update: some upgrade enhancements for the dev-app

npm/ng-packs/apps/dev-app/project.json

@@ -166,7 +166,7 @@
       "defaultConfiguration": "development"
     },
     "extract-i18n": {
-      "executor": "@angular-devkit/build-angular:extract-i18n",
+      "executor": "@angular/build:extract-i18n",
       "options": {
         "buildTarget": "dev-app:build"
       }

npm/ng-packs/apps/dev-app/src/app/app.component.ts

@@ -1,12 +1,13 @@
-import { Component } from '@angular/core';
+import { ChangeDetectionStrategy, Component } from '@angular/core';
 import { LoaderBarComponent } from '@abp/ng.theme.shared';
 import { DynamicLayoutComponent } from '@abp/ng.core';
 
 @Component({
+  changeDetection: ChangeDetectionStrategy.OnPush,
   selector: 'app-root',
   template: `
-    <abp-loader-bar></abp-loader-bar>
-    <abp-dynamic-layout></abp-dynamic-layout>
+    <abp-loader-bar />
+    <abp-dynamic-layout />
   `,
   imports: [LoaderBarComponent, DynamicLayoutComponent],
 })

npm/ng-packs/apps/dev-app/src/app/dynamic-form-page/dynamic-form-page.component.html

@@ -20,9 +20,9 @@
                     <small>All 16 field types + Nested Forms (Group & Array) with full accessibility support</small>
                 </div>
                 <div class="card-body p-4">
-                    @if (formFields.length) {
+                    @if (formFields().length) {
                     <abp-dynamic-form 
-                        [fields]="formFields" 
+                        [fields]="formFields()" 
                         [submitButtonText]="'Register'"
                         [showCancelButton]="true"
                         (onSubmit)="submit($event)"

npm/ng-packs/apps/dev-app/src/app/dynamic-form-page/dynamic-form-page.component.ts

@@ -1,38 +1,34 @@
-import { Component, inject, OnInit, viewChild } from '@angular/core';
+import { ChangeDetectionStrategy, Component, inject, viewChild } from '@angular/core';
+import { toSignal } from '@angular/core/rxjs-interop';
 import { DynamicFormComponent, FormFieldConfig } from '@abp/ng.components/dynamic-form';
 import { FormConfigService } from './form-config.service';
 
 @Component({
-    selector: 'app-dynamic-form-page',
-    templateUrl: './dynamic-form-page.component.html',
-    imports: [DynamicFormComponent],
+  changeDetection: ChangeDetectionStrategy.OnPush,
+  selector: 'app-dynamic-form-page',
+  templateUrl: './dynamic-form-page.component.html',
+  imports: [DynamicFormComponent],
 })
-export class DynamicFormPageComponent implements OnInit {
-    readonly dynamicFormComponent = viewChild(DynamicFormComponent);
-    protected readonly formConfigService = inject(FormConfigService);
+export class DynamicFormPageComponent {
+  readonly dynamicFormComponent = viewChild(DynamicFormComponent);
+  protected readonly formConfigService = inject(FormConfigService);
 
-    formFields: FormFieldConfig[] = [];
+  readonly formFields = toSignal(this.formConfigService.getFormConfig(), {
+    initialValue: [] as FormFieldConfig[],
+  });
 
-    ngOnInit() {
-        this.formConfigService.getFormConfig().subscribe(config => {
-            this.formFields = config;
-        });
-    }
+  submit(formData: any) {
+    console.log('✅ Form Submitted Successfully!', formData);
+    console.table(formData);
 
-    submit(formData: any) {
-        console.log('✅ Form Submitted Successfully!', formData);
-        console.table(formData);
-        
-        // Show success message
-        alert('✅ Form submitted successfully! Check the console for details.');
-        
-        // Reset form after submission
-        this.dynamicFormComponent().resetForm();
-    }
+    alert('✅ Form submitted successfully! Check the console for details.');
 
