Selection

13 Feb 201818 minutes to read

Selection provides an interactive support to highlight the row, cell or column that you select. Selection can be done through simple Mouse down or Keyboard interaction. To enable selection, set allowSelection as true.

Types of Selection

There are two types of selections available in grid. They are

Single
Multiple

Single Selection

Single selection is an interactive support to select a specific row, cell or column in grid by mouse or keyboard interactions. To enable single selection, set selectionType property as single and also set allowSelection property as true.

Multiple Selections

Multiple selections is an interactive support to select a group of rows, cells or columns in grid by mouse or keyboard interactions. To enable multiple selections, set selectionType property as multiple and also set allowSelection property as true.

Row Selection

Row selection is enabled by setting selectionMode property of selectionSettings as row. For random row selection, press “Ctrl + mouse left” click and for continuous row selection press “Shift + mouse left” click on the grid rows. To unselect selected rows, press “Ctrl + mouse left” click on selected row.

The following code example describes the above behavior.

HTML

<ej-grid id="Grid" [dataSource]="gridData" allowPaging="true" allowSelection="true" selectionType="multiple" [selectionSettings]="selectionMode" >
    <e-columns>
        <e-column field="OrderID"  headerText="OrderID"></e-column>
        <e-column field="EmployeeID" headerText="EmployeeID"></e-column>
        <e-column field="ShipCity" headerText="ShipCity"></e-column>
        <e-column field="ShipCountry" headerText="ShipCountry"></e-column>
        <e-column field="Freight" headerText="Freight"></e-column>
    </e-columns>
 </ej-grid>

JAVASCRIPT

import {Component, ViewEncapsulation} from '@angular/core';
    @Component({
      selector: 'ej-app',
      templateUrl: 'app/app.component.html',  //give the path file for Grid control html file.
    })
    export class AppComponent {
        public gridData;
        public selectionMode;
        constructor()
        {
           //The datasource "window.gridData" is referred from 'http://js.syncfusion.com/demos/web/scripts/jsondata.min.js'
           this.gridData = window.gridData;
		   this.selectionMode = { selectionMode :["row"] };
         }
     }

The following output is displayed as a result of the above code example

Multiple Row Selection using Checkbox Column

Select multiple rows in grid by using Checkbox column and it can be enabled by set column type as checkbox. It also provides the option to select/deselect all the rows in Grid using a checkbox in the corresponding column header.

If the field property of Checkbox column is not defined, then it acts as a template column. So field property is necessary to perform grid actions like sorting, editing, etc., for the corresponding Checkbox column.

The following code example describes the above behavior.

HTML

<ej-grid id="Grid" [dataSource]="gridData" allowPaging="true">
    <e-columns>
        <e-column type="checkbox" width="50"></e-column> //enables the checkbox column
        <e-column field="OrderID" headerText="OrderID" width="80" textAlign="right"></e-column>
        <e-column field="CustomerID" headerText="CustomerID" width="75" ></e-column>
        <e-column field="EmployeeID" headerText="EmployeeID" width="75" textAlign="right"></e-column>
        <e-column field="Freight" headerText="Freight" width="75" textAlign="right" ></e-column>
    </e-columns>
 </ej-grid>

JAVASCRIPT

import {Component, ViewEncapsulation} from '@angular/core';
    @Component({
      selector: 'ej-app',
      templateUrl: 'app/app.component.html',  //give the path file for Grid control html file.
    })
    export class AppComponent {
        public gridData;
        constructor()
        {
           //The datasource "window.gridData" is referred from 'http://js.syncfusion.com/demos/web/scripts/jsondata.min.js'
           this.gridData = window.gridData;
		}
     }

The following output is displayed as a result of the above code example

Cell Selection

Cell selection is enabled by setting selectionMode property of selectionSettings as cell. For random cell selection, press “Ctrl + mouse left” click and for continuous cell selection, press “Shift + mouse left” click on the grid cells. To unselect selected cells, press “Ctrl + mouse left” on selected cell click.

