Rows in Angular Gantt component

4 Jan 202424 minutes to read

Row represents a task information from the data source, and it is possible to perform the following actions in Gantt rows.

Row height

It is possible to change the height of the row in Gantt by setting row height in pixels to the rowHeight property. The following code example explains how to change the row height in the Gantt at load time.

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

@Component({
    selector: 'app-root',
    template:
       `<ejs-gantt id="ganttDefault" height="430px" [dataSource]="data" [taskFields]="taskSettings" [rowHeight]="60"></ejs-gantt>`,
    encapsulation: ViewEncapsulation.None
})
export class AppComponent{
    // Data for Gantt
    public data?: object[];
    public taskSettings?: 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',
            endDate: 'EndDate',
            duration: 'Duration',
            progress: 'Progress',
            child: 'subtasks'
        };
    }
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { GanttModule } from '@syncfusion/ej2-angular-gantt';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, GanttModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

import 'zone.js';
enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);

Expand/Collapse Row

In Gantt parent tasks are expanded/collapsed by using expand/collapse icons, expand all/collapse all toolbar items and by using public methods. By default all tasks in Gantt was rendered in expanded state but you can change this status in Gantt.

Collapse all tasks at Gantt load

All tasks available in Gantt was rendered in collapsed state by setting collapseAllParentTasks property as true. The following code example shows how to use collapseAllParentTasks property.

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

@Component({
    selector: 'app-root',
    template:
       `<ejs-gantt id="ganttDefault" height="430px" [dataSource]="data" [taskFields]="taskSettings" [collapseAllParentTasks]='true'></ejs-gantt>`,
    encapsulation: ViewEncapsulation.None
})
export class AppComponent{
    // Data for Gantt
    public data?: object[];
    public taskSettings?: 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',
            endDate: 'EndDate',
            duration: 'Duration',
            progress: 'Progress',
            child: 'subtasks'
        };
    }
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { GanttModule } from '@syncfusion/ej2-angular-gantt';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, GanttModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

import 'zone.js';
enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);

Define expand/collapse status of tasks

In Gantt, you can render some tasks in collapsed state and some tasks in expanded state, this can done by defining expand status of the task in data source. This value was mapped to Gantt component by using expandState property. The following code example shows how to use this property.

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

@Component({
    selector: 'app-root',
    template:
       `<ejs-gantt id="ganttDefault" height="430px" [dataSource]="data" [taskFields]="taskSettings"></ejs-gantt>`,
    encapsulation: ViewEncapsulation.None
})
export class AppComponent{
    // Data for Gantt
    public data?: object[];
    public taskSettings?: object;
    public ngOnInit(): void {
        this.data =  [
            {
                TaskID: 1,
                TaskName: 'Project Initiation',
                StartDate: new Date('04/02/2019'),
                EndDate: new Date('04/21/2019'),
                isExpand:true,
                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'),
                isExpand:false,
                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',
            expandState:'isExpand',
            child: 'subtasks'
        };
    }
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { GanttModule } from '@syncfusion/ej2-angular-gantt';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, GanttModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

import 'zone.js';
enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);

Customize expand/collapse action

On expand action expanding and expanded event will be triggered with current expanding row’s information. Similarly on collapse action collapsing and collapsed event will be triggered. Using this events and it’s arguments you can customize the expand/collapse action. The following code example shows how to prevent the particular row from expand/collapse action using expanding and collapsing event.

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

@Component({
    selector: 'app-root',
    template:
       `<ejs-gantt id="ganttDefault" height="430px" [dataSource]="data" [taskFields]="taskSettings" (collapsing)="collapsing($event)" (expanding)="expanding($event)"></ejs-gantt>`,
    encapsulation: ViewEncapsulation.None
})
export class AppComponent{
    // Data for Gantt
    public data?: object[];
    public taskSettings?: 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',
            endDate: 'EndDate',
            duration: 'Duration',
            progress: 'Progress',
            child: 'subtasks'
        };
    }
    public collapsing(args: any){
        if(args.data.TaskID==1)
        args.cancel=true;
        };
    public expanding(args: any){
        if(args.data.TaskID==5)
        args.cancel=true;
        };
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { GanttModule } from '@syncfusion/ej2-angular-gantt';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, GanttModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

import 'zone.js';
enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);

Customize rows and cells

While rendering the TreeGrid part in Gantt, the rowDataBound and queryCellInfo events trigger for every row and cell. Using these events, you can customize the rows and cells. The following code example shows how to customize the cell and row elements using these events.