-    cancel() {
-        console.log('❌ Form Cancelled');
-        alert('Form cancelled');
-        this.dynamicFormComponent().resetForm();
-    }
+    this.dynamicFormComponent()?.resetForm();
+  }
+
+  cancel() {
+    console.log('❌ Form Cancelled');
+    alert('Form cancelled');
+    this.dynamicFormComponent()?.resetForm();
+  }
 }

npm/ng-packs/apps/dev-app/src/app/home/home.component.html

@@ -16,7 +16,7 @@
     <p class="lead px-lg-5 mx-lg-5">{{ '::LongWelcomeMessage' | abpLocalization }}</p>
 
     @if (!hasLoggedIn) {
-    <abp-button [loading]="loading" (click)="login()" [disabled]="loading" class="px-4 ml-1" role="button"
+    <abp-button [loading]="loading()" (click)="login()" [disabled]="loading()" class="px-4 ml-1" role="button"
       iconClass="fa fa-sign-in">
       {{ 'AbpAccount::Login' | abpLocalization }}
     </abp-button>

npm/ng-packs/apps/dev-app/src/app/home/home.component.ts

@@ -1,10 +1,11 @@
 import { AuthService, LocalizationPipe } from '@abp/ng.core';
-import { Component, inject } from '@angular/core';
+import { ChangeDetectionStrategy, Component, inject, signal } from '@angular/core';
 import { NgTemplateOutlet } from '@angular/common';
 import { ButtonComponent, CardBodyComponent, CardComponent } from '@abp/ng.theme.shared';
 import { RouterLink } from '@angular/router';
 
 @Component({
+  changeDetection: ChangeDetectionStrategy.OnPush,
   selector: 'app-home',
   templateUrl: './home.component.html',
   imports: [
@@ -18,14 +19,14 @@ import { RouterLink } from '@angular/router';
 })
 export class HomeComponent {
   protected readonly authService = inject(AuthService);
-  loading = false;
+  readonly loading = signal(false);
 
   get hasLoggedIn(): boolean {
     return this.authService.isAuthenticated;
   }
 
   login() {
-    this.loading = true;
+    this.loading.set(true);
     this.authService.navigateToLogin();
   }
 }

npm/ng-packs/apps/dev-app/src/app/localization-test/localization-test.component.ts

@@ -1,13 +1,13 @@
-import { Component, inject, OnInit } from '@angular/core';
+import { ChangeDetectionStrategy, Component, inject, signal } from '@angular/core';
+import { toSignal } from '@angular/core/rxjs-interop';
 import { LocalizationPipe, UILocalizationService, SessionStateService } from '@abp/ng.core';
 import { CommonModule } from '@angular/common';
 import { CardComponent, CardBodyComponent } from '@abp/ng.theme.shared';
-import { AsyncPipe } from '@angular/common';
 
 @Component({
+  changeDetection: ChangeDetectionStrategy.OnPush,
   selector: 'app-localization-test',
-  standalone: true,
-  imports: [CommonModule, LocalizationPipe, CardComponent, CardBodyComponent, AsyncPipe],
+  imports: [CommonModule, LocalizationPipe, CardComponent, CardBodyComponent],
   template: `
     <div class="container mt-5">
       <h2>Hybrid Localization Test</h2>
@@ -22,7 +22,7 @@ import { AsyncPipe } from '@angular/common';
 
       <abp-card cardClass="mt-4">
         <abp-card-body>
-          <h5>UI Localization (from /assets/localization/{{ currentLanguage$ | async }}.json)</h5>
+          <h5>UI Localization (from /assets/localization/{{ currentLanguage() }}.json)</h5>
           <p><strong>MyProjectName::CustomKey:</strong> {{ 'MyProjectName::CustomKey' | abpLocalization }}</p>
           <p><strong>MyProjectName::TestMessage:</strong> {{ 'MyProjectName::TestMessage' | abpLocalization }}</p>
         </abp-card-body>
@@ -39,20 +39,19 @@ import { AsyncPipe } from '@angular/common';
       <abp-card cardClass="mt-4">
         <abp-card-body>
           <h5>Loaded UI Localizations</h5>
-          <pre>{{ loadedLocalizations | json }}</pre>
+          <pre>{{ loadedLocalizations() | json }}</pre>
         </abp-card-body>
       </abp-card>
     </div>
   `,
 })
-export class LocalizationTestComponent implements OnInit {
+export class LocalizationTestComponent {
   private uiLocalizationService = inject(UILocalizationService);
   private sessionState = inject(SessionStateService);
 
