Column resizing in Vue Treegrid component

16 Mar 20237 minutes to read

Column width can be resized by clicking and dragging the right edge of the column header. While dragging, the width of the respective column will be resized immediately. Each column can be auto resized by double-clicking the right edge of the column header to fit the width of that column based on the widest cell content. To enable column resize, set the allowResizing property to true.

To use the column resize, inject Resize module in the treegrid.

app.vue

<template>
<div id="app">
        <ejs-treegrid :dataSource="data" childMapping='subtasks' :treeColumnIndex='1' :allowResizing='true' height='315px'>
            <e-columns>
                <e-column field='taskID' headerText='Task ID' width=90 textAlign='Right'></e-column>
                <e-column field='taskName' headerText='Task Name' width=180></e-column>
                <e-column field='startDate' headerText='Start Date' width=90 format="yMd" textAlign='Right'></e-column>
                <e-column field='duration' headerText='Duration' width=80 textAlign='Right'></e-column>
            </e-columns>
        </ejs-treegrid>
</div>
</template>
<script>
import Vue from "vue";
import { TreeGridPlugin, Resize } from "@syncfusion/ej2-vue-treegrid";
import { sampleData } from "./datasource.js";

Vue.use(TreeGridPlugin);

export default {
  data() {
    return {
      data: sampleData,
    };
  },
   provide: {
      treegrid: [ Resize ]
    },
}
</script>

• You can disable resizing for a particular column by setting the columns.allowResizing to false.
• In RTL mode, you can click and drag the left edge of the header cell to resize the column.

Min and max width

Column resize can be restricted between minimum and maximum width by defining the columns->minWidth and columns->maxWidth.

In the following sample, minimum and maximum width are defined for Duration, and Task Name columns.

app.vue

<template>
<div id="app">
        <ejs-treegrid :dataSource="data" childMapping='subtasks' :treeColumnIndex='1' :allowResizing='true' height='315px'>
            <e-columns>
                <e-column field='taskID' headerText='Task ID' width=90 textAlign='Right'></e-column>
                <e-column field='taskName' headerText='Task Name'minWidth= 170 width=180 maxWidth=250></e-column>
                <e-column field='duration' headerText='Duration' minWidth= 50 width=80 maxWidth=150 textAlign='Right'></e-column>
                <e-column field='progress' headerText='Progress'  width=80 textAlign='Right'></e-column>
            </e-columns>
        </ejs-treegrid>
</div>
</template>
<script>
import Vue from "vue";
import { TreeGridPlugin, Resize } from "@syncfusion/ej2-vue-treegrid";
import { sampleData } from "./datasource.js";

Vue.use(TreeGridPlugin);

export default {
  data() {
    return {
      data: sampleData,
    };
  },
   provide: {
      treegrid: [ Resize ]
    },
}
</script>

Resize stacked column

Stacked columns can be resized by clicking and dragging the right edge of the stacked column header. While dragging, the width of the respective child columns will be resized at the same time. You can disable resize for particular stacked column by setting allowResizing as false to its columns.

app.vue

<template>
<div id="app">
        <ejs-treegrid :dataSource="data" childMapping='subtasks' :treeColumnIndex='1' :allowResizing='true' height='260px'>
             <e-columns>
                <e-column headerText='Order Details' :columns='orderColumns'></e-column>
                <e-column headerText='Shipment Details' :columns='shipColumns'></e-column>
            </e-columns>
        </ejs-treegrid>
</div>
</template>
<script>
import Vue from "vue";
import { TreeGridPlugin, Resize } from "@syncfusion/ej2-vue-treegrid";
import { stackedData } from "./datasource.js";

Vue.use(TreeGridPlugin);

export default {
  data() {
    return {
      data: stackedData,
        orderColumns : [
            { field: 'orderID', headerText: 'Order ID', textAlign: 'Right', width: 90 },
            { field: 'orderName', headerText: 'Order Name', textAlign: 'Left', width: 170 },
        ],
        shipColumns : [
            { field: 'shipMentCategory', headerText: 'Shipment Category', textAlign: 'Left', width: 90 },
            { field: 'shippedDate', headerText: 'Shipped Date', textAlign: 'Right', format: 'yMd', width: 90 }
        ]
    };
  },
   provide: {
      treegrid: [ Resize ]
    },
}
</script>