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

@Component({
    selector: 'app-root',
    template:
       `<ejs-gantt id="ganttDefault" height="430px" [dataSource]="data" [taskFields]="taskFields" [columns] = "columns" [splitterSettings] = "splitterSettings" (rowDataBound) = "rowDataBound($event)"  (queryCellInfo) = "queryCellInfo($event)"></ejs-gantt>`,
    encapsulation: ViewEncapsulation.None
})
export class AppComponent{
    // Data for Gantt
    public data?: object[];
    public taskFields?: object;
    public columns?: object[];
    public splitterSettings?: object;

    public ngOnInit(): void {
        this.data = editingData;
        this.taskFields = {
            id: 'TaskID',
            name: 'TaskName',
            startDate: 'StartDate',
            endDate: 'EndDate',
            duration: 'Duration',
            progress: 'Progress',
            dependency: 'Predecessor',
            child: 'subtasks'
        };
        this.columns = [
            { field: 'TaskID', headerText: 'Task ID', textAlign: 'Left', width: '100' },
            { field: 'TaskName', headerText: 'Task Name', width: '150' },
            { field: 'Progress', headerText: 'Progress', width: '150' },
            { field: 'StartDate', headerText: 'Start Date', width: '150' },
            { field: 'Duration', headerText: 'Duration', width: '150' },
        ];
        this.splitterSettings = {
            columnIndex:3
            };
            }
    public queryCellInfo(args: any) {
        if (args.column.field == "Progress") {
                if (args.data.Progress < 25)
                  args.cell.style.backgroundColor="lightgreen"
               else
                  args.cell.style.backgroundColor="yellow"
            }
    };
    public rowDataBound(args: any) {
        if(args.data.TaskID==4)
        args.row.style.backgroundColor="red"
        };
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { GanttModule } from '@syncfusion/ej2-angular-gantt';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, GanttModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

import 'zone.js';
enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);

Customize rows

You can customize the appearance of a row in grid side, by using the rowDataBound event and in chart side by using queryTaskbarInfo event

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

@Component({
    selector: 'app-root',
    template:
       `<ejs-gantt id="ganttDefault" height="430px" [dataSource]="data" [taskFields]="taskFields" (queryTaskbarInfo) = "queryTaskbarInfo($event)" (rowDataBound) = "rowDataBound($event)"></ejs-gantt>`,
    encapsulation: ViewEncapsulation.None
})
export class AppComponent{
    // Data for Gantt
    public data?: object[];
    public taskFields?: object;
    public ngOnInit(): void {
        this.data = [
        {
            TaskID: 1,
            TaskName: 'Project Initiation',
            StartDate: new Date('04/02/2019'),
            EndDate: new Date('04/21/2019'),
            isParent:true,
            subtasks: [
                { TaskID: 2, TaskName: 'Identify Site location', StartDate: new Date('04/02/2019'), Duration: 0, Progress: 50,isParent:false },
                { TaskID: 3, TaskName: 'Perform Soil test', StartDate: new Date('04/02/2019'), Duration: 4, Progress: 70, resources: [2, 3, 5],isParent:false   },
                { TaskID: 4, TaskName: 'Soil test approval', StartDate: new Date('04/02/2019'), Duration: 4,Predecessor:"2FS", Progress: 80,isParent:false  },
            ]
        },
        {
            TaskID: 5,
            TaskName: 'Project Estimation',
            StartDate: new Date('04/02/2019'),
            EndDate: new Date('04/21/2019'),
            isParent:true,
            subtasks: [
                { TaskID: 6, TaskName: 'Develop floor plan for estimation', StartDate: new Date('04/04/2019'), Duration: 3, Progress: 50, resources: [4],isParent:false  },
                { TaskID: 7, TaskName: 'List materials', StartDate: new Date('04/04/2019'), Duration: 3, Progress: 70, resources: [4, 8],isParent:false  },
                { TaskID: 8, TaskName: 'Estimation approval', StartDate: new Date('04/04/2019'), Duration: 0,Predecessor:"6SS", Progress: 50, resources: [12, 5],isParent:false  }
            ]
        },
    ];
        this.taskFields = {
            id: 'TaskID',
            name: 'TaskName',
            startDate: 'StartDate',
            duration: 'Duration',
            progress: 'Progress',
            dependency: 'Predecessor',
            child: 'subtasks'
        };
    }
    public queryTaskbarInfo(args: any) {
                if (args.data['TaskID'] == 4) {
                args.rowElement.style.background = 'cyan';
  }
}
public rowDataBound(args: any) {
  if (args.data['TaskID'] == 4) {
    args.row.style.background = 'cyan';
  }
}
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { GanttModule } from '@syncfusion/ej2-angular-gantt';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, GanttModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

import 'zone.js';
enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);

Styling alternate rows

You can change the background colour of alternative rows in Gantt chart, by overriding the class as shown below.

