Managing tasks in Angular Gantt component

13 May 202424 minutes to read

The Gantt component has options to dynamically insert, delete, and update tasks in the project. The primary key column is necessary to manage the tasks and perform CRUD operations in Gantt. To define the primary key, set the columns.isPrimaryKey property to true in the particular column.

To use CRUD, inject the EditService in the provider section of AppModule.

Note: If the Edit module is not injected, you cannot edit the tasks through the TreeGrid cells.

The following code example demonstrates editing in the Gantt component.

import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { GanttModule } from '@syncfusion/ej2-angular-gantt'
import { EditService } from '@syncfusion/ej2-angular-gantt'




import { Component, ViewEncapsulation, OnInit } from '@angular/core';
import { Gantt } from '@syncfusion/ej2-gantt';
import { EditSettingsModel } from '@syncfusion/ej2-angular-gantt';

@Component({
imports: [
         GanttModule
    ],

providers: [EditService],
standalone: true,
    selector: 'app-root',
    template:
       `<ejs-gantt id="ganttDefault" height="430px" [dataSource]="data" [taskFields]="taskSettings"  [editSettings]="editSettings" [columns]="columns"></ejs-gantt>`,
    encapsulation: ViewEncapsulation.None
})
export class AppComponent{
    // Data for Gantt
    public data?: object[];
    public taskSettings?: object;
    public columns?: object[];
    public editSettings?: EditSettingsModel;
    public ngOnInit(): void {
        this.data = [
            {
                TaskID: 1,
                TaskName: 'Project Initiation',
                StartDate: new Date('04/02/2019'),
                EndDate: new Date('04/21/2019'),
                subtasks: [
                    {  TaskID: 2, TaskName: 'Identify Site location', StartDate: new Date('04/02/2019'), Duration: 4, Progress: 50 },
                    { TaskID: 3, TaskName: 'Perform Soil test', StartDate: new Date('04/02/2019'), Duration: 4, Progress: 50  },
                    { TaskID: 4, TaskName: 'Soil test approval', StartDate: new Date('04/02/2019'), Duration: 4, Progress: 50 },
                ]
            },
            {
                TaskID: 5,
                TaskName: 'Project Estimation',
                StartDate: new Date('04/02/2019'),
                EndDate: new Date('04/21/2019'),
                subtasks: [
                    { TaskID: 6, TaskName: 'Develop floor plan for estimation', StartDate: new Date('04/04/2019'), Duration: 3, Progress: 50 },
                    { TaskID: 7, TaskName: 'List materials', StartDate: new Date('04/04/2019'), Duration: 3, Progress: 50 },
                    { TaskID: 8, TaskName: 'Estimation approval', StartDate: new Date('04/04/2019'), Duration: 3, Progress: 50 }
                ]
            },
        ];
        this.taskSettings = {
            id: 'TaskID',
            name: 'TaskName',
            startDate: 'StartDate',
            endDate: 'EndDate',
            duration: 'Duration',
            progress: 'Progress',
            child: 'subtasks'
        };
        this.editSettings = {
             allowEditing: true,
             mode:"Auto"
        };
        this.columns =  [
            { field: 'TaskID', headerText: 'Task ID', textAlign: 'Left', width: '100' },
            { field: 'TaskName', headerText: 'Task Name', width: '250' },
            { field: 'StartDate', headerText: 'Start Date', width: '150' },
            { field: 'Duration', headerText: 'Duration', width: '150' },
            { field: 'Progress', headerText: 'Progress', width: '150' },
        ];
    }
}
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));

Troubleshoot: Editing works only when primary key column is defined

Editing feature requires a primary key column for CRUD operations. While defining columns in Gantt using the columns property, it is mandatory that any one of the columns, must be a primary column. By default, the id column will be the primary key column. If id column is not defined, we need to enable isPrimaryKey for any one of the columns defined in the columns property.

