●
LIVE DEMO
Generated using
Instruct UI - An AI for Blazor UI Generation
## What's implemented
- Two-column messaging UI: conversation sidebar and chat area with header, messages, and composer.
- Message composer with InputTextArea, typing indicator debounce, InputFile file attachments and pending attachment chips.
- Message list with sent/received bubbles, avatars, timestamps and attachment items.
- Deviation summary table with action links and bulk action buttons (Approve / Reject / Request More Info).
- Remarks modal implemented as a Blazor-rendered modal for collecting action remarks.
## Key components
- Razor constructs: foreach, @if, @onclick, @bind-Value, Task.Run and StateHasChanged.
- Input components: InputTextArea, InputFile, custom pending-attachment elements.
- Models: ConversationModel, MessageModel, UserModel, AttachmentModel (DataModel.cs).
- UI elements: Bootstrap layout classes (container-fluid, row, col-*, card), table, buttons, modal markup.
- Typing debounce using CancellationTokenSource and async Task.Delay.
## How it works
- Conversations are seeded in OnInitialized and stored in a List<ConversationModel>.
- Selecting a conversation sets selectedConversation and clears composer state.
- Composer uses @bind-Value on newMessageText plus OnInput to implement a typing indicator with debounce via CancellationTokenSource.
- InputFile captures file metadata to pendingAttachments without uploading; attachments are copied into MessageModel on SendMessage.
- SendMessage adds a MessageModel to selectedConversation.Messages, clears composer state, and schedules an optional automated reply via Task.Run.
- Remarks modal is conditionally rendered (showRemarksModal) and ConfirmRemarks appends a system message summarizing the action.
## Styling
- Uses Bootstrap utility and component classes for layout, spacing and responsive grid.
- Custom CSS provided (app.css) for messenger-specific styles: conversation-item states, message bubble variants, composer, attachment chips and a modal backdrop.
- Responsive rules adjust max-heights and bubble widths for small screens.
## Reuse steps
1. Add the Razor file and DataModel.cs to a Blazor project and include app.css in wwwroot or import in _Host/_Layout.
2. Ensure Bootstrap and Font Awesome are referenced in index.html/_Host for layout and icons.
3. Import namespaces if moved to components folder; no extra NuGet packages required beyond Blazor templates.
4. Wire persistent data and real-time features: replace in-memory Lists with a service (scoped) or SignalR hub for live updates.
5. Adapt attachment handling to upload via a backend endpoint and store references instead of only metadata.
## Limitations & next steps
- This demo is a single-page, in-memory implementation generated by Instruct UI and editable; it does not include authentication, server-side storage, or real-time transport.
- Remarks modal is UI-only; action handling should call backend APIs and update persisted state.
- File attachments store metadata only; implement upload endpoints, streaming and size/type validation for production use.
- Consider replacing Task.Run simulated replies with SignalR for multi-user real-time behavior and move seed data to a service for testability.