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FLUT-883065- [Others] How to highlight the cell value when searching in Flutter DataTable (SfDataGrid)?
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.gitignore

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# Miscellaneous
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*.class
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*.log
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*.pyc
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*.swp
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.DS_Store
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.atom/
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.buildlog/
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.history
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.svn/
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migrate_working_dir/
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# IntelliJ related
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*.iml
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*.ipr
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*.iws
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.idea/
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# The .vscode folder contains launch configuration and tasks you configure in
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# VS Code which you may wish to be included in version control, so this line
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# is commented out by default.
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#.vscode/
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# Flutter/Dart/Pub related
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**/doc/api/
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**/ios/Flutter/.last_build_id
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.dart_tool/
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.flutter-plugins
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.flutter-plugins-dependencies
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.pub-cache/
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.pub/
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/build/
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# Symbolication related
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app.*.symbols
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# Obfuscation related
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app.*.map.json
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# Android Studio will place build artifacts here
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/android/app/debug
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/android/app/profile
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/android/app/release

README.md

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# How-to-highlight-the-cell-value-when-searching-in-Flutter-DataTable-SfDataGrid-
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How to highlight the cell value when searching in Flutter DataTable (SfDataGrid)?
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# How to highlight the cell value when searching in Flutter DataTable (SfDataGrid)?
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In this article, we will show you how to highlight the cell value when searching in [Flutter DataTable](https://www.syncfusion.com/flutter-widgets/flutter-datagrid).
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Initialize the [SfDataGrid](https://pub.dev/documentation/syncfusion_flutter_datagrid/latest/datagrid/SfDataGrid-class.html) widget with all the necessary properties. Within the [DataGridSource.buildRow()](https://pub.dev/documentation/syncfusion_flutter_datagrid/latest/datagrid/DataGridSource/buildRow.html), if [searchController.text](https://api.flutter.dev/flutter/widgets/TextEditingController/text.html) is equal to the corresponding cell value, you should add the appropriate style to highlight the text in the cell. Additionally, remember to call [notifyListeners](https://api.flutter.dev/flutter/foundation/ChangeNotifier/notifyListeners.html) when the searchController.text changes, to refresh the DataGrid and apply highlighting to the searched cell value.
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```dart
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Widget searchField() {
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return Container(
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width: 200,
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height: 50,
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decoration: BoxDecoration(
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border: Border.all(
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color: Colors.grey,
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width: 1.0,
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),
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borderRadius: BorderRadius.circular(8.0),
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),
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child: TextField(
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controller: employeeDataSource.searchController,
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onChanged: (v) {
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employeeDataSource.refreshDataGridSource();
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initiateScrolling();
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},
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decoration: const InputDecoration(
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hintText: "Search",
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),
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),
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);
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}
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class EmployeeDataSource extends DataGridSource {
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@override
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DataGridRowAdapter buildRow(DataGridRow row) {
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return DataGridRowAdapter(
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cells: row.getCells().map<Widget>((e) {
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TextStyle? getTextStyle() {
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if (searchController.text.toLowerCase() ==
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e.value.toString().toLowerCase()) {
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return TextStyle(
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fontWeight: FontWeight.bold,
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color: Colors.pinkAccent,
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background: Paint()..color = Colors.yellow);
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} else {
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return null;
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}
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}
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return Container(
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alignment: Alignment.center,
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padding: const EdgeInsets.all(8.0),
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child: Text(
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e.value.toString(),
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style: getTextStyle(),
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),
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);
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}).toList(),
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);
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}
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```
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You can download the example from [GitHub](https://github.com/SyncfusionExamples/How-to-highlight-the-cell-value-when-searching-in-Flutter-DataTable-SfDataGrid).

android/.gitignore

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gradle-wrapper.jar
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/.gradle
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/captures/
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/gradlew
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/gradlew.bat
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/local.properties
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GeneratedPluginRegistrant.java
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# Remember to never publicly share your keystore.
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# See https://flutter.dev/docs/deployment/android#reference-the-keystore-from-the-app
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key.properties
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**/*.keystore
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**/*.jks

