Selection

14 Nov 20176 minutes to read

Row selection

You can enable or disable the row selection in Gantt, by using allowSelection property. And you can able to get the selected row object using selectedItem property from the Gantt model. The following code example shows how to disable the row selection in Gantt.

JAVASCRIPT

<ej-gantt id="GanttControl" [allowSelection]="false"
    //...>
</ej-gantt>

Selecting a row on initial load

You can select a row on load time by setting the index of the row to selectedRowIndex property. Find the following code example for details.

JAVASCRIPT

<ej-gantt id="GanttControl" [selectedRowIndex]="selectedRowIndex"
    //...>
</ej-gantt>

JAVASCRIPT

import { Component } from '@angular/core';

@Component({
  selector: 'ej-app',
    templateUrl: 'app/app.component.html'
})
export class AppComponent {
  public selectedRowIndex:any;
  constructor() {
   //...
   this.selectedRowIndex=3;
  }
}

Selecting a row programmatically

You can also select a row programmatically by setting index of the row value to selectedRowIndex property. The following code shows to select a row programmatically with a custom button click action,

JAVASCRIPT

<button id="selectRow" (click)="selectRow($event)">SelectRow</button>

<ej-gantt id="GanttControl"
    //...>
</ej-gantt>

JAVASCRIPT

import { Component } from '@angular/core';

@Component({
  selector: 'ej-app',
    templateUrl: 'app/app.component.html',
})
export class AppComponent {
  constructor() {
   //...
  }
   public selectRow(event) {
         $("#GanttControl ").ejGantt("option", "selectedRowIndex", 4);
    }
}

Multiple row selection

It is also possible to select multiple rows by setting selectionType as multiple. You can select more than one row by holding down CTRL key while selecting multiple rows.
The following code example explains how to enable multiple selection in Gantt.

JAVASCRIPT

<ej-gantt id="GanttControl" selectionMode="row" selectionType= "multiple"
    //...>
</ej-gantt>

The output of the Gantt with multiple row selection is as follows.

To enable multiple selection, you can set selectionType property either as multiple or enumeration value ej.Gantt.SelectionType.Multiple.

Selecting multiple rows programmatically

You can also select multiple rows programmatically by using selectMultipleRows public method. The following code example explains how to enable multiple selection in Gantt.

JAVASCRIPT

<button id="selectMultipleRows" (click)="selectMultipleRows($event)">selectMultipleRows</button>

<ej-gantt id="GanttControl"
    //...>
</ej-gantt>

JAVASCRIPT

import {Component} from '@angular/core';

@Component({
    selector: 'ej-app',
    templateUrl: 'app/app.component.html',
})
export class AppComponent {
    constructor() {
        //...
    }
    public selectMultipleRows(event) {
        //create Gantt object
        var ganttObj = $("#GanttControl").data("ejGantt"),
        multipleRowIndex = [1,0,5,7];   
        ganttObj.selectMultipleRows(multipleRowIndex);
    }
}

Cell selection

You can select a cell in Gantt by setting selectionMode property as ‘cell’. And you can able to get the selected cell information using selectedCellIndexes property from the Gantt object. selectedCellIndexes is an object collection, which has the cell index and row index information of the selected cells.

Find the code example below to enable the cell selection in Gantt.

JAVASCRIPT

<ej-gantt id="GanttControl" selectionMode="cell"
    //...>
</ej-gantt>

The following screen shots shows you cell selection.

Selecting multiple cells

You can also select multiple cells by setting selectionType property as ‘multiple’ while selectionMode property is set to “cell”. Multiple cells can be selected by holding the ctrl key and to click on the cells. The following code example shows you to select multiple cells.

JAVASCRIPT

<ej-gantt id="GanttControl" selectionMode="cell" selectionType= "multiple"
    //...>
</ej-gantt>

Select cells programmatically

You can select the cells programmatically using selectCells public method. Find the code example below for details.

JAVASCRIPT

<button id="SelectMultipleCell" (click)="SelectMultipleCell($event)">SelectMultipleCells</button>

<ej-gantt id="GanttControl"
    //...>
</ej-gantt>

JAVASCRIPT

import {Component} from '@angular/core';

@Component({
    selector: 'ej-app',
    templateUrl: 'app/app.component.html',
})
export class AppComponent {
    constructor() {
        //...
    }
    public SelectMultipleCell(event) {
        //create Gantt object
        var ganttObj = $("#GanttControl").data("ejGantt");
        cellIndex = [{
            rowIndex: 2,
            cellIndex: 1
        }, {
            rowIndex: 3,
            cellIndex: 1
        }];
        ganttObj.selectCells(cellIndex);
    }
}

MultiSelection – Touch Option

It is possible to select rows using touch action in Gantt. Gantt provides support for both single selection and multiple row selection using touch action. For multiple row selection, when we tap on a cell, a helper icon will be displayed using which we can select multiple rows.

The following code example describes how to enable multiple selection in Gantt.

JAVASCRIPT

<ej-gantt id="GanttControl" selectionMode="row" selectionType= "multiple"
    //...>
</ej-gantt>

The following output is displayed the result of multiple selection in touch device environment.