Search results

Provide custom data source and enabling filtering to DropDownList in JavaScript TreeGrid control

You can provide data source to the DropDownList by using the params of columns.edit property.

While setting new data source using edit params, you must specify a new query property for the DropDownList as follows,

      edit: {
        params: {
          actionComplete: () => false,
          allowFiltering: true,
          dataSource: new DataManager(priorityData),
          fields: { text: "priorityName", value: "priorityName" },
          query: new Query()
        }
      }

You can also enable filtering for the DropDownList by passing the allowFiltering as true to the edit params.

In the below demo, DropDownList is rendered with custom dataSource for the Priority column and enabled filtering to search DropDownList items.

Source
Preview
index.ts
index.css
index.html
import { TreeGrid, Edit, Toolbar } from "@syncfusion/ej2-treegrid";
import { projectData } from './datasource.ts';
import { Query, DataManager } from "@syncfusion/ej2-data";
import { IEditCell } from "@syncfusion/ej2-grids";

TreeGrid.Inject(Edit, Toolbar);
let priorityData: object[] = [
  { priorityName: "Normal", priorityId: "1" },
  { priorityName: "High", priorityId: "2" },
  { priorityName: "Low", priorityId: "3" },
  { priorityName: "Critical", priorityId: "4" },
  { priorityName: "Breaker", priorityId: "5" }
];

let treegrid: TreeGrid = new TreeGrid({
  dataSource: projectData,
  idMapping: "TaskID",
  parentIdMapping: "parentID",
  treeColumnIndex: 1,
  editSettings: {
    allowEditing: true,
    allowAdding: true,
    allowDeleting: true,
    mode: "Row"
  },
  toolbar: ["Add", "Edit", "Delete", "Update", "Cancel"],
  columns: [
    { field: "TaskID", headerText: "Task ID", isPrimaryKey: true, textAlign: "Right", width: 70 },
    { field: "TaskName", headerText: "Task Name", width: 100 },
    { field: "StartDate", headerText: "Start Date", textAlign: "Right", width: 100, editType: "datepickeredit",
      format: { skeleton: "yMd", type: "date" } },
    { field: "EndDate", headerText: "End Date", textAlign: "Right", width: 100, editType: "datepickeredit",
      format: { skeleton: "yMd", type: "date" } },
    { field: "Duration", headerText: "Duration", textAlign: "Right", width: 90 },
    { field: "Priority", headerText: "Priority", width: 90, editType: "dropdownedit",
      edit: {
        params: {
          actionComplete: () => false,
          allowFiltering: true,
          dataSource: new DataManager(priorityData),
          fields: { text: "priorityName", value: "priorityName" },
          query: new Query()
        }
      }
    }
  ]
});
treegrid.appendTo("#TreeGrid");
#container {
    visibility: hidden;
}

#loader {
  color: #008cff;
  font-family: 'Helvetica Neue','calibiri';
  font-size: 14px;
  height: 40px;
  left: 45%;
  position: absolute;
  top: 45%;
  width: 30%;
}
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Grid</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript Grid Control" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-grids/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-treegrid/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-navigations/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-dropdowns/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-lists/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-inputs/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-calendars/styles/material.css" rel="stylesheet" />
    
    
    
    <link href="//cdn.syncfusion.com/ej2/ej2-splitbuttons/styles/material.css" rel="stylesheet" />
    
    
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>
<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='TreeGrid'></div>        
    </div>
</body>
</html>