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• The LeptonX resource not appearing in the Language Management UI, even though it exists in the database, is a known scenario in ABP Framework. This typically happens because the LeptonX theme's localization resources are embedded and not registered as dynamic/localizable resources in the Language Management module by default.

• The Language Management module only lists resources that are registered for dynamic localization. Theme resources like LeptonX are usually not registered this way, as they are intended for static use and are not meant to be managed via the Language Management UI.

• If you want LeptonX (or any other theme resource) to appear in the Language Management UI, you must explicitly register it as a dynamic localization resource in your application. This is not done automatically for theme resources.

How to register LeptonX as a dynamic localization resource:

1. In your web module (e.g., YourProject.Web), configure the localization options to add LeptonX as a resource:

Configure<AbpLocalizationOptions>(options =>
   {
       options.Resources
           .Add<LeptonXResource>("en")
           .AddVirtualJson("/Localization/LeptonX");
   });

• Make sure you have the correct resource type (LeptonXResource) and the virtual JSON path matches your project structure.

2. If you want it to be managed by the Language Management module, you may also need to ensure it is included in the dynamic localization provider setup.

3. After making these changes, restart your application. The LeptonX resource should now appear in the Language Management UI.

References:

• LeptonX Theme Documentation
• Language Management Module
• LeptonX Community Article

This approach aligns with ABP's modular localization system and is required for any resource you want to manage dynamically.

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To resolve the issue where the Angular date picker (NgBootstrap datepicker) is not displaying in your ABP Angular application, ensure the following steps are completed:

1. Import NgbDatepickerModule
   In your book.module.ts, import and add NgbDatepickerModule to the imports array:

import { NgbDatepickerModule } from '@ng-bootstrap/ng-bootstrap';

   @NgModule({
     declarations: [BookComponent],
     imports: [
       BookRoutingModule,
       SharedModule,
       NgbDatepickerModule, // <-- Add this line
     ]
   })
   export class BookModule { }

2. Provide NgbDateAdapter
   In your book.component.ts, add the following provider to ensure the date picker works with JavaScript Date objects:

import { NgbDateNativeAdapter, NgbDateAdapter } from '@ng-bootstrap/ng-bootstrap';

   @Component({
     selector: 'app-book',
     templateUrl: './book.component.html',
     styleUrls: ['./book.component.scss'],
     providers: [
       ListService,
       { provide: NgbDateAdapter, useClass: NgbDateNativeAdapter } // <-- Add this line
     ],
   })
   export class BookComponent implements OnInit {
     // ...
   }

3. Check Your Template
   Make sure your template uses the date picker correctly:

<input
     #datepicker="ngbDatepicker"
     class="form-control"
     name="datepicker"
     formControlName="publishDate"
     ngbDatepicker
     (click)="datepicker.toggle()"
   />

4. Install NgBootstrap
   If you haven't already, install @ng-bootstrap/ng-bootstrap:

yarn add @ng-bootstrap/ng-bootstrap

or

npm install @ng-bootstrap/ng-bootstrap

5. Restart the Angular App
   After making these changes, restart your Angular development server.

These steps should resolve the error and make the date picker work as expected.

Sources:

• ABP Book Store Tutorial - Part 3: Creating, Updating and Deleting Books (Datepicker)

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• 两台服务器部署相同的 ABP 应用并共用一套数据库是支持的，这属于“集群部署”或“多实例部署”常见场景。ABP 框架天然支持多实例/多节点部署，前提是数据库和缓存（如 Redis）等共享资源配置正确。

• 关于 OpenIddict（或 IdentityServer）Client 配置：

  • 如果两台服务器运行的是同一个前端应用（如 Angular），只要它们的回调地址（RedirectUris、PostLogoutRedirectUris、ClientUri）都配置在同一个 ClientId 下即可。也就是说，可以在同一个 ClientId 的 RedirectUris、PostLogoutRedirectUris、ClientUri 字段中添加多个地址（如两台服务器的地址）。
  • 不需要为每台服务器单独新建 ClientId，除非你有特殊的隔离需求（如不同的权限、不同的客户端配置等）。

