Columns in Vue Gantt component

9 Aug 202319 minutes to read

The column displays information from a bound data source, and you can edit the values of column to update the task details through TreeGrid. The operations such as sorting, filtering, and searching can be performed based on column definitions. To display a Gantt column, the field property should be mapped from the data source to the column.

If the column field is not specified in the dataSource, the column values will be empty.

The treeColumnIndex property is used to define the expander column in the Gantt component to expand and collapse the child rows.

To learn about Gantt Chart Customize Column Data, you can check on this video:

Defining columns

Using the columns property, you can define the columns in Gantt. If the columns are not defined, then the default columns will be rendered based on the mapped data source fields in the taskFields property. Refer to the following code example for defining the columns in Gantt along with their widths.

<template>
     <div>
        <ejs-gantt ref='gantt' id="GanttContainer" :dataSource="data" :taskFields = "taskFields" :height = "height" :columns = "columns"  :splitterSettings = "splitterSettings"></ejs-gantt>
    </div>
</template>
<script>
import Vue from "vue";
import { GanttPlugin } from "@syncfusion/ej2-vue-gantt";
import { editingData  } from './data-source.js';
Vue.use(GanttPlugin);
export default {
  data: function() {
      return{
            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 }
            ]
        },
    ],
            taskFields: {
             id: 'TaskID',
            name: 'TaskName',
            startDate: 'StartDate',
            duration: 'Duration',
            progress: 'Progress',
            child: 'subtasks',
            },
        splitterSettings:{
            columnIndex:2
            },
            height:'450px',
            columns: [
                { field: 'TaskID', width: '150' },
                { field: 'TaskName', width: '250' }
        ]
      };
  },
};
</script>

Custom column header

The column header text can be defined using the headerText property, and you can customize the column headers using the headerTemplate property.

<template>
  <div>
    <ejs-gantt ref='gantt' id="GanttContainer" :dataSource="data" :taskFields="taskFields" :height="height"
      :splitterSettings="splitterSettings">
      <e-columns>
        <e-column field='TaskName' :headerTemplate='projectName' width=150></e-column>
        <e-column field='StartDate' :headerTemplate='dateTemplate' width=150></e-column>
        <e-column field='Duration' :headerTemplate='durationTemplate' width=150></e-column>
        <e-column field='Progress' :headerTemplate='progressTemplate' width=150></e-column>
      </e-columns>
      <template v-slot:projectName="{data}">
        <div>
          <img src="taskname.png" width="20" height="20" class="e-image" />Task Name
        </div>
      </template>
      <template v-slot:dateTemplate="{data}">
        <div>
          <img src="startdate.png" width="20" height="20" class="e-image" />Start Date
        </div>
      </template>
      <template v-slot:durationTemplate="{data}">
        <div>
          <img src="duration.png" width="20" height="20" class="e-image" />Duration
        </div>
      </template>
      <template v-slot:progressTemplate="{data}">
        <div>
          <img src="progress.png" width="20" height="20" class="e-image" /> Progress
        </div>
      </template>
    </ejs-gantt>
  </div>
</template>
<script>
import Vue from "vue";
import { GanttPlugin } from "@syncfusion/ej2-vue-gantt";
import { editingData  } from './data-source.js';
Vue.use(GanttPlugin);
export default {
  data: function() {
      return{
         data: editingData,
      taskFields: {
            id: 'TaskID',
            name: 'TaskName',
            startDate: 'StartDate',
            duration: 'Duration',
            progress: 'Progress',
            child: 'subtasks',
        },
        height:'450px',
        splitterSettings:{
            columnIndex:4
            },
            columns: [
            { field: 'TaskName', headerTemplate:  '#projectName', width: '150' },
            { field: 'StartDate', headerTemplate: '#dateTemplate', width: '150' },
            { field: 'Duration',headerTemplate: '#durationTemplate', headerText: 'Duration', width: '150'},
            { field: 'Progress',headerTemplate: '#progressTemplate',  headerText: 'Progress', width: '150' },
        ],
      };
  },
};
</script>

Format

To format the cell values based on a specific culture, use the columns.format property. The Gantt component uses the Internationalization library to format number and date values.

