import React from 'react';
import DataGrid, {
Paging,
HeaderFilter,
SearchPanel,
Editing,
Column,
Lookup,
RequiredRule } from 'devextreme-react/data-grid';
import { createStore } from 'devextreme-aspnet-data-nojquery';
import { statuses } from './data.js';
import EmployeeDropDownBoxComponent from './EmployeeDropDownBoxComponent.js';
import EmployeeTagBoxComponent from './EmployeeTagBoxComponent.js';
import SelectBox from 'devextreme-react/select-box';
const url = 'https://js.devexpress.com/Demos/Mvc/api/CustomEditors';
const employees = createStore({
key: 'ID',
loadUrl: `${url}/Employees`,
onBeforeSend: function(method, ajaxOptions) {
ajaxOptions.xhrFields = { withCredentials: true };
}
});
const tasks = createStore({
key: 'ID',
loadUrl: `${url}/Tasks`,
updateUrl: `${url}/UpdateTask`,
insertUrl: `${url}/InsertTask`,
onBeforeSend: function(method, ajaxOptions) {
ajaxOptions.xhrFields = { withCredentials: true };
}
});
class App extends React.Component {
constructor(props) {
super(props);
this.statusEditorRender = this.statusEditorRender.bind(this);
}
cellTemplate(container, options) {
var noBreakSpace = '\u00A0',
text = (options.value || []).map(element => {
return options.column.lookup.calculateCellValue(element);
}).join(', ');
container.textContent = text || noBreakSpace;
container.title = text;
}
calculateFilterExpression(filterValue, selectedFilterOperation, target) {
if(target === 'search' && typeof (filterValue) === 'string') {
return [this.dataField, 'contains', filterValue];
}
return function(data) {
return (data.AssignedEmployee || []).indexOf(filterValue) !== -1;
};
}
onValueChanged(cell, e) {
cell.setValue(e.value);
}
statusEditorRender(cell) {
let onValueChanged = this.onValueChanged.bind(this, cell);
return <SelectBox
defaultValue={cell.value}
{...cell.column.lookup}
onValueChanged={onValueChanged}
itemRender={this.itemRender}
/>;
}
itemRender(data) {
let imageSource = `images/icons/status-${ data.id }.svg`;
if(data != null) {
return <div>
<img src={imageSource} className="status-icon middle"></img>
<span className="middle">{data.name}</span>
</div>;
} else {
return <span>(All)</span>;
}
}
onRowInserted(e) {
e.component.navigateToRow(e.key);
}
render() {
return (
<div>
<DataGrid
dataSource={tasks}
showBorders={true}
onRowInserted={this.onRowInserted}
>
<Paging enabled={true} defaultPageSize={15} />
<HeaderFilter visible={true} />
<SearchPanel visible={true} />
<Editing
mode="cell"
allowUpdating={true}
allowAdding={true}
/>
<Column
dataField="Owner"
width={150}
allowSorting={false}
editCellComponent={EmployeeDropDownBoxComponent}
>
<Lookup
dataSource={employees}
displayExpr="FullName"
valueExpr="ID"
/>
<RequiredRule />
</Column>
<Column
dataField="AssignedEmployee"
caption="Assignees"
width={200}
allowSorting={false}
editCellComponent={EmployeeTagBoxComponent}
cellTemplate={this.cellTemplate}
calculateFilterExpression={this.calculateFilterExpression}>
<Lookup
dataSource={employees}
valueExpr="ID"
displayExpr="FullName"
/>
<RequiredRule />
</Column>
<Column dataField="Subject">
<RequiredRule />
</Column>
<Column
dataField="Status"
width={200}
editCellRender={this.statusEditorRender}
>
<Lookup
dataSource={statuses}
displayExpr="name"
valueExpr="id"
/>
<RequiredRule />
</Column>
</DataGrid>
</div>
);
}
}
export default App;
import React from 'react';
import DataGrid, {
Column,
Paging,
Scrolling,
Selection
} from 'devextreme-react/data-grid';
import DropDownBox from 'devextreme-react/drop-down-box';
const dropDownOptions = { width: 500 };