• 配置方法举例（以 OpenIddictApplications 表为例）：

  • RedirectUris 字段可以配置为：["http://192.168.1.174:4200", "http://192.168.1.175:4200"]
  • PostLogoutRedirectUris、ClientUri 同理，均可配置多个地址。

• 这样无论用户访问哪台服务器，认证流程都能正常回调到对应的前端地址。

• 参考官方文档说明：

  • ABP 集群部署说明：https://abp.io/docs/latest/deployment/clustered-environment
  • ABP 多实例注册/登录慢问题（含集群相关讨论）：https://abp.io/support/questions/3587

• 结论：只需在同一个 ClientId 下配置所有需要的回调地址即可，无需为每台服务器单独新建 ClientId。

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• ABP Studio 的商业许可证到期后，您仍然可以继续使用已获得的 ABP Studio 及其生成的项目（即拥有永久使用权）。到期后，您将无法获得最新的重大版本更新和新功能，但不会影响现有项目的开发和运行。您可以继续登录并在开发模式下使用 ABP Studio，只是无法再使用 ABP Suite 等商业增值工具或获取技术支持。

• 详细说明可参考官方 FAQ：“许可证到期后会发生什么？”

• 相关链接（已验证可访问）：

  • https://abp.io/support/questions/1791
  • https://abp.io/support/questions/1817
  • https://abp.io/pricing

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• To enable basic ABP functionality (such as IBlockUiService and INotificationService) in a minimal Blazor Web App, you need to ensure the correct bundles and service initializations are in place. Here are the steps and explanations for your questions:

1. Required Bundles in App.razor:
   • For Blazor Server, you should include the BlazorStandardBundles in your layout or _Host.cshtml (for Blazor Server) or in the appropriate place for Blazor WebAssembly.
   • For Blazor WebAssembly, use BlazorWebAssemblyStandardBundles.
   • These bundles ensure that the necessary JavaScript and CSS files (including those for block UI, notifications, etc.) are available.
   • Example for Blazor Server (in _Host.cshtml or MainLayout.razor):

<abp-style-bundle Name="BlazorStandardBundles.Styles.Global" />
     <abp-script-bundle Name="BlazorStandardBundles.Scripts.Global" />

• For Blazor WebAssembly, use:

<abp-style-bundle Name="BlazorWebAssemblyStandardBundles.Styles.Global" />
     <abp-script-bundle Name="BlazorWebAssemblyStandardBundles.Scripts.Global" />

• The BlazorWebAssemblyStandardBundles are specifically for Blazor WASM projects and should be used in the host project that serves the WASM client.

2. Blazorise Initialization:
   • If your components depend on Blazorise (e.g., for notifications), you must initialize Blazorise in your Program.cs:

builder.Services.AddBlazorise(options => { /* options */ })
         .AddBootstrapProviders()
         .AddFontAwesomeIcons();

• In your App.razor or MainLayout.razor, add:

<Blazorise.Bootstrap.BootstrapProvider>
         <Blazorise.Icons.FontAwesome.FontAwesomeIconProvider>
             @Body
         </Blazorise.Icons.FontAwesome.FontAwesomeIconProvider>
     </Blazorise.Bootstrap.BootstrapProvider>

• The ABP module Volo.Abp.AspNetCore.Components.Web.Theming (and Volo.Abp.BlazoriseUI) registers Blazorise services, but you still need to ensure the correct providers and icon sets are initialized in your UI code.

3. Other Requirements:
   • Make sure your project references the correct theme or at least the standard bundles, as some ABP services expect certain scripts/styles to be present.
   • If you use ABP modules that depend on global assets (JS/CSS), ensure those are contributed via bundle contributors or included in your bundle configuration.
   • If you are not using a theme, you must still ensure the global bundles are present for ABP UI services to function.