<template>
     <div>
        <ejs-gantt ref='gantt' id="GanttContainer" :dataSource="data" :taskFields = "taskFields" :height = "height" :columns = "columns" :rowHeight = "rowHeight" :splitterSettings = "splitterSettings"></ejs-gantt>
    </div>
</template>
<script>
import Vue from "vue";
import { GanttPlugin } from "@syncfusion/ej2-vue-gantt";
import { editingData  } from './data-source.js';
Vue.use(GanttPlugin);
export default {
  data: function() {
      return{
            data: editingData,
            taskFields: {
             id: 'TaskID',
            name: 'TaskName',
            startDate: 'StartDate',
            duration: 'Duration',
            progress: 'Progress',
            child: 'subtasks',
            },
            rowHeight:50,
        splitterSettings:{
            columnIndex:3
            },
            height:'450px',
            columns: [
                { field: 'TaskID', headerText: 'Task ID', textAlign: 'Left', width: '100' },
            { field: 'Progress', headerText: 'Progress', width: '150',format: 'C' },
            { field: 'TaskName', headerText: 'Task Name', width: '150' },
            { field: 'StartDate', headerText: 'Start Date', width: '150' },
            { field: 'Duration', headerText: 'Duration', width: '150' }
        ]
      };
  },
};
</script>

By default, the number and date values are formatted in en-US culture.

Number formatting

The number or integer values can be formatted using the following format strings.

Format Description Remarks
N Denotes numeric type. The numeric format is followed by an integer value like N2 or N3, which denotes the number of precisions to be allowed.
C Denotes currency type. The currency format is followed by an integer value like C2 or C3, which denotes the number of precisions to be allowed.
P Denotes percentage type The percentage format expects the input value to be in the range of 0 to 100. For example, the cell value 0.2 is formatted as 20%. The percentage format is followed by an integer value like P2, P3, which denotes the number of precisions to be allowed.

Date formatting

You can format date values either using built-in date format string or custom format string.

For the built-in date format, you can specify the columns.format property as string (example: yMd).

You can also use the custom format string to format the date values. Some of the custom formats and the formatted date values are given in the following table.

Format Formatted value
{ type:’date’, format:’dd/MM/yyyy’ } 04/07/1996
{ type:’date’, format:’dd.MM.yyyy’ } 04.07.1996
{ type:’date’, skeleton:’short’ } 7/4/96
{ type: ‘dateTime’, format: ‘dd/MM/yyyy hh:mm a’ } 04/07/1996 12:00 AM
{ type: ‘dateTime’, format: ‘MM/dd/yyyy hh:mm:ss a’ } 07/04/1996 12:00:00 AM 
<template>
     <div>
        <ejs-gantt ref='gantt' id="GanttContainer" :dataSource="data" :taskFields = "taskFields" :height = "height" :columns = "columns" :rowHeight = "rowHeight" :splitterSettings = "splitterSettings"></ejs-gantt>
    </div>
</template>
<script>
import Vue from "vue";
import { GanttPlugin } from "@syncfusion/ej2-vue-gantt";
import { editingData  } from './data-source.js';
Vue.use(GanttPlugin);
export default {
  data: function() {
      return{
            data: editingData,
            taskFields: {
             id: 'TaskID',
            name: 'TaskName',
            startDate: 'StartDate',
            duration: 'Duration',
            progress: 'Progress',
            child: 'subtasks',
            },
            rowHeight:50,
        splitterSettings:{
            columnIndex:3
            },
            height:'450px',
            columns: [
                { field: 'TaskID', headerText: 'Task ID', textAlign: 'Left', width: '100' },
            { field: 'TaskName', headerText: 'Task Name', width: '150' },
            { field: 'StartDate', headerText: 'Start Date', width: '150', format: { format: 'dd/MM/yyyy', type: 'date' } },
            { field: 'Duration', headerText: 'Duration', width: '150' },
            { field: 'Progress', headerText: 'Progress', width: '150',format: 'C' },
        ]
      };
  },
};
</script>