android/app/build.gradle

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plugins {
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id "com.android.application"
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id "kotlin-android"
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id "dev.flutter.flutter-gradle-plugin"
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}
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def localProperties = new Properties()
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def localPropertiesFile = rootProject.file('local.properties')
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if (localPropertiesFile.exists()) {
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localPropertiesFile.withReader('UTF-8') { reader ->
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localProperties.load(reader)
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}
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}
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def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
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if (flutterVersionCode == null) {
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flutterVersionCode = '1'
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}
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def flutterVersionName = localProperties.getProperty('flutter.versionName')
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if (flutterVersionName == null) {
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flutterVersionName = '1.0'
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}
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android {
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namespace "com.example.highlight_value"
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compileSdk flutter.compileSdkVersion
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ndkVersion flutter.ndkVersion
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compileOptions {
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sourceCompatibility JavaVersion.VERSION_1_8
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targetCompatibility JavaVersion.VERSION_1_8
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}
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kotlinOptions {
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jvmTarget = '1.8'
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}
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sourceSets {
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main.java.srcDirs += 'src/main/kotlin'
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}
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defaultConfig {
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// TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
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applicationId "com.example.highlight_value"
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// You can update the following values to match your application needs.
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// For more information, see: https://docs.flutter.dev/deployment/android#reviewing-the-gradle-build-configuration.
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minSdkVersion flutter.minSdkVersion
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targetSdkVersion flutter.targetSdkVersion
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versionCode flutterVersionCode.toInteger()
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versionName flutterVersionName
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}
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buildTypes {
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release {
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// TODO: Add your own signing config for the release build.
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// Signing with the debug keys for now, so `flutter run --release` works.
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signingConfig signingConfigs.debug
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}
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}
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}
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flutter {
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source '../..'
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}
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dependencies {}
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<manifest xmlns:android="http://schemas.android.com/apk/res/android">
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<!-- The INTERNET permission is required for development. Specifically,
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the Flutter tool needs it to communicate with the running application
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to allow setting breakpoints, to provide hot reload, etc.
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-->
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<uses-permission android:name="android.permission.INTERNET"/>
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</manifest>
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<manifest xmlns:android="http://schemas.android.com/apk/res/android">
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<application
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android:label="highlight_value"
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android:name="${applicationName}"
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android:icon="@mipmap/ic_launcher">
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<activity
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android:name=".MainActivity"
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android:exported="true"
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android:launchMode="singleTop"
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android:theme="@style/LaunchTheme"
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android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
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android:hardwareAccelerated="true"
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android:windowSoftInputMode="adjustResize">
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<!-- Specifies an Android theme to apply to this Activity as soon as
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the Android process has started. This theme is visible to the user
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while the Flutter UI initializes. After that, this theme continues
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to determine the Window background behind the Flutter UI. -->
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<meta-data
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android:name="io.flutter.embedding.android.NormalTheme"
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android:resource="@style/NormalTheme"
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/>
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<intent-filter>
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<action android:name="android.intent.action.MAIN"/>
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<category android:name="android.intent.category.LAUNCHER"/>
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</intent-filter>
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</activity>
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<!-- Don't delete the meta-data below.
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This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
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<meta-data
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android:name="flutterEmbedding"
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android:value="2" />
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</application>
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<!-- Required to query activities that can process text, see:
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https://developer.android.com/training/package-visibility?hl=en and
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https://developer.android.com/reference/android/content/Intent#ACTION_PROCESS_TEXT.
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In particular, this is used by the Flutter engine in io.flutter.plugin.text.ProcessTextPlugin. -->
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<queries>
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<intent>
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<action android:name="android.intent.action.PROCESS_TEXT"/>
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<data android:mimeType="text/plain"/>
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</intent>
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</queries>
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</manifest>
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package com.example.highlight_value
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import io.flutter.embedding.android.FlutterActivity
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class MainActivity: FlutterActivity()
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<?xml version="1.0" encoding="utf-8"?>
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<!-- Modify this file to customize your launch splash screen -->
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<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
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<item android:drawable="?android:colorBackground" />
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<!-- You can insert your own image assets here -->
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<!-- <item>
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<bitmap
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android:gravity="center"
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android:src="@mipmap/launch_image" />
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</item> -->
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</layer-list>
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<?xml version="1.0" encoding="utf-8"?>
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<!-- Modify this file to customize your launch splash screen -->
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<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
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<item android:drawable="@android:color/white" />
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<!-- You can insert your own image assets here -->
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<!-- <item>
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<bitmap
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android:gravity="center"
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android:src="@mipmap/launch_image" />
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</item> -->
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</layer-list>
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