HTML

<ej-grid id="Grid" [dataSource]="gridData" allowPaging="true" allowSelection="true" selectionType="multiple" [selectionSettings]="selectionMode" >
    <e-columns>
        <e-column field="OrderID" headerText="OrderID"></e-column>
        <e-column field="EmployeeID" headerText="EmployeeID"></e-column>
        <e-column field="ShipCity" headerText="ShipCity"></e-column>
        <e-column field="ShipCountry" headerText="ShipCountry"></e-column>
        <e-column field="Freight" headerText="Freight"></e-column>
    </e-columns>
 </ej-grid>

JAVASCRIPT

import {Component, ViewEncapsulation} from '@angular/core';
    @Component({
      selector: 'ej-app',
      templateUrl: 'app/app.component.html',  //give the path file for Grid control html file.
    })
    export class AppComponent {
        public gridData;
        public selectionMode;
        constructor()
        {
           //The datasource "window.gridData" is referred from 'http://js.syncfusion.com/demos/web/scripts/jsondata.min.js'
           this.gridData = window.gridData;
		   this.selectionMode = { selectionMode :["cell"] };
         }
     }

The following output is displayed as a result of the above code example

Cell Selection Mode

There are two types of cell selection available in grid. They are

Continuous Selection
Box Selection

Box cell selection is to select multiple cells vertically based on the initial column index selection.

The following code example describes the above behavior.

HTML

<ej-grid id="Grid" [dataSource]="gridData" allowPaging="true" allowSelection="true" selectionType="multiple" [selectionSettings]="selectionMode" >
    <e-columns>
        <e-column field="OrderID"  headerText="OrderID"></e-column>
        <e-column field="EmployeeID" headerText="EmployeeID"></e-column>
        <e-column field="ShipCity" headerText="ShipCity"></e-column>
        <e-column field="ShipCountry" headerText="ShipCountry"></e-column>
        <e-column field="Freight" headerText="Freight"></e-column>
    </e-columns>
</ej-grid>

JAVASCRIPT

import {Component, ViewEncapsulation} from '@angular/core';
    @Component({
      selector: 'ej-app',
      templateUrl: 'app/app.component.html',  //give the path file for Grid control html file.
    })
    export class AppComponent {
        public gridData;
        public selectionMode;
        constructor()
        {
           //The datasource "window.gridData" is referred from 'http://js.syncfusion.com/demos/web/scripts/jsondata.min.js'
           this.gridData = window.gridData;
		   this.selectionMode = { selectionMode :["cell"], cellSelectionMode: "box" };
         }
     }

The following output is displayed as a result of the above code example

NOTE

Continuous selection is the default cell selection mode in grid when selectionMode is “cell”

Column Selection

Column selection can be enabled by setting selectionMode property of selectionSettings as column. For random column selection, press “Ctrl + mouse left click” and for continuous column selection, press “Shift + mouse left click” on the top of the column header. To unselect selected columns, press “Ctrl + mouse left click” on top of the selected column header.

The following code example describes the above behavior.

HTML

<ej-grid id="Grid" [dataSource]="gridData" allowPaging="true" allowSelection="true" selectionType="multiple" [selectionSettings]="selectionMode" >
    <e-columns>
        <e-column field="OrderID"  headerText="OrderID"></e-column>
        <e-column field="EmployeeID" headerText="EmployeeID"></e-column>
        <e-column field="ShipCity" headerText="ShipCity"></e-column>
        <e-column field="ShipCountry" headerText="ShipCountry"></e-column>
        <e-column field="Freight" headerText="Freight"></e-column>
    </e-columns>
</ej-grid>

JAVASCRIPT

import {Component, ViewEncapsulation} from '@angular/core';
    @Component({
      selector: 'ej-app',
      templateUrl: 'app/app.component.html',  //give the path file for Grid control html file.
    })
    export class AppComponent {
        public gridData;
        public selectionMode;
        constructor()
        {
           //The datasource "window.gridData" is referred from 'http://js.syncfusion.com/demos/web/scripts/jsondata.min.js'
           this.gridData = window.gridData;
		   this.selectionMode = { selectionMode :["column"] };
         }
     }

The following output is displayed as a result of the above code example

Touch options

While using grid in a touch device environment, there is an option for multi selection through single tap on the row and it will show a popup with multi-selection symbol. Tap the icon to enable multi selection in a single tap.

The following code example describes the above behavior.