-  loadedLocalizations: any = {};
-  currentLanguage$ = this.sessionState.getLanguage$();
+  readonly loadedLocalizations = signal(this.uiLocalizationService.getLoadedLocalizations());
 
-  ngOnInit() {
-    this.loadedLocalizations = this.uiLocalizationService.getLoadedLocalizations();
-  }
+  readonly currentLanguage = toSignal(this.sessionState.getLanguage$(), {
+    initialValue: this.sessionState.getLanguage(),
+  });
 }

npm/ng-packs/apps/dev-app/tsconfig.json

@@ -28,6 +28,6 @@
   "angularCompilerOptions": {
     "strictInjectionParameters": false,
     "strictInputAccessModifiers": false,
-    "strictTemplates": false
+    "strictTemplates": true
   }
 }

npm/ng-packs/guides/DEVELOPMENT_GUIDE.md

@@ -222,12 +222,52 @@ Example HTML template
 ### Component Best Practices
 
 1. **Single Responsibility**: Each component should have one clear purpose
-2. **Dependency Injection**: Use constructor injection for services
-3. **Lifecycle Management**: Implement `OnInit` and `OnDestroy` when needed
-4. **State Management**: Use reactive forms and observables
-5. **Error Handling**: Implement proper error boundaries
-6. **Accessibility**: Follow ARIA guidelines
-7. **Performance**: Use `OnPush` change detection when possible
+2. **Dependency Injection**: Use `inject()` for services
+3. **Change detection**: Set `changeDetection: ChangeDetectionStrategy.OnPush` explicitly on every component
+4. **Async state**: Use `signal()` / `computed()` / `toSignal()` — avoid mutating plain properties in `.subscribe()` without a CD trigger
+5. **List pages**: Use `toSignal(this.list.hookToQuery(...))` and bind `data().items` in templates
+6. **Component IO**: Prefer signal `input()` / `output()` / `model()` over `@Input` / `@Output`
+7. **Modal bindings**: `[visible]="isModalVisible()" (visibleChange)="isModalVisible.set($event)"` with `[busy]="modalBusy()"`
+8. **`markForCheck()`**: Discouraged — use only in directives, CVAs, or dynamic component hosts where signals cannot apply
+9. **Error Handling**: Implement proper error boundaries
+10. **Accessibility**: Follow ARIA guidelines
+
+See [upgrade-notes.md](../upgrade-notes.md) for Angular 22 customer migration guidance.
+
+### Angular 22 component pattern (recommended)
+
+```typescript
+import { ChangeDetectionStrategy, Component, inject, signal } from '@angular/core';
+import { toSignal } from '@angular/core/rxjs-interop';
+import { ListService, PagedResultDto } from '@abp/ng.core';
+
+@Component({
+  changeDetection: ChangeDetectionStrategy.OnPush,
+  selector: 'abp-my-list',
+  providers: [ListService],
+})
+export class MyListComponent {
+  protected readonly list = inject(ListService);
+  protected readonly service = inject(MyService);
+
+  readonly data = toSignal(this.list.hookToQuery(q => this.service.getList(q)), {
+    initialValue: { items: [], totalCount: 0 } as PagedResultDto<MyDto>,
+  });
+
+  readonly isModalVisible = signal(false);
+  readonly modalBusy = signal(false);
+}
+```
+
+```html
+<abp-extensible-table [data]="data().items" [recordsTotal]="data().totalCount" [list]="list" />
+
+<abp-modal
+  [visible]="isModalVisible()"
+  (visibleChange)="isModalVisible.set($event)"
+  [busy]="modalBusy()"
+/>
+```
 
 ## Service Layer