Example configuration in your module:

[DependsOn(
    typeof(AbpAspNetCoreComponentsWebThemingModule),
    typeof(AbpBlazoriseUIModule)
)]
public class MyMinimalBlazorModule : AbpModule
{
    public override void ConfigureServices(ServiceConfigurationContext context)
    {
        Configure<AbpBundlingOptions>(options =>
        {
            options.StyleBundles.Get(BlazorStandardBundles.Styles.Global)
                .AddContributors(typeof(MyCustomStyleContributor));
            options.ScriptBundles.Get(BlazorStandardBundles.Scripts.Global)
                .AddContributors(typeof(MyCustomScriptContributor));
        });
    }
}

• If you need to add custom JS/CSS, implement your own BundleContributor and add it as shown above.

Sources

• Blazor UI: Theming System: Global Styles & Scripts / Bundling & Minification
• Bundle Contributors
• ABP Global Assets in Blazor WebAssembly

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• In the latest ABP Studio, Angular UI now defaults to the standalone component structure, but module-based (NgModule) DDD modules are still supported for backwards compatibility. When adding a new DDD module, you can select the user interface type (including Angular) as before.

• The process is:

  1. Right-click the solution root in ABP Studio.
  2. Select Add > New Module > DDD Module.
  3. In the dialog, choose "Angular" as the UI option.
  4. Proceed with the rest of the wizard (database provider, etc.).

• If you want to use the previous module-based structure instead of the new standalone approach, ABP Studio and ABP Schematics still support both. When generating a library or module, you will be prompted to select the template type: "module" (classic NgModule) or "standalone" (new Angular structure). Choose "module" to keep the old behavior.

• Both approaches are maintained for compatibility, so you can continue to add Angular DDD modules as before by selecting the appropriate template type during module creation.

Sources:

• https://abp.io/docs/latest/solution-templates/application-module/
• https://abp.io/community/articles/zzi2rr2z

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When creating a new solution in ABP Studio, the solution name you provide in the wizard should be used as the actual solution name. The behavior where ABP Studio replaces your chosen name with "AbpSolution1", "AbpSolution2", etc., is not expected and does not align with the documented workflow.

This issue may be related to a bug in the ABP Studio version distributed via the Microsoft Store. The official documentation and release notes do not mention this as standard or intended behavior. The ABP CLI, as you observed, correctly uses the provided solution name.

Recommended Actions:

1. Ensure you are using the latest version of ABP Studio. You can check for updates within the application via Help -> Check for Updates or download the latest version directly from the official site: https://abp.io/studio
2. If the problem persists with the latest version, consider downloading ABP Studio directly from the official ABP website instead of the Microsoft Store, as there may be differences in distribution or update timing.
3. If the issue continues, report it as a bug to the ABP team via their GitHub issues page or support channels, providing details about your environment and steps to reproduce.

For now, using the ABP CLI is a valid workaround, as it respects your provided solution name.

Sources:

• https://abp.io/docs/latest/studio/solution-explorer
• https://abp.io/docs/latest/studio
• https://abp.io/docs/latest/studio/release-notes

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Thank you for the detailed analysis and proposed solutions regarding the IdentityLinkUser query performance issue in ABP Framework 9.2.1. Your assessment is accurate and aligns with previously reported issues, including:

• Excessive parameter generation in the SQL query by IdentityLinkUserRepository.GetListAsync(), especially with includeIndirect: true.
• The resulting O(n²) parameter growth, which quickly approaches SQL Server's 2100 parameter limit and causes severe performance degradation or outright query failure as the number of linked users increases.

Your workaround using includeIndirect: false and batch fetching is a valid mitigation, but as you noted, it does not address the underlying inefficiency in the repository implementation.

Based on validated sources and the current state of the ABP Framework:

• This issue has been reported and discussed in detail in the following support threads:

  • [Linked Accounts - The loading time of the modal is too long (Question #9859)](https://abp.io/support/questions/9859)
  • [ABP EF Core horribly slow with 2k related entities (Question #9631)](https://abp.io/support/questions/9631)
  • [Linked Account modal is too slow (Question #4568)](https://abp.io/support/questions/4568)

• The root cause is the recursive, exclusion-based query pattern in the repository, which is not scalable for large numbers of linked users.

