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Nabs.Launchpad.Core.ViewModels 10.0.249

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Nabs.Launchpad.Core.ViewModels

Nabs.Launchpad.Core.ViewModels provides MVVM-first ViewModel foundations for list/detail, item editing, and search workflows in Launchpad UI applications.

Installation

dotnet add package Nabs.Launchpad.Core.ViewModels

The Problem

// 1) CRUD ViewModel behavior (dirty state, validation, save/cancel) is repeated

// 2) Search and master-detail patterns are rebuilt per feature

// 3) Commands drift in behavior across modules

Features

• Base item editing model via BaseItemViewModel<TItem>
• Master-detail abstraction with MasterDetailViewModel<TListItem, TItem>
• Search abstraction with debounced async querying
• Validation and command-state coordination

Usage

public sealed class PeopleViewModel : MasterDetailViewModel<PersonListItem, Person>
{
 public PeopleViewModel(IStringLocalizer<PeopleViewModel> localizer) : base(localizer)
 {
 Title = "People";
 }

 protected override Task GetListItemsAsync() => Task.CompletedTask;
 protected override Task<Result<Person>> GetItemAsync(PersonListItem masterListItem) => Task.FromResult(Result.Success(new Person()));
 protected override Task<Result<Person>> NewItemAsync() => Task.FromResult(Result.Success(new Person()));
 protected override Task<Result<Person>> SaveItemAsync() => Task.FromResult(Result.Success(new Person()));
 protected override Task<Result> DeleteItemAsync(Person item) => Task.FromResult(Result.Success());
}

Configuration

Register your concrete ViewModels with DI and provide localizers/validators as needed.

Project Structure

• Abstractions/* - base item editing primitives and validation config
• MasterDetails/* - master-detail orchestration ViewModels
• Search/* - search workflow ViewModel base types

License

Copyright (c) Net Advantage Business Solutions.