.e-altrow, tr.e-chart-row:nth-child(even)  {
    background-color: #f2f2f2;
}
import { Component, ViewEncapsulation, OnInit } from '@angular/core';
import { Gantt } from '@syncfusion/ej2-gantt';

@Component({
    selector: 'app-root',
    template:
       `<ejs-gantt id="ganttDefault" height="430px" [dataSource]="data" [taskFields]="taskSettings"></ejs-gantt>`,
    encapsulation: ViewEncapsulation.None
})
export class AppComponent{
    // Data for Gantt
    public data?: object[];
    public taskSettings?: 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',
            endDate: 'EndDate',
            duration: 'Duration',
            progress: 'Progress',
            child: 'subtasks'
        };
    }
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { GanttModule } from '@syncfusion/ej2-angular-gantt';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, GanttModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

import 'zone.js';
enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);

Row spanning

Gantt chart has an option to span row cells. You can achieve this using rowSpan attribute to span cells in the QueryCellInfo event.

In the following demo, Soil test approval cell is spanned to two rows in the TaskName column.

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

@Component({
    selector: 'app-root',
    template:
       `<ejs-gantt id="ganttDefault" height="430px" [dataSource]="data" [taskFields]="taskSettings" (queryCellInfo)= "queryCellInfo($event)"></ejs-gantt>`,
    encapsulation: ViewEncapsulation.None
})
export class AppComponent{
    // Data for Gantt
    public data?: object[];
    public taskSettings?: 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',
            endDate: 'EndDate',
            duration: 'Duration',
            progress: 'Progress',
            child: 'subtasks'
        };
    }
    public queryCellInfo(args: any) {
        if (args.data['TaskID'] == 4 && args.column.field === 'TaskName') {
        args.rowSpan = 2;
    }
}
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { GanttModule } from '@syncfusion/ej2-angular-gantt';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, GanttModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

import 'zone.js';
enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);

Clip mode

The clip mode provides options to display its overflow cell content and it can be defined by the columns.clipMode property.

The following are three types of clipMode:

  • Clip: Truncates the cell content when it overflows its area.
  • Ellipsis: Displays ellipsis when content of the cell overflows its area.
  • EllipsisWithTooltip: Displays ellipsis when content of the cell overflows its area; it displays the tooltip content when hover over ellipsis.

NOTE
By default, all the column’s clipMode property is defined as EllipsisWithTooltip.

Cell tooltip

You can enable or disable the Grid cell tooltip using the columns.clipMode property.

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

@Component({
    selector: 'app-root',
    template:
       `<ejs-gantt id="ganttDefault" height="430px" [dataSource]="data" [taskFields]="taskSettings"  [columns]="columns"></ejs-gantt>`,
    encapsulation: ViewEncapsulation.None
})
export class AppComponent{
    // Data for Gantt
    public data?: object[];
    public taskSettings?: object;
    public columns?: object[];

    public ngOnInit(): void {
        this.data = editingData;
        this.taskSettings = {
            id: 'TaskID',
            name: 'TaskName',
            startDate: 'StartDate',
            endDate: 'EndDate',
            duration: 'Duration',
            progress: 'Progress',
            child: 'subtasks'
        };
        this.columns = [
            { field: 'TaskID', headerText: 'Task ID', textAlign: 'Left', width: '100' },
            { field: 'TaskName', headerText: 'Task Name', width: '150', clipMode: 'EllipsisWithTooltip' },
            { field: 'StartDate', headerText: 'Start Date', width: '150' },
            { field: 'Duration', headerText: 'Duration', width: '150',clipMode: 'Clip' },
            { field: 'Progress', headerText: 'Progress', width: '150' },
        ];
    }
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { GanttModule } from '@syncfusion/ej2-angular-gantt';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, GanttModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

import 'zone.js';
enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);