feature: add blazor app

This commit is contained in:
2025-04-30 00:34:47 +02:00
parent c65e6ac140
commit 57e5119985
33 changed files with 774 additions and 0 deletions

57
FahrzeugDatenBank/Auto.cs Normal file
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namespace FahrzeugDatenBank
{
public class Auto : Fahrzeug, IAuftankbar
{
public Auto()
{
base.AnzahlRaeder = 4;
base.ReifenTyp = "Sommer";
}
private bool istAufgetankt = false;
public void Auftanken()
{
this.istAufgetankt = true;
}
public override void WechsleReifenTyp()
{
if (base.ReifenTyp == "Sommer")
{
base.ReifenTyp = "Winter";
}
else
{
base.ReifenTyp = "Sommer";
}
}
}
}
namespace FahrzeugDatenBank
{
public class Auto2 : Fahrzeug
{
public Auto2()
{
base.AnzahlRaeder = 4;
base.ReifenTyp = "Sommer";
}
public override void WechsleReifenTyp()
{
if (base.ReifenTyp == "Sommer")
{
base.ReifenTyp = "Winter";
}
else
{
base.ReifenTyp = "Sommer";
}
}
}
}

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namespace FahrzeugDatenBank
{
public class Fahrrad : Fahrzeug
{
public Fahrrad()
{
base.AnzahlRaeder = 2;
base.ReifenTyp = "Strassenreifen";
}
public override void WechsleReifenTyp()
{
if (base.ReifenTyp == "Strassenreifen")
{
base.ReifenTyp = "Rennreifen";
}
else
{
base.ReifenTyp = "Strassenreifen";
}
}
}
}

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namespace FahrzeugDatenBank
{
public abstract class Fahrzeug
{
public Fahrzeug()
{
this.ReifenTyp = "";
}
public string? Name { get; set; }
public int Id { get; set; }
public int AnzahlRaeder { get; protected set; }
public string ReifenTyp { get; protected set; }
public abstract void WechsleReifenTyp();
public virtual void SetzeAnzahlRaeder(int anzahlDerRaeder)
{
if (anzahlDerRaeder < 0) return;
this.AnzahlRaeder = anzahlDerRaeder;
}
}
}
namespace FahrzeugDatenBank
{
public class Fahrzeug2
{
public Fahrzeug2()
{
this.SetAnzahlRaeder(4);
}
public Fahrzeug2(int anzahlDerReader)
{
this.SetAnzahlRaeder(anzahlDerReader);
}
private int anzahlRaeder;
public int GetAnzahlRaeder()
{
return this.anzahlRaeder;
}
protected void SetAnzahlRaeder(int anzahlDerReader)
{
this.anzahlRaeder = anzahlDerReader;
}
}
}
namespace FahrzeugDatenBank
{
public class Fahrzeug3
{
public Fahrzeug3()
{
this.AnzahlRaeder = 4;
}
public Fahrzeug3(int anzahlDerReader)
{
this.AnzahlRaeder = anzahlDerReader;
}
public int AnzahlRaeder { get; protected set; }
}
}

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namespace FahrzeugDatenBank;
public class FahrzeugDTO
{
public int Id { get; set; }
public string? Name { get; set; }
public string? Typ { get; set; }
}

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<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>net9.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="MySqlConnector" Version="2.4.0" />
</ItemGroup>
</Project>

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using MySqlConnector;
namespace FahrzeugDatenBank;
public class FahrzeugRepository
{
private string _connectionString;
public FahrzeugRepository(string connectionString)
{
_connectionString = connectionString;
}
public List<FahrzeugDTO> HoleAlleFahrzeuge()
{
using var datenbankVerbindung = new MySqlConnection(_connectionString);
datenbankVerbindung.Open();
const string query = "SELECT id, fahrzeug_name, fahrzeug_typ FROM fahrzeuge";
using var kommando = new MySqlCommand(query, datenbankVerbindung);
var reader = kommando.ExecuteReader();
List<FahrzeugDTO> fahrzeugs = new();
while (reader.Read())
{
var fahrzeug = new FahrzeugDTO();
fahrzeug.Id = reader.GetInt32(0);
fahrzeug.Name = reader.GetString(1);
fahrzeug.Typ = reader.GetString(2);
fahrzeugs.Add(fahrzeug);
}
return fahrzeugs;
}
public void FuegeFahrzeugEin(string fahrzeugName, string fahrzeugTyp)
{
using var datenbankVerbindung = new MySqlConnection(_connectionString);
datenbankVerbindung.Open();
const string query = "INSERT INTO fahrzeuge (fahrzeug_name, fahrzeug_typ)" + "VALUES (@fahrzeug_name, @fahrzeug_typ);";
using var kommando = new MySqlCommand(query, datenbankVerbindung);
kommando.Parameters.AddWithValue("@fahrzeug_name", fahrzeugName);
kommando.Parameters.AddWithValue("@fahrzeug_typ", fahrzeugTyp);
kommando.ExecuteNonQuery();
}
}

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// This file is used by Code Analysis to maintain SuppressMessage
// attributes that are applied to this project.
// Project-level suppressions either have no target or are given
// a specific target and scoped to a namespace, type, member, etc.
using System.Diagnostics.CodeAnalysis;
[assembly: SuppressMessage("DocumentationHeader", "PropertyDocumentationHeader:The property must have a documentation header.", Justification = "<Ausstehend>", Scope = "module")]
[assembly: SuppressMessage("DocumentationHeader", "ConstructorDocumentationHeader:The constructor must have a documentation header.", Justification = "<Ausstehend>", Scope = "module")]
[assembly: SuppressMessage("DocumentationHeader", "MethodDocumentationHeader:The method must have a documentation header.", Justification = "<Ausstehend>", Scope = "module")]
[assembly