Open new task dialog with default values

You can set default values when new task dialog opens using actionBegin event when requestType is beforeOpenAddDialog.

import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { GanttModule } from '@syncfusion/ej2-angular-gantt'
import { ToolbarService,EditService } from '@syncfusion/ej2-angular-gantt'




import { Component, ViewEncapsulation, OnInit } from '@angular/core';

@Component({
imports: [
         GanttModule
    ],

providers: [ToolbarService,EditService],
standalone: true,
selector: 'app-root',
template:
   `<ejs-gantt id="ganttDefault" height="430px" [dataSource]="data" [taskFields]="taskSettings" [editSettings]="editSettings" [toolbar]="toolbar" (actionBegin)="onActionBegin($event)"></ejs-gantt>`,
encapsulation: ViewEncapsulation.None
})
export class AppComponent{
// Data for Gantt
public data?: object[];
public taskSettings?: object;
public editSettings?: object;
public toolbar?: string[];
public ngOnInit(): void {
    this.data =  [
        {
            TaskID: 1,
            TaskName: 'Project Initiation',
            StartDate: new Date('04/02/2019'),
            EndDate: new Date('04/21/2019'),
            subtasks: [
                {  TaskID: 2, TaskName: 'Identify Site location', StartDate: new Date('04/02/2019'), Duration: 4, Progress: 50 },
                { TaskID: 3, TaskName: 'Perform Soil test', StartDate: new Date('04/02/2019'), Duration: 4, Progress: 50  },
                { TaskID: 4, TaskName: 'Soil test approval', StartDate: new Date('04/02/2019'), Duration: 4, Progress: 50 },
            ]
        },
        {
            TaskID: 5,
            TaskName: 'Project Estimation',
            StartDate: new Date('04/02/2019'),
            EndDate: new Date('04/21/2019'),
            subtasks: [
                { TaskID: 6, TaskName: 'Develop floor plan for estimation', StartDate: new Date('04/04/2019'), Duration: 3, Progress: 50 },
                { TaskID: 7, TaskName: 'List materials', StartDate: new Date('04/04/2019'), Duration: 3, Progress: 50 },
                { TaskID: 8, TaskName: 'Estimation approval', StartDate: new Date('04/04/2019'), Duration: 3, Progress: 50 }
            ]
        },
    ];
    this.taskSettings = {
        id: 'TaskID',
        name: 'TaskName',
        startDate: 'StartDate',
        duration: 'Duration',
        progress: 'Progress',
        child: 'subtasks'
    };

    this.editSettings = {
        allowAdding:true
        };
        this.toolbar = ['Add'];
}
public onActionBegin(args: any) {
    if (args.requestType == 'beforeOpenAddDialog') {
           args.rowData.TaskName = 'Gantt';
           args.rowData.Progress = 70;
           args.rowData.ganttProperties.taskName = 'Gantt';
           args.rowData.ganttProperties.progress = 70;
       }
  };
}
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));

Cell edit type and its params

The columns.editType is used to define the edit type for any particular column.
You can set the columns.editType based on data type of the column.

  • numericedit - NumericTextBox component for integers, double, and decimal data types.

  • defaultedit - TextBox component for string data type.

  • dropdownedit - DropDownList component to show all unique values related to that field.

  • booleanedit - CheckBox component for boolean data type.

  • datepickeredit - DatePicker component for date data type.

  • datetimepickeredit - DateTimePicker component for date time data type.

Also, you can customize the behavior of the editor component through the columns.edit.params.

The following table describes cell edit type component and their corresponding edit params of the column.

Edit Type Component Example
numericedit NumericTextBox params: { decimals: 2, value: 5 }
dropdownedit DropDownList params: { value: ‘Germany’ }
booleanedit Checkbox params: { checked: true}
datepickeredit DatePicker params: { format:’dd.MM.yyyy’ }
datetimepickeredit DateTimePicker params: { value: new Date() }
import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { GanttModule } from '@syncfusion/ej2-angular-gantt'
import { EditService, ToolbarService } from '@syncfusion/ej2-angular-gantt'




import { Component, ViewEncapsulation, OnInit } from '@angular/core';
import { ToolbarItem, EditSettingsModel } from '@syncfusion/ej2-angular-gantt';
import { Gantt } from '@syncfusion/ej2-gantt';

