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T
Tristen Barnes

Basic Calculation Component Design

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MudBlazor Calculator provides a compact calculator component built with MudNumericField and MudSelect. It performs basic arithmetic and displays inline results inside a MudPaper layout.

● LIVE DEMO
Generated using Instruct UI - An AI for Blazor UI Generation
## What's implemented - A single-page calculator UI for basic arithmetic (addition, subtraction, multiplication, division). - Numeric inputs for two operands and a select input for operator choice. - A Calculate action button and inline result text. - Basic input checks and error messages (null checks and divide-by-zero handling). ## Key components - MudPaper, MudText - MudGrid, MudItem - MudNumericField (T="double?") for numeric input - MudSelect and MudSelectItem for operator selection - MudButton for triggering calculation ## How it works - Two nullable double fields (_number1, _number2) bind to MudNumericField via @bind-Value. - Operator selection binds to a string field (_selectedOperator) using @bind-Value on MudSelect. - Calculate() runs on MudButton click and uses a switch on _selectedOperator to compute _result. - Validation is implemented with simple null checks and a divide-by-zero check; no EditForm or DataAnnotationsValidator is used. - Result is rendered conditionally when _result is not empty. ## Styling - UI uses MudBlazor components and theme defaults (MudPaper elevation, Typo settings, Variant props). - Layout uses MudGrid and MudItem responsive breakpoints (xs/sm) for a compact form on small screens. - Button and inputs rely on MudBlazor styling rather than custom CSS; responsiveness is handled by MudGrid column sizing. ## Reuse steps 1. Add the MudBlazor NuGet package and import MudBlazor namespace in _Imports.razor. 2. Register MudBlazor services in Program.cs and add the MudBlazor CSS (Theme provider) to MainLayout or index.html. 3. Drop the Calculator component into a page and adapt model types and labels as needed. 4. Replace local Calculate logic with injected services or state management if server or persistent data is required. ## Limitations & next steps - This is a single component generated by Instruct UI and demonstrates UI wiring only; it does not include global app services, localization, or authentication. - No form-level validation attributes or EditForm-based validation are present; consider adding DataAnnotations and EditForm for richer validation messages. - Replace inline calculation logic with a service for testability and to support async operations or logging. - Add unit tests for calculation logic and consider keyboard accessibility and ARIA attributes for better accessibility.