freeze value.

Types of the column.freeze directions:

  • Left: Allows you to freeze the columns at the left.
  • Right: Allows you to freeze the columns at the right.

In this demo, the ShipCountry column is frozen at the left and the CustomerID column is frozen at the right side of the content table.

Source
Preview
index.ts
index.html
Copied to clipboard
import { Grid, Freeze } from '@syncfusion/ej2-grids';
import { data } from './datasource.ts';

Grid.Inject(Freeze);

let grid: Grid = new Grid({
dataSource: data,
height: 315,
enableHover: false,
frozenRows: 2,
columns: [
    { field: 'OrderID', headerText: 'Order ID', textAlign: 'Right', width: 120 },
    { field: 'Freight', headerText: 'Freight', format: 'C2', width: 120 }
    { field: 'CustomerID', headerText: 'Customer ID', width: 150, freeze: 'Right' },
    { field: 'OrderDate', headerText: 'Order Date', width: 130, format: 'yMd', textAlign: 'Right' },
    { field: 'ShipName', headerText: 'Ship Name', width: 150 },
    { field: 'ShipAddress', headerText: 'Ship Address', width: 170 },
    { field: 'ShipCity', headerText: 'Ship City', width: 150 },
    { field: 'ShipCountry', headerText: 'Ship Country', width: 150, freeze: 'Left' }
]
});
grid.appendTo('#Grid');
Copied to clipboard
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Grid</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript Grid Control" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-grids/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-navigations/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-dropdowns/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-lists/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-inputs/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-calendars/styles/material.css" rel="stylesheet" />
    
    
    
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-splitbuttons/styles/material.css" rel="stylesheet" />
    
    
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>
<body>
    <div id='loader'>Loading....</div>
    <div id='container' style='height:350px;'>
        <div id='Grid'></div>        
    </div>
</body>
</html>

Limitations of Freeze Direction

This feature has the below limitations, along with the above mentioned Frozen Grid limitations.

  • Column virtualization
  • Infinite scroll cache mode
  • Freeze direction in the stacked header is not compatible with column reordering.

Add validation rule for frozen Grid

In a frozen column enabled Grid, Grid content will be separated into frozen and movable parts. The following code can be used to dynamically add validation to input fields that are placed in the movable part. In the actionComplete event args, you can find the movableform instance as an argument. Here, you can add validation rules dynamically.

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  actionComplete: (args: DialogEditEventArgs) => {
    if ((args.requestType === 'beginEdit' || args.requestType === 'add')) {
        // Add Validation Rules
        args.movableForm.ej2_instances[0].addRules('Freight', { max: 200 }); // Here, 'Freight' is the column name.
    }
}

Validation rules for the ‘EmployeeID’ and ‘Freight’ columns can be added in the sample below.

Source
Preview
index.ts
index.html
Copied to clipboard
import { Grid, Freeze, Selection, Edit, Toolbar, DialogEditEventArgs } from '@syncfusion/ej2-grids';
import { data } from './datasource.ts';

Grid.Inject(Freeze, Selection, Edit, Toolbar);

let grid: Grid = new Grid({
dataSource: data,
height: 315,
toolbar: ['Add', 'Edit', 'Delete', 'Update', 'Cancel'],
editSettings: {
    allowEditing: true,
    allowAdding: true,
    allowDeleting: true,
    mode: 'Normal',
},
allowSelection: false,
enableHover: false,
columns: [
    { field: 'OrderID', headerText: 'Order ID', textAlign: 'Right', isPrimaryKey: true, width: 120,
      isFrozen: true },
    { field: 'EmployeeID', headerText: 'Employee ID', textAlign: 'Right', width: 120,
    validationRules: { required: true }},
    { field: 'ShipName', headerText: 'Ship Name', width: 150 },
    { field: 'ShipAddress', headerText: 'Ship Address', width: 170 },
    { field: 'ShipCity', headerText: 'Ship City', width: 150 },
    { field: 'ShipCountry', headerText: 'Ship Country', width: 150, isFrozen: true },
    { field: 'Freight', headerText: 'Freight', width: 120, validationRules: { required: true } }
],
actionComplete: (args: DialogEditEventArgs) => {
    if (args.requestType === 'beginEdit' || args.requestType === 'add') {
        // Add Validation Rules
        args.movableForm.ej2_instances[0].addRules('Freight', { max: 200 });
        args.movableForm.ej2_instances[0].addRules('EmployeeID', { max: 20 });
    }
}
});
grid.appendTo('#Grid');
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<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Grid</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript Grid Control" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-grids/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-navigations/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-dropdowns/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-lists/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-inputs/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-calendars/styles/material.css" rel="stylesheet" />
    
    
    
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-splitbuttons/styles/material.css" rel="stylesheet" />
    
    
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>
<body>
    <div id='loader'>Loading....</div>
    <div id='container' style='height:350px;'>
        <div id='Grid'></div>        
    </div>
</body>
</html>

This is applicable when a frozen column is enabled and the edit mode is set as ”Normal” in the Grid.

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