@Component({
imports: [
         GanttModule
    ],

providers: [EditService, ToolbarService],
standalone: true,
    selector: 'app-root',
    template:
       `<ejs-gantt id="ganttDefault" height="430px" [dataSource]="data" [taskFields]="taskSettings" [editSettings]="editSettings" [columns]="columns"></ejs-gantt>`,
    encapsulation: ViewEncapsulation.None
})
export class AppComponent{
    // Data for Gantt
    public data?: object[];
    public taskSettings?: object;
    public editSettings?: EditSettingsModel;
    public columns?: object[];
    public ngOnInit(): void {
        this.data =  [
            {
                TaskID: 1,
                TaskName: 'Project Initiation',
                StartDate: new Date('04/02/2019'),
                EndDate: new Date('04/21/2019'),
                subtasks: [
                    {  TaskID: 2, TaskName: 'Identify Site location', StartDate: new Date('04/02/2019'), Duration: 4, Progress: 50 },
                    { TaskID: 3, TaskName: 'Perform Soil test', StartDate: new Date('04/02/2019'), Duration: 4, Progress: 50  },
                    { TaskID: 4, TaskName: 'Soil test approval', StartDate: new Date('04/02/2019'), Duration: 4, Progress: 50 },
                ]
            },
            {
                TaskID: 5,
                TaskName: 'Project Estimation',
                StartDate: new Date('04/02/2019'),
                EndDate: new Date('04/21/2019'),
                subtasks: [
                    { TaskID: 6, TaskName: 'Develop floor plan for estimation', StartDate: new Date('04/04/2019'), Duration: 3, Progress: 50 },
                    { TaskID: 7, TaskName: 'List materials', StartDate: new Date('04/04/2019'), Duration: 3, Progress: 50 },
                    { TaskID: 8, TaskName: 'Estimation approval', StartDate: new Date('04/04/2019'), Duration: 3, Progress: 50 }
                ]
            },
        ];
        this.taskSettings = {
            id: 'TaskID',
            name: 'TaskName',
            startDate: 'StartDate',
            duration: 'Duration',
            progress: 'Progress',
            child: 'subtasks'
        };
        this.editSettings = {
            allowEditing: true
            };
        this.columns = [
            { field: 'TaskID', headerText: 'Task ID' },
            { field: 'TaskName', headerText: 'Task Name' },
            { field: 'StartDate', headerText: 'Start Date'  },
            { field: 'Duration', headerText: 'Duration', editType:'numericedit', edit: { params: { min:1 }}, valueAccessor: this.durationFormat },
            { field: 'Progress', headerText: 'Progress', edit: { params: { showSpinButton: false }  } },
        ];
    }
    public durationFormat = (field: string, data: Object, column: Object)=> {
      return (data as any)[field];
    }
}
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));

Cell Edit Template

The cell edit template is used to create a custom component for a particular column by invoking the following functions:

  • create - It is used to create the element at the time of initialization.

  • write - It is used to create the custom component or assign default value at the time of editing.

  • read - It is used to read the value from the component at the time of save.

  • destroy - It is used to destroy the component.

import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { GanttModule } from '@syncfusion/ej2-angular-gantt'
import { EditService, SelectionService, ToolbarService } from '@syncfusion/ej2-angular-gantt'




import { Component, ViewEncapsulation, OnInit, ViewChild } from '@angular/core';
import { GanttComponent } from '@syncfusion/ej2-angular-gantt';
import { EditSettingsModel } from '@syncfusion/ej2-angular-gantt';
import { DropDownList } from "@syncfusion/ej2-dropdowns";
import { Gantt } from '@syncfusion/ej2-gantt';

