Focused Row
Documentation
This example demonstrates a DataGrid widget that supports focused rows. The focusedRowKey option specifies the focused row. The onFocusedRowChanged callback function can be used to display additional information below the DataGrid when the focused row changes. The focusedRowEnabled option enables row focusing.
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<dx-data-grid
id="gridContainer"
[dataSource]="dataSource"
[columns]="columns"
[showBorders]="true"
[focusedRowEnabled]="true"
[focusedRowKey]="117"
(onFocusedRowChanging)="onFocusedRowChanging($event)"
(onFocusedRowChanged)="onFocusedRowChanged($event)">
<dxo-paging [pageSize]="10">
</dxo-paging>
</dx-data-grid>
<div class="task-info">
<div class="info">
<div id="taskSubject">{{taskSubject}}</div>
<p id="taskDetails" [innerHtml]="taskDetailsHtml"></p>
</div>
<div class="progress">
<span id="taskStatus">{{taskStatus}}</span>
<span id="taskProgress">{{taskProgress}}</span>
</div>
</div>
<div class="options">
<div class="caption">Options</div>
<div class="option">
<span>Focused row key</span>
<dx-number-box
id="taskId"
min="1"
max="183"
step="0"
[value]="focusedRowKey"
(onValueChanged)="onTaskIdChanged($event)">
</dx-number-box>
</div>
</div>
import { NgModule, Component, ViewChild, enableProdMode } from '@angular/core';
import { BrowserModule, DomSanitizer, SafeHtml } from '@angular/platform-browser';
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { DxDataGridComponent,
DxNumberBoxComponent,
DxDataGridModule,
DxNumberBoxModule } from 'devextreme-angular';
import 'devextreme/data/odata/store';
if(!/localhost/.test(document.location.host)) {
enableProdMode();
}
@Component({
selector: 'demo-app',
templateUrl: 'app/app.component.html',
styleUrls: ['app/app.component.css'],
preserveWhitespaces: true
})
export class AppComponent {
@ViewChild(DxDataGridComponent, { static: false }) dataGrid: DxDataGridComponent;
@ViewChild(DxNumberBoxComponent, { static: false }) numberBox: DxNumberBoxComponent;
columns: any;
dataSource: any;
isReady: boolean;
taskSubject: string;
taskDetailsHtml: SafeHtml;
taskStatus: string;
taskProgress: string;
focusedRowKey: number;
constructor(private sanitizer: DomSanitizer) {
this.dataSource = {
store: {
type: "odata",
key: "Task_ID",
url: "https://js.devexpress.com/Demos/DevAV/odata/Tasks"
},
expand: "ResponsibleEmployee",
select: [
'Task_ID',
'Task_Subject',
'Task_Start_Date',
'Task_Status',
'Task_Description',
'Task_Completion',
'ResponsibleEmployee/Employee_Full_Name'
]
};
this.columns = [
{
dataField: "Task_ID",
width: 80
}, {
caption: "Start Date",
dataField: "Task_Start_Date",
dataType: "date"
}, {
caption: "Assigned To",
dataField: "ResponsibleEmployee.Employee_Full_Name",
cssClass: "employee",
allowSorting: false
}, {
caption: "Subject",
dataField: "Task_Subject",
width: 350
}, {
caption: "Status",
dataField: "Task_Status"
}
];
}
onFocusedRowChanging(e) {
var rowsCount = e.component.getVisibleRows().length,
pageCount = e.component.pageCount(),
pageIndex = e.component.pageIndex(),
key = e.event && e.event.key;
if(key && e.prevRowIndex === e.newRowIndex) {
if(e.newRowIndex === rowsCount - 1 && pageIndex < pageCount - 1) {
e.component.pageIndex(pageIndex + 1).done(function() {
e.component.option("focusedRowIndex", 0);
});
} else if(e.newRowIndex === 0 && pageIndex > 0) {
e.component.pageIndex(pageIndex - 1).done(function() {
e.component.option("focusedRowIndex", rowsCount - 1);
});
}
}
}
onFocusedRowChanged(e) {
var data = e.row.data;
this.taskSubject = data.Task_Subject;
this.taskDetailsHtml = this.sanitizer.bypassSecurityTrustHtml(data.Task_Description);
this.taskStatus = data.Task_Status;
this.taskProgress = data.Task_Completion ? `${data.Task_Completion}` + "%" : "";
this.focusedRowKey = e.component.option("focusedRowKey");
