import React from 'react';
import TreeList, { RemoteOperations, Column, SearchPanel, HeaderFilter, Editing, RequiredRule, Lookup } from 'devextreme-react/tree-list';
import AspNetData from 'devextreme-aspnet-data-nojquery';
const url = 'https://js.devexpress.com/Demos/Mvc/api/TreeListTasks';
const tasksData = AspNetData.createStore({
key: 'Task_ID',
loadUrl: `${url}/Tasks`,
insertUrl: `${url}/InsertTask`,
updateUrl: `${url}/UpdateTask`,
deleteUrl: `${url}/DeleteTask`,
onBeforeSend: function(method, ajaxOptions) {
ajaxOptions.xhrFields = { withCredentials: true };
}
});
const employeesData = AspNetData.createStore({
key: 'ID',
loadUrl: `${url}/TaskEmployees`
});
const statusesData = [
'Not Started',
'Need Assistance',
'In Progress',
'Deferred',
'Completed'
];
class App extends React.Component {
render() {
return (
<TreeList
id="tree-list"
dataSource={tasksData}
keyExpr="Task_ID"
parentIdExpr="Task_Parent_ID"
hasItemsExpr="Has_Items"
defaultExpandedRowKeys={[1, 2]}
showRowLines={true}
showBorders={true}
columnAutoWidth={true}
wordWrapEnabled={true}
onInitNewRow={initNewRow}>
<RemoteOperations filtering={true} sorting={true} grouping={true} />
<SearchPanel visible={true} />
<HeaderFilter visible={true} />
<Editing
mode="row"
allowAdding={true}
allowUpdating={true}
allowDeleting={true} />
<Column dataField="Task_Subject" minWidth={250}>
<RequiredRule />
</Column>
<Column dataField="Task_Assigned_Employee_ID" caption="Assigned" minWidth={120}>
<Lookup dataSource={employeesData} valueExpr="ID" displayExpr="Name" />
<RequiredRule />
</Column>
<Column dataField="Task_Status" caption="Status" minWidth={120}>
<Lookup dataSource={statusesData} />
</Column>
<Column dataField="Task_Start_Date" caption="Start Date" dataType="date" />
<Column dataField="Task_Due_Date" caption="Due Date" dataType="date" />
</TreeList>
);
}
}
function initNewRow(e) {
e.data.Task_Status = 'Not Started';
e.data.Task_Start_Date = new Date();
e.data.Task_Due_Date = new Date();
}
export default App;
import React from 'react';
import ReactDOM from 'react-dom';
import App from './App.js';
ReactDOM.render(
<App />,
document.getElementById('app')
);
<!DOCTYPE html>
<html>
<head>
<title>DevExtreme Demo</title>
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/20.2.6/css/dx.common.css" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/20.2.6/css/dx.light.css" />
<link rel="stylesheet" type="text/css" href="styles.css" />
<script src="https://unpkg.com/core-js@2.4.1/client/shim.min.js"></script>
<script src="https://unpkg.com/systemjs@0.21.3/dist/system.js"></script>
<script type="text/javascript" src="config.js"></script>
<script type="text/javascript">
System.import('./index.js');
</script>
</head>
<body class="dx-viewport">
<div class="demo-container">
<div id="app"></div>
</div>
</body>
</html>
#tree-list {
max-height: 640px;
}
System.config({
transpiler: 'plugin-babel',
meta: {
'devextreme/localization.js': {
"esModule": true
},
'devextreme-aspnet-data-nojquery': {
'esModule': true
},
},
paths: {
'npm:': 'https://unpkg.com/'
},
defaultExtension: 'js',
map: {
'react': 'npm:react@16.14.0/umd/react.development.js',
'react-dom': 'npm:react-dom@16.14.0/umd/react-dom.development.js',
'prop-types': 'npm:prop-types@15.7.2/prop-types.js',
'devextreme-aspnet-data-nojquery': 'npm:devextreme-aspnet-data-nojquery@2.7.1/index.js',
'rrule': 'npm:rrule@2.6.6/dist/es5/rrule.js',
'luxon': 'npm:luxon@1.26.0/build/global/luxon.min.js',
'es6-object-assign': 'npm:es6-object-assign@1.1.0',
'devextreme': 'npm:devextreme@20.2.6',
'devextreme-react': 'npm:devextreme-react@20.2.6',
'jszip': 'npm:jszip@3.6.0/dist/jszip.min.js',
'devextreme-quill': 'npm:devextreme-quill@0.10.3/dist/dx-quill.min.js',
'devexpress-diagram': 'npm:devexpress-diagram@2.0.18/dist/dx-diagram.js',
'devexpress-gantt': 'npm:devexpress-gantt@2.0.24/dist/dx-gantt.js',
'preact': 'npm:preact@10.5.13/dist/preact.js',
'preact/hooks': 'npm:preact@10.5.13/hooks/dist/hooks.js',
// SystemJS plugins
'plugin-babel': 'npm:systemjs-plugin-babel@0.0.25/plugin-babel.js',
'systemjs-babel-build': 'npm:systemjs-plugin-babel@0.0.25/systemjs-babel-browser.js'
},
packages: {
'devextreme': {
defaultExtension: 'js'
},
'devextreme-react': {
main: 'index.js'
},
'devextreme/events/utils': {
main: 'index'
},
'devextreme/events': {
main: 'index'
},
'es6-object-assign': {
main: './index.js',
defaultExtension: 'js'
}
},
babelOptions: {
sourceMaps: false,
stage0: true,
react: true
}
});