@Component({
imports: [
         GanttModule
    ],

providers: [EditService, SelectionService, ToolbarService],
standalone: true,
    selector: 'app-root',
    template:
       `<ejs-gantt #gantt id="ganttDefault" height="430px" [dataSource]="data" [taskFields]="taskSettings" [editSettings]="editSettings" [columns]="columns"></ejs-gantt>`,
    encapsulation: ViewEncapsulation.None
})
export class AppComponent{
    // Data for Gantt
    @ViewChild('gantt', {static: true})
    public ganttObj?: GanttComponent| any;
    public data?: object[];
    public taskSettings?: object;
    public editSettings?: EditSettingsModel;
    public columns?: object[];
    public elem?: HTMLElement;
    public dropdownlistObj?: DropDownList| any;
    public ngOnInit(): void {
        this.data =  [
            {
                TaskID: 1,
                TaskName: 'Project Initiation',
                StartDate: new Date('04/02/2019'),
                EndDate: new Date('04/21/2019'),
                subtasks: [
                    {  TaskID: 2, TaskName: 'Identify Site location', StartDate: new Date('04/02/2019'), Duration: 4, Progress: 50 },
                    { TaskID: 3, TaskName: 'Perform Soil test', StartDate: new Date('04/02/2019'), Duration: 4, Progress: 50  },
                    { TaskID: 4, TaskName: 'Soil test approval', StartDate: new Date('04/02/2019'), Duration: 4, Progress: 50 },
                ]
            },
            {
                TaskID: 5,
                TaskName: 'Project Estimation',
                StartDate: new Date('04/02/2019'),
                EndDate: new Date('04/21/2019'),
                subtasks: [
                    { TaskID: 6, TaskName: 'Develop floor plan for estimation', StartDate: new Date('04/04/2019'), Duration: 3, Progress: 50 },
                    { TaskID: 7, TaskName: 'List materials', StartDate: new Date('04/04/2019'), Duration: 3, Progress: 50 },
                    { TaskID: 8, TaskName: 'Estimation approval', StartDate: new Date('04/04/2019'), Duration: 3, Progress: 50 }
                ]
            },
        ];
        this.taskSettings = {
            id: 'TaskID',
            name: 'TaskName',
            startDate: 'StartDate',
            duration: 'Duration',
            progress: 'Progress',
            child: 'subtasks'
        };
        this.editSettings = {
            allowEditing: true
            };
        this.columns = [
            { field: 'TaskID', headerText: 'Task ID' },
            {
            field: 'TaskName', headerText: 'Task Name',
            edit: {
                    create: () => {
                        this.elem = document.createElement('input');
                        return this.elem;
                    },
                    read: () => {
                        return this.dropdownlistObj.value;
                    },
                    destroy: () => {
                        this.dropdownlistObj.destroy();
                    },
                    write: (args: Object) => {
                        this.dropdownlistObj = new DropDownList({
                            dataSource: this.ganttObj.treeGrid.grid.dataSource,
                            fields: { value: 'TaskName' },
                            value: (args as any).rowData[(args as any).column.field],
                            floatLabelType: 'Auto',
                        });
                        this.dropdownlistObj.appendTo(this.elem);
                    }
                }
            },
            { field: 'StartDate', headerText: 'Start Date' },
            { field: 'Duration', headerText: 'Duration' },
            { field: 'Progress', headerText: 'Progress' },
        ];
    }
}
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));

Disable editing for particular column

You can disable editing for particular columns, by using the columns.allowEditing property.

In the following demo, editing is disabled for the TaskName column.

import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { GanttModule } from '@syncfusion/ej2-angular-gantt'
import { EditService, ToolbarService } from '@syncfusion/ej2-angular-gantt'




import { Component, ViewEncapsulation, OnInit } from '@angular/core';
import { ToolbarItem, EditSettingsModel } from '@syncfusion/ej2-angular-gantt';
import { Gantt } from '@syncfusion/ej2-gantt';

@Component({
imports: [
         GanttModule
    ],

providers: [EditService, ToolbarService],
standalone: true,
    selector: 'app-root',
    template:
       `<ejs-gantt id="ganttDefault" height="430px" [dataSource]="data" [taskFields]="taskSettings" [editSettings]="editSettings" [columns]="columns"></ejs-gantt>`,
    encapsulation: ViewEncapsulation.None
})
export class AppComponent{
    // Data for Gantt
    public data?: object[];
    public taskSettings?: object;
    public editSettings?: EditSettingsModel;
    public columns?: object[];
    public ngOnInit(): void {
        this.data =  [
            {
                TaskID: 1,
                TaskName: 'Project Initiation',
                StartDate: new Date('04/02/2019'),
                EndDate: new Date('04/21/2019'),
                subtasks: [
                    {  TaskID: 2, TaskName: 'Identify Site location', StartDate: new Date('04/02/2019'), Duration: 4, Progress: 50 },
                    { TaskID: 3, TaskName: 'Perform Soil test', StartDate: new Date('04/02/2019'), Duration: 4, Progress: 50  },
                    { TaskID: 4, TaskName: 'Soil test approval', StartDate: new Date('04/02/2019'), Duration: 4, Progress: 50 },
                ]
            },
            {
                TaskID: 5,
                TaskName: 'Project Estimation',
                StartDate: new Date('04/02/2019'),
                EndDate: new Date('04/21/2019'),
                subtasks: [
                    { TaskID: 6, TaskName: 'Develop floor plan for estimation', StartDate: new Date('04/04/2019'), Duration: 3, Progress: 50 },
                    { TaskID: 7, TaskName: 'List materials', StartDate: new Date('04/04/2019'), Duration: 3, Progress: 50 },
                    { TaskID: 8, TaskName: 'Estimation approval', StartDate: new Date('04/04/2019'), Duration: 3, Progress: 50 }
                ]
            },
        ];
        this.taskSettings = {
            id: 'TaskID',
            name: 'TaskName',
            startDate: 'StartDate',
            duration: 'Duration',
            progress: 'Progress',
            child: 'subtasks'
        };
        this.editSettings = {
            allowEditing: true
            };
        this.columns = [
            { field: 'TaskID', headerText: 'Task ID' },
            { field: 'TaskName', headerText: 'Task Name', allowEditing: false },
            { field: 'StartDate', headerText: 'Start Date', },
            { field: 'Duration', headerText: 'Duration' },
            { field: 'Progress', headerText: 'Progress'  },
        ];
    }
}
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));

Customize control in add/edit dialog

In Gantt Chart, the controls such as form elements, grid and RTE in add and edit dialog can be customized by using additionalParams property.