• As of ABP 9.2.1 (and up to 9.2.3), there is no built-in support for recursive CTEs or temp table-based solutions in the IdentityLinkUserRepository. The current implementation still relies on iterative exclusion, leading to parameter explosion.

• Your proposed solution using a recursive CTE is the recommended approach for SQL Server and would resolve the parameter limit and performance issues. However, this is not yet implemented in the official ABP modules.

• The ABP team has acknowledged the problem in the referenced support threads, and partial improvements (such as GetListByIdsAsync) have been made, but a full repository-level fix (e.g., CTE-based querying) is not yet available.

Recommended Actions:

1. Continue using your current workaround (includeIndirect: false and batch fetching) to avoid production impact.
2. Monitor ABP release notes for future updates addressing this issue.
3. If you require a permanent fix now, consider implementing a custom repository method using a recursive CTE as you described, and replace the default IdentityLinkUserRepository via dependency injection.
4. You may also submit a feature request or upvote existing issues on the ABP GitHub repository to prioritize this fix.

Summary:
The parameter explosion in IdentityLinkUserRepository.GetListAsync() is a known and validated issue. The most effective solution is to implement a recursive CTE or similar efficient query strategy. Until this is available in the official ABP release, your workaround is the best practice.

Sources:

• [Linked Accounts - The loading time of the modal is too long (Question #9859)](https://abp.io/support/questions/9859)
• [ABP EF Core horribly slow with 2k related entities (Question #9631)](https://abp.io/support/questions/9631)
• [Linked Account modal is too slow (Question #4568)](https://abp.io/support/questions/4568)

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• The duplicated and cancelled /api/abp/application-configuration requests you observe are typically caused by the browser or frontend framework (Angular) making multiple requests in quick succession, often due to application initialization logic or HTTP interceptors. In ABP Angular applications, this endpoint is called on startup to load configuration and localization data.

• The cancellation and duplication can also occur if a previous request is superseded by a new one before the first completes, or if the user navigates quickly, causing Angular to re-initialize services. The log shows a System.OperationCanceledException, which is expected when a request is aborted.

• This behavior is not unique to ABP; it is common in SPAs (Single Page Applications) and is generally harmless unless it causes user-facing issues or performance problems. If you want to further analyze or reduce such requests, consider:

  • Checking your Angular app's initialization and HTTP interceptor logic for repeated calls.
  • Using browser dev tools to see what triggers the requests.
  • Ensuring that only one configuration request is made on app startup.

• For more details on monitoring HTTP requests in ABP Studio and troubleshooting, see the official documentation:

  • https://abp.io/docs/latest/studio/monitoring-applications

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To address the issue of external font imports in LeptonX's font-bundle.css causing timeouts in restricted environments, you have a few options:

1. Override or Replace font-bundle.css:
   • You can override the default font-bundle.css by providing your own version in your project. Place a custom font-bundle.css in your wwwroot or static assets and ensure it is served instead of the default one. This file can be empty or contain only local font definitions.
   • Example (empty override):

/* font-bundle.css overridden to remove external font imports */

• You can use the same middleware approach you described, or configure static file serving to prioritize your custom file.

2. Remove or Replace the @import in the Build Pipeline:

   • If you control the build process, you can remove or comment out the @import line in font-bundle.css before deployment, or replace it with a local font-face definition.

3. Use Local Fonts:

   • Download the required font files (e.g., Inter) and serve them from your own server. Update font-bundle.css to use local @font-face rules pointing to your internal URLs.

4. No Built-in Configuration (as of v9.2.3):

   • There is currently no built-in or documented configuration option in LeptonX to disable or redirect the remote font import in font-bundle.css. Overriding the file or intercepting the request, as you have done, is the recommended approach for now.

This approach aligns with common ABP and LeptonX theme customization practices for restricted environments.

Sources:

• https://docs.abp.io/en/commercial/latest/themes/lepton-x/blazor
• https://abp.io/support/questions/6503

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