Searching in Vue Treegrid component

16 Mar 202310 minutes to read

You can search records in a TreeGrid, by using the search method with search key as a parameter. This also provides an option to integrate search text box in treegrid’s toolbar by adding search item to the toolbar.

To search records, inject the Filter module in the treegrid.

app.vue

<template>
<div id="app">
        <ejs-treegrid :dataSource='data' childMapping='subtasks' :treeColumnIndex='1' :toolbar='toolbarOptions' height='270px'>
            <e-columns>
                <e-column field='taskID' headerText='Task ID' width='90' textAlign='Right'></e-column>
                <e-column field='taskName' headerText='Task Name' width='160'></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, Filter, Toolbar } from "@syncfusion/ej2-vue-treegrid";
import { sampleData } from "./datasource.js";

Vue.use(TreeGridPlugin);

export default {
  data ()  {
    return {
      data: sampleData,
      toolbarOptions: ['Search']
    };
  },
  provide: {
      treegrid: [ Filter, Toolbar ]
    }
}
</script>

Initial search

To apply search at initial rendering, set the fields, operator, key, and ignoreCase in the searchSettings.

app.vue

<template>
<div id="app">
        <ejs-treegrid :dataSource='data' childMapping='subtasks' :treeColumnIndex='1' :toolbar='toolbarOptions' height='270px' :searchSettings='searchOptions' >
            <e-columns>
                <e-column field='taskID' headerText='Task ID' width='90' textAlign='Right'></e-column>
                <e-column field='taskName' headerText='Task Name' width='160'></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, Filter, Toolbar } from "@syncfusion/ej2-vue-treegrid";
import { sampleData } from "./datasource.js";

Vue.use(TreeGridPlugin);

export default {
  data ()  {
    return {
        data: sampleData,
        toolbarOptions: ['Search'],
        searchOptions: { fields: ['taskName'], operator: 'contains', key: 'plan', ignoreCase: true }
    };
  },
  provide: {
      treegrid: [ Filter, Toolbar ]
    }
}
</script>

By default, treegrid searches all the bound column values. To customize this behavior define the searchSettings.fields property.

Search operators

The search operator can be defined in the searchSettings.operator property to configure specific searching.

The following operators are supported in searching:

Operator	Description
startsWith	Checks whether a value begins with the specified value.
endsWith	Checks whether a value ends with the specified value.
contains	Checks whether a value contains the specified value.
equal	Checks whether a value is equal to the specified value.
notEqual	Checks for values not equal to the specified value.

By default, the searchSettings.operator value is contains.

Search by external button

To search treegrid records from an external button, invoke the search method.

app.vue

<template>
<div id="app">
<div class="e-float-input" style="width: 200px; display: inline-block;">
                <input type="text" class="searchtext"/>
                <span class="e-float-line"></span>
                <label class="e-float-text">Search text</label>
            </div>
        <ejs-button id='search' @click.native='search'>Search</ejs-button>
        <ejs-treegrid ref='treegrid' :dataSource='data' childMapping='subtasks' :treeColumnIndex='1' height='220px'>
            <e-columns>
                <e-column field='taskID' headerText='Task ID' width='90' textAlign='Right'></e-column>
                <e-column field='taskName' headerText='Task Name' width='160'></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, Filter } from "@syncfusion/ej2-vue-treegrid";
import { ButtonPlugin } from '@syncfusion/ej2-vue-buttons';
import { sampleData } from "./datasource.js";

Vue.use(TreeGridPlugin);
Vue.use(ButtonPlugin);

export default {
  data ()  {
    return {
      data: sampleData,
    };
  },
    provide: {
      treegrid: [ Filter ]
    },
    methods:{
        search: function() {
        let searchText = document.getElementsByClassName('searchtext')[0].value;
        this.$refs.treegrid.search(searchText);
    }
}
}
</script>

Search specific columns

By default, treegrid searches all visible columns. You can search specific columns by defining the specific column’s field names in the searchSettings.fields property.

app.vue

<template>
<div id="app">
        <ejs-treegrid :dataSource='data' childMapping='subtasks' :treeColumnIndex='1' :toolbar='toolbarOptions' height='270px' :searchSettings='searchOptions'>
            <e-columns>
                <e-column field='taskID' headerText='Task ID' width='90' textAlign='Right'></e-column>
                <e-column field='taskName' headerText='Task Name' width='160'></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, Filter, Toolbar } from "@syncfusion/ej2-vue-treegrid";
import { sampleData } from "./datasource.js";

Vue.use(TreeGridPlugin);

export default {
  data ()  {
    return {
      data: sampleData,
      toolbarOptions: ['Search'],
      searchOptions: {fields: ['taskName', 'duration']}
    };
  },
  provide: {
      treegrid: [ Filter, Toolbar ]
    }
}
</script>