Customize general tab of dialog

In the general tab of add/edit dialog, the custom input fields can be included into fields by defining the field names either from the data source or template in addDialogFields and editDialogFields respectively.

In the below sample, added field from the template to general tab.

import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { GanttModule } from '@syncfusion/ej2-angular-gantt'
import { EditService, ToolbarService } from '@syncfusion/ej2-angular-gantt'




import { Component, ViewEncapsulation, OnInit } from '@angular/core';
import { ToolbarItem, EditSettingsModel } from '@syncfusion/ej2-angular-gantt';
import { Gantt } from '@syncfusion/ej2-gantt';
import{projectData , editingResources}from "./data" 

@Component({
imports: [
         GanttModule
    ],

providers: [EditService, ToolbarService],
standalone: true,
    selector: 'app-root',
    template:
       `<ejs-gantt id="ganttDefault" height="430px" [dataSource]="data" [resources]="resources" [resourceFields]="resourceFields" [taskFields]="taskSettings" [editSettings]="editSettings" [toolbar]="toolbar" [editDialogFields]="editDialogFields" [addDialogFields]="addDialogFields" [columns]="columns"></ejs-gantt>`,
    encapsulation: ViewEncapsulation.None
})
export class AppComponent{
    // Data for Gantt
    public data?: object[];
    public resources?: object[];
    public resourceFields?: { id: string; name: string; unit: string; group: string; } | undefined;
    public taskSettings?: object;
    public editSettings?: EditSettingsModel;
    public editDialogFields?: object[];
    public addDialogFields?: object[];
    public toolbar?: ToolbarItem[];
    public columns?: object[];
    public ngOnInit(): void {
        this.data = projectData;
        this.toolbar =  ['Add', 'Edit', 'Delete', 'Update', 'Cancel', 'ExpandAll', 'CollapseAll'];
        this.taskSettings = {
            id: 'TaskID',
            name: 'TaskName',
            startDate: 'StartDate',
            endDate: 'EndDate',
            duration: 'Duration',
            progress: 'Progress',
            dependency: 'Predecessor',
            resourceInfo: 'resources',
            work: 'work',
            child: 'subtasks',
            segments: 'Segments',
            notes:"note",
        };
        this.resources = editingResources;
        this.resourceFields = {
            id: 'resourceId',
            name: 'resourceName',
            unit: 'resourceUnit',
            group: 'resourceGroup'
        };
        this.editSettings = {
            allowAdding: true,
            allowEditing: true,
            allowDeleting: true,
            allowTaskbarEditing: true,
            showDeleteConfirmDialog: true
            };
        this.editDialogFields = [
            { type: 'General', headerText: 'General add',fields:["TaskID", "TaskName","newInput"]},
            { type: 'Dependency'},
            { type: 'Resources'}, 
            { type: 'Notes' },
            {type:"Segments"}
        ];
        this.addDialogFields = [
            { type: 'General', headerText: 'General edit', fields: ["TaskID", "TaskName", "newInput"] },
            {type: 'Dependency'},
            { type: 'Resources'},
            {type: 'Notes'},
            {type: "Segments"}
        ];    
        this.columns = [
            { field: 'TaskID', headerText: 'Task ID' },
            { field: 'TaskName', headerText: 'Task Name', allowEditing: false },
            { field: 'StartDate', headerText: 'Start Date', },
            { field: 'Duration', headerText: 'Duration' },
            { field: 'Progress', headerText: 'Progress'  },
        ];
    }
}
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));

Customize dependency, segments and resources tab of dialog

Grid component in the dependency, segment and resource tab of add/edit dialog can be customized, by defining grid module properties in the additionalParams property of addDialogFields and editDialogFields.