export default class EmployeeDropDownBoxComponent extends React.Component {
constructor(props) {
super(props);
this.state = {
currentValue: props.data.value
};
this.dropDownBoxRef = React.createRef();
this.onSelectionChanged = this.onSelectionChanged.bind(this);
this.contentRender = this.contentRender.bind(this);
}
contentRender() {
return (
<DataGrid
dataSource={this.props.data.column.lookup.dataSource}
remoteOperations={true}
keyExpr="ID"
height={250}
selectedRowKeys={[this.state.currentValue]}
hoverStateEnabled={true}
onSelectionChanged={this.onSelectionChanged}
focusedRowEnabled={true}
defaultFocusedRowKey={this.state.currentValue}
>
<Column dataField="FullName" />
<Column dataField="Title" />
<Column dataField="Department" />
<Paging enabled={true} defaultPageSize={10} />
<Scrolling mode="virtual" />
<Selection mode="single" />
</DataGrid>
);
}
onSelectionChanged(selectionChangedArgs) {
this.setState({ currentValue: selectionChangedArgs.selectedRowKeys[0] });
this.props.data.setValue(this.state.currentValue);
if(selectionChangedArgs.selectedRowKeys.length > 0) {
this.dropDownBoxRef.current.instance.close();
}
}
render() {
return (
<DropDownBox
ref={this.dropDownBoxRef}
dropDownOptions={dropDownOptions}
dataSource={this.props.data.column.lookup.dataSource}
value={this.state.currentValue}
displayExpr="FullName"
valueExpr="ID"
contentRender={this.contentRender}>
</DropDownBox>
);
}
}
import React from 'react';
import TagBox from 'devextreme-react/tag-box';
export default class EmployeeTagBoxComponent extends React.Component {
constructor(props) {
super(props);
this.onValueChanged = this.onValueChanged.bind(this);
this.onSelectionChanged = this.onSelectionChanged.bind(this);
}
onValueChanged(e) {
this.props.data.setValue(e.value);
}
onSelectionChanged() {
this.props.data.component.updateDimensions();
}
render() {
return <TagBox
dataSource={this.props.data.column.lookup.dataSource}
defaultValue={this.props.data.value}
valueExpr="ID"
displayExpr="FullName"
showSelectionControls={true}
maxDisplayedTags={3}
showMultiTagOnly={false}
applyValueMode="useButtons"
searchEnabled={true}
onValueChanged={this.onValueChanged}
onSelectionChanged={this.onSelectionChanged} />;
}
}
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/20.2.4/css/dx.common.css" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/20.2.4/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>
.status-icon {
height: 16px;
width: 16px;
display: inline-block;
margin-right: 8px;
}
.middle {
vertical-align: middle;
}
export const statuses = [{
'id': 1, 'name': 'Not Started'
}, {
'id': 2, 'name': 'In Progress'
}, {
'id': 3, 'name': 'Deferred'
}, {
'id': 4, 'name': 'Need Assistance'
}, {
'id': 5, 'name': 'Completed'
}];
System.config({
transpiler: 'plugin-babel',
meta: {
'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@2.6.1/index.js',
'rrule': 'npm:rrule@2.6.6/dist/es5/rrule.js',
'luxon': 'npm:luxon@1.25.0/build/global/luxon.min.js',
'es6-object-assign': 'npm:es6-object-assign@1.1.0',
'devextreme': 'npm:devextreme@20.2.4',
'devextreme-react': 'npm:devextreme-react@20.2.4',
'jszip': 'npm:jszip@3.5.0/dist/jszip.min.js',
'devextreme-quill': 'npm:devextreme-quill@0.9.7/dist/dx-quill.min.js',
'devexpress-diagram': 'npm:devexpress-diagram@2.0.5/dist/dx-diagram.js',
'devexpress-gantt': 'npm:devexpress-gantt@2.0.8/dist/dx-gantt.js',
'preact': 'npm:preact@10.5.7/dist/preact.js',
'preact/hooks': 'npm:preact@10.5.7/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
}
});