this.numberBox.instance.option("value", e.component.option("focusedRowKey"));
}
onTaskIdChanged(e) {
if(e.event && e.value > 0) {
this.dataGrid.instance.option("focusedRowKey", e.value);
}
}
}
@NgModule({
imports: [
BrowserModule,
DxDataGridModule,
DxNumberBoxModule
],
declarations: [AppComponent],
bootstrap: [AppComponent],
})
export class AppModule { }
platformBrowserDynamic().bootstrapModule(AppModule);
.task-info {
font-family: Segoe UI;
min-height: 200px;
display: flex;
flex-wrap: nowrap;
border: 2px solid rgba(0, 0, 0, 0.1);
padding: 16px;
box-sizing: border-box;
align-items: baseline;
justify-content: space-between;
}
#taskSubject {
line-height: 29px;
font-size: 18px;
font-weight: bold;
}
#taskDetails {
line-height: 22px;
font-size: 14px;
margin-top: 0;
margin-bottom: 0;
}
.progress {
display: flex;
flex-direction: column;
white-space: pre;
min-width: 105px;
}
.info {
margin-right: 40px;
}
#taskProgress {
line-height: 42px;
font-size: 40px;
font-weight: bold;
}
.options {
margin-top: 20px;
padding: 20px;
background-color: rgba(191, 191, 191, 0.15);
position: relative;
}
.caption {
font-size: 18px;
font-weight: 500;
}
.option {
margin-top: 10px;
}
.option > .dx-numberbox {
width: 200px;
display: inline-block;
vertical-align: middle;
}
.option > span {
margin-right: 10px;
}
// In real applications, you should not transpile code in the browser. You can see how to create your own application with Angular and DevExtreme here:
// https://github.com/DevExpress/devextreme-angular/blob/master/README.md
System.config({
transpiler: 'ts',
typescriptOptions: {
module: "commonjs",
emitDecoratorMetadata: true,
experimentalDecorators: true
},
meta: {
'typescript': {
"exports": "ts"
}
},
paths: {
'npm:': 'https://unpkg.com/'
},
map: {
'ts': 'npm:plugin-typescript@8.0.0/lib/plugin.js',
'typescript': 'npm:typescript@3.4.5/lib/typescript.js',
'@angular/core': 'npm:@angular/core@8.0.0/bundles/core.umd.js',
'@angular/common': 'npm:@angular/common@8.0.0/bundles/common.umd.js',
'@angular/compiler': 'npm:@angular/compiler@8.0.0/bundles/compiler.umd.js',
'@angular/platform-browser': 'npm:@angular/platform-browser@8.0.0/bundles/platform-browser.umd.js',
'@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic@8.0.0/bundles/platform-browser-dynamic.umd.js',
'@angular/router': 'npm:@angular/router@8.0.0/bundles/router.umd.js',
'@angular/forms': 'npm:@angular/forms@8.0.0/bundles/forms.umd.js',
'@angular/common/http': 'npm:@angular/common@8.0.0/bundles/common-http.umd.js',
'tslib': 'npm:tslib/tslib.js',
'rxjs': 'npm:rxjs@6.3.3',
'rxjs/operators': 'npm:rxjs@6.3.3/operators',
'devextreme': 'npm:devextreme@19.1',
'jszip': 'npm:jszip@3.1.3/dist/jszip.min.js',
'quill': 'npm:quill@1.3.6/dist/quill.js',
'devexpress-diagram': 'npm:devexpress-diagram',
'devextreme-angular': 'npm:devextreme-angular@19.1'
},
packages: {
'app': {
main: './app.component.ts',
defaultExtension: 'ts'
},
'devextreme': {
defaultExtension: 'js'
},
'rxjs': { main: 'index.js', defaultExtension: 'js' },
'rxjs/operators': { main: 'index.js', defaultExtension: 'js' },
'devextreme-angular': {
main: 'index.js',
defaultExtension: 'js'
}
}
});
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<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/19.1.6/css/dx.common.css" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/19.1.6/css/dx.light.css" />
<script src="https://unpkg.com/core-js@2.4.1/client/shim.min.js"></script>
<script src="https://unpkg.com/zone.js@0.6.25/dist/zone.js"></script>
<script src="https://unpkg.com/reflect-metadata@0.1.3/Reflect.js"></script>
<script src="https://unpkg.com/systemjs@0.21.3/dist/system.js"></script>
<script src="config.js"></script>
<script>
System.import('app').catch(console.error.bind(console));
</script>
</head>
<body class="dx-viewport">
<div class="demo-container">
<demo-app>Loading...</demo-app>
</div>
</body>
</html>