In the below code show cases, how to add additional features to dependency, segments and resources tab.

import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { GanttModule } from '@syncfusion/ej2-angular-gantt'
import { EditService, ToolbarService } from '@syncfusion/ej2-angular-gantt'




import { Component, ViewEncapsulation, OnInit } from '@angular/core';
import { ToolbarItem, EditSettingsModel } from '@syncfusion/ej2-angular-gantt';
import { Gantt } from '@syncfusion/ej2-gantt';
import{projectData , editingResources}from "./data" 

@Component({
imports: [
         GanttModule
    ],

providers: [EditService, ToolbarService],
standalone: true,
    selector: 'app-root',
    template:
       `<ejs-gantt id="ganttDefault" height="430px" [dataSource]="data" [resources]="resources" [resourceFields]="resourceFields" [taskFields]="taskSettings" [editSettings]="editSettings" [toolbar]="toolbar" [editDialogFields]="editDialogFields" [addDialogFields]="addDialogFields" [columns]="columns"></ejs-gantt>`,
    encapsulation: ViewEncapsulation.None
})
export class AppComponent{
    // Data for Gantt
    public data?: object[];
    public resources?: object[];
    public resourceFields?: { id: string; name: string; unit: string; group: string; } | undefined;
    public taskSettings?: object;
    public editSettings?: EditSettingsModel;
    public editDialogFields?: object[];
    public addDialogFields?: object[];
    public toolbar?: ToolbarItem[];
    public columns?: object[];
    public ngOnInit(): void {
        this.data = projectData;
        this.toolbar =  ['Add', 'Edit', 'Delete', 'Update', 'Cancel', 'ExpandAll', 'CollapseAll'];
        this.taskSettings = {
            id: 'TaskID',
            name: 'TaskName',
            startDate: 'StartDate',
            endDate: 'EndDate',
            duration: 'Duration',
            progress: 'Progress',
            dependency: 'Predecessor',
            resourceInfo: 'resources',
            work: 'work',
            child: 'subtasks',
            segments: 'Segments',
        };
        this.resources = editingResources;
        this.resourceFields = {
            id: 'resourceId',
            name: 'resourceName',
            unit: 'resourceUnit',
            group: 'resourceGroup'
        };
        this.editSettings = {
            allowAdding: true,
            allowEditing: true,
            allowDeleting: true,
            allowTaskbarEditing: true,
            showDeleteConfirmDialog: true
            };
        this.editDialogFields = [
            { type: 'General', headerText: 'General add'},
            { type: 'Dependency', additionalParams: {allowPaging: true, allowSorting: true, toolbar: ["Search", "Print",]}},
            { type: 'Resources'} , 
            {type:"Segments", additionalParams:{columns:[{field:"segmenttask",width:"170px" ,headerText:"Segment Task"}],}}
        ];
        this.addDialogFields = [
            { type: 'General', headerText: 'General edit'},
            {type: 'Dependency', additionalParams: {allowPaging: true, allowSorting: true, toolbar: ["Search", "Print",]}},
            { type: 'Resources', additionalParams: { allowSorting: true, allowPaging: true, toolbar: ["Search", "Print"], columns: [{ field: "newData" }]}},
            {type: "Segments", additionalParams: {columns: [{ field: "segmentTask", width: "170px", headerText: "Segment Task" }],}},
        ];    
        this.columns = [
            { field: 'TaskID', headerText: 'Task ID' },
            { field: 'TaskName', headerText: 'Task Name', allowEditing: false },
            { field: 'StartDate', headerText: 'Start Date', },
            { field: 'Duration', headerText: 'Duration' },
            { field: 'Progress', headerText: 'Progress'  },
        ];
    }
}
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));

Customize note dialog tab

RTE component in notes tab of add and edit dialog can be customized, by defining RTE module properties in the additionalParams property of addDialogFields and editDialogFields.

The below code shows how to enable inline mode to RTE in notes tab.

import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { GanttModule } from '@syncfusion/ej2-angular-gantt'
import { EditService, ToolbarService } from '@syncfusion/ej2-angular-gantt'




import { Component, ViewEncapsulation, OnInit } from '@angular/core';
import { ToolbarItem, EditSettingsModel } from '@syncfusion/ej2-angular-gantt';
import { Gantt } from '@syncfusion/ej2-gantt';
import{projectData , editingResources}from "./data" 