HTML

<ej-grid id="Grid" [dataSource]="gridData" allowPaging="true" allowSelection="true" selectionType="multiple" enableTouch="true" >
    <e-columns>
        <e-column field="OrderID"  headerText="OrderID"></e-column>
        <e-column field="EmployeeID" headerText="EmployeeID"></e-column>
        <e-column field="ShipCity" headerText="ShipCity"></e-column>
        <e-column field="ShipCountry" headerText="ShipCountry"></e-column>
        <e-column field="Freight" headerText="Freight"></e-column>
    </e-columns>
</ej-grid>

JAVASCRIPT

import {Component, ViewEncapsulation} from '@angular/core';
    @Component({
      selector: 'ej-app',
      templateUrl: 'app/app.component.html',  //give the path file for Grid control html file.
    })
    export class AppComponent {
        public gridData;
        constructor()
        {
           //The datasource "window.gridData" is referred from 'http://js.syncfusion.com/demos/web/scripts/jsondata.min.js'
           this.gridData = window.gridData;
		}
     }

The following output is displayed as a result of the above code example.

Toggle Selection

The Toggle selection allows to perform selection and unselection of the particular row, cell or column. To enable toggle selection, set enableToggle property of selectionSettings as true. If you click on the selected row, cell or column then it will be unselected and vice versa.

NOTE

If multi selection is enabled, then in first click on any selected row (without pressing Ctrl key), it will clear multi selection and in second click on the same row, it will be unselected.

The following code example describes the above behavior.

HTML

<ej-grid id="Grid" [dataSource]="gridData" allowPaging="true" allowSelection="true" selectionType="multiple" [selectionSettings]="selectionMode" >
    <e-columns>
        <e-column field="OrderID"  headerText="OrderID" ></e-column>
        <e-column field="EmployeeID" headerText="EmployeeID"></e-column>
        <e-column field="ShipCity" headerText="ShipCity"></e-column>
        <e-column field="ShipCountry" headerText="ShipCountry"></e-column>
        <e-column field="Freight" headerText="Freight"></e-column>
    </e-columns>
</ej-grid>

JAVASCRIPT

import {Component, ViewEncapsulation} from '@angular/core';
    @Component({
      selector: 'ej-app',
      templateUrl: 'app/app.component.html',  //give the path file for Grid control html file.
      providers:[NorthwindService]
    })
    export class AppComponent {
        public gridData;
        public selectionMode;
    	constructor()
        {
           //The datasource "window.gridData" is referred from 'http://js.syncfusion.com/demos/web/scripts/jsondata.min.js'
           this.gridData = window.gridData;
	
		   this.selectionMode = { enableToggle: true };
		   
		}
     }

Drag Selection

The Drag selection allows to perform selection of the particular rows or cells by performing mouse dragging. To enable drag selection, set allowDragSelection property of the selectionSettings as true. Now you can select the cells or rows in the Grid by dragging the mouse.

NOTE

The selectionType property should be set as multiple, to select multiple cells in Grid by mouse dragging.

The following code example describes the above behavior.

HTML

<ej-grid id="Grid" [dataSource]="gridData" [allowPaging]="true" [allowSelection]="true" [selectionType]="multiple" [selectionSettings]="selectionMode" >
    <e-columns>
        <e-column field="OrderID"  headerText="OrderID" ></e-column>
        <e-column field="EmployeeID" headerText="EmployeeID"></e-column>
        <e-column field="ShipCity" headerText="ShipCity"></e-column>
        <e-column field="ShipCountry" headerText="ShipCountry"></e-column>
        <e-column field="Freight" headerText="Freight"></e-column>
    </e-columns>
</ej-grid>

JAVASCRIPT

import {Component, ViewEncapsulation} from '@angular/core';
    @Component({
      selector: 'ej-app',
      templateUrl: 'app/app.component.html',  //give the path file for Grid control html file.
      providers:[NorthwindService]
    })
    export class AppComponent {
        public gridData;
        public selectionMode;
    	constructor()
        {
           //The datasource "(window as any).gridData" is referred from 'http://js.syncfusion.com/demos/web/scripts/jsondata.min.js'
           this.gridData = (window as any).gridData;
	
		   this.selectionMode = { selectionMode :["cell"], allowDragSelection: true };
		   
		}
     }

The following output is displayed as a result of the above code example.