@Component({
imports: [
         GanttModule
    ],

providers: [EditService, ToolbarService],
standalone: true,
    selector: 'app-root',
    template:
       `<ejs-gantt id="ganttDefault" height="430px" [dataSource]="data" [resources]="resources" [resourceFields]="resourceFields" [taskFields]="taskSettings" [editSettings]="editSettings" [toolbar]="toolbar" [editDialogFields]="editDialogFields" [addDialogFields]="addDialogFields" [columns]="columns"></ejs-gantt>`,
    encapsulation: ViewEncapsulation.None
})
export class AppComponent{
    // Data for Gantt
    public data?: object[];
    public resources?: object[];
    public resourceFields?: { id: string; name: string; unit: string; group: string; } | undefined;
    public taskSettings?: object;
    public editSettings?: EditSettingsModel;
    public editDialogFields?: object[];
    public addDialogFields?: object[];
    public toolbar?: ToolbarItem[];
    public columns?: object[];
    public ngOnInit(): void {
        this.data = projectData;
        this.toolbar =  ['Add', 'Edit', 'Delete', 'Update', 'Cancel', 'ExpandAll', 'CollapseAll'];
        this.taskSettings = {
            id: 'TaskID',
            name: 'TaskName',
            startDate: 'StartDate',
            endDate: 'EndDate',
            duration: 'Duration',
            progress: 'Progress',
            dependency: 'Predecessor',
            resourceInfo: 'resources',
            work: 'work',
            child: 'subtasks',
            notes:"note",
        };
        this.resources = editingResources;
        this.resourceFields = {
            id: 'resourceId',
            name: 'resourceName',
            unit: 'resourceUnit',
            group: 'resourceGroup'
        };
        this.editSettings = {
            allowAdding: true,
            allowEditing: true,
            allowDeleting: true,
            allowTaskbarEditing: true,
            showDeleteConfirmDialog: true
            };
        this.editDialogFields = [
            { type: 'General'},
            { type: 'Dependency'},
            { type: 'Resources'} , 
            { type: 'Notes',additionalParams: {inlineMode: { enable: true,onSelection: true }} },
        ];
        this.addDialogFields = [
            { type: 'General', headerText: 'General edit'},
            { type: 'Dependency'},
            { type: 'Resources'},
            {type: 'Notes', additionalParams: {inlineMode: { enable: true,onSelection: true }}},

        ];    
        this.columns = [
            { field: 'TaskID', headerText: 'Task ID' },
            { field: 'TaskName', headerText: 'Task Name', allowEditing: false },
            { field: 'StartDate', headerText: 'Start Date', },
            { field: 'Duration', headerText: 'Duration' },
            { field: 'Progress', headerText: 'Progress'  },
        ];
    }
}
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));

Touch interation

The Gantt control editing actions can be achieved using the double tap and tap and drag actions on a element.

The following table describes different types of editing modes available in Gantt.

Action Description
Cell editing To perform double tap on a specific cell, initiate the cell to be in edit state.
Dialog editing To perform double tap on a specific row, initiate the edit dialog to be opened.
Taskbar editing Taskbar editing action is initiated using the tap action on the taskbar.
Parent taskbar : Once you tap on the parent taskbar, it will be changed to editing state. Perform only dragging action on parent taskbar editing.
Alt text
Child taskbar : Once you tap the child taskbar, it will be changed to editing state.
Alt text
Dragging taskbar : To drag a taskbar to the left or right in editing state.

Resizing taskbar : To resize a taskbar, drag the left/right resize icon.

Progress resizing : To change the progress, drag the progress resize icon to the left or right direction.

Task dependency editing

You can tap the left/right connector point to initiate task dependencies edit mode and again tap another taskbar to establish the dependency line between two taskbars.

The following table explains the taskbar state in dependency edit mode.

Taskbar states

Taskbar state Description
Parent taskbar You cannot create dependency relationship to parent tasks.
Parent taskbar
Taskbar without dependency If you tap a valid child taskbar, it will create FS type dependency line between tasks, otherwise exits from task dependency edit mode.
Valid taskbar
Taskbar with dependency If you tap the second taskbar, which has already been directly connected, it will ask to remove it.
Invalid taskbar
Removing dependency Once you tap the taskbar with direct dependency, then confirmation dialog will be shown for removing dependency.
Confirm dialog
import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { GanttModule } from '@syncfusion/ej2-angular-gantt'
import { EditService, SelectionService } from '@syncfusion/ej2-angular-gantt'




import { Component, ViewEncapsulation, OnInit, ViewChild } from '@angular/core';
import { Gantt } from '@syncfusion/ej2-gantt';
import { GanttComponent } from '@syncfusion/ej2-angular-gantt';


@Component({
imports: [
         GanttModule
    ],

providers: [EditService, SelectionService],
standalone: true,
    selector: 'app-root',
    template:
       `<ejs-gantt #gantt id="ganttDefault" height="430px" [dataSource]="data" [taskFields]="taskSettings" [editSettings]="editSettings" (load)="load()"></ejs-gantt>`,
    encapsulation: ViewEncapsulation.None
})
export class AppComponent{
    // Data for Gantt
    public data?: object[];
    public taskSettings?: object;
    public editSettings?: object;
    @ViewChild('gantt', {static: true})
    public ganttObj?: GanttComponent;
    public ngOnInit(): void {
        this.data = [
            {
                TaskID: 1,
                TaskName: 'Project Initiation',
                StartDate: new Date('04/02/2019'),
                EndDate: new Date('04/21/2019'),
                subtasks: [
                    { TaskID: 2, TaskName: 'Identify Site location', StartDate: new Date('04/02/2019'), Duration: 3, Progress: 50 },
                    { TaskID: 3, TaskName: 'Perform Soil test', StartDate: new Date('04/02/2019'), Duration: 4, Progress: 50  },
                    { TaskID: 4, TaskName: 'Soil test approval', StartDate: new Date('04/02/2019'), Duration: 4,Predecessor:"2FS", Progress: 50 },
                ]
            },
            {
                TaskID: 5,
                TaskName: 'Project Estimation',
                StartDate: new Date('04/02/2019'),
                EndDate: new Date('04/21/2019'),
                subtasks: [
                    { TaskID: 6, TaskName: 'Develop floor plan for estimation', StartDate: new Date('04/04/2019'), Duration: 3, Progress: 50 },
                    { TaskID: 7, TaskName: 'List materials', StartDate: new Date('04/04/2019'), Duration: 3, Progress: 50 },
                    { TaskID: 8, TaskName: 'Estimation approval', StartDate: new Date('04/04/2019'), Duration: 4,Predecessor:"6SS", Progress: 50 }
                ]
            },
        ];
        this.taskSettings = {
            id: 'TaskID',
            name: 'TaskName',
            startDate: 'StartDate',
            duration: 'Duration',
            progress: 'Progress',
            dependency: 'Predecessor',
            child: 'subtasks'
        };
        this.editSettings = {
            allowTaskbarEditing: true
        };
    }
    public load() {
        let ganttObj: any = (((document as any).getElementById('ganttDefault'))).ej2_instances[0];
        ganttObj.isAdaptive = true;  // Forcing desktop layout to change as mobile layout
    };
}
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));

Note: In mobile device, you cannot create dependency other than FS by taskbar editing. By using cell/dialog editing, you can add all type of dependencies.

Taskbar editing tooltip

The taskbar editing tooltip can be customized using the tooltipSettings.editing property. The following code example shows how to customize the taskbar editing tooltip in Gantt.

import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { GanttModule } from '@syncfusion/ej2-angular-gantt'
import { EditService } from '@syncfusion/ej2-angular-gantt'




import { Component, ViewEncapsulation, OnInit } from '@angular/core';
import { Gantt } from '@syncfusion/ej2-gantt';
import { editingData } from './data';
import { EditSettingsModel } from '@syncfusion/ej2-angular-gantt';
@Component({
imports: [
         GanttModule
    ],

providers: [EditService],
standalone: true,
    selector: 'app-root',
    template: `<ejs-gantt id="ganttDefault" height="430px" [dataSource]="data" [taskFields]="taskSettings"  [columns]="columns" [editSettings]="editSettings" [tooltipSettings]="tooltipSettings">
       <ng-template #tooltipSettingsEditing let-data>
        <div> <ng-container>Duration : </ng-container> </div>
       </ng-template></ejs-gantt>`,
    encapsulation: ViewEncapsulation.None
})
export class AppComponent{

    public data?: object[];
    public taskSettings?: object;
    public tooltipSettings?: object;
    public editSettings?: EditSettingsModel;
columns: any;
    public ngOnInit(): void {
        this.data = editingData;
        this.taskSettings = {
                id: 'TaskID',
                name: 'TaskName',
                startDate: 'StartDate',
                duration: 'Duration',
                baselineStartDate:"BaselineStartDate",
                baselineEndDate:"BaselineEndDate",
                progress: 'Progress',
                dependency: 'Predecessor',
                child: 'subtasks'
        };
        this.editSettings = {
            allowEditing:true,
            allowTaskbarEditing:true
            },
        this.tooltipSettings = {
                showTooltip: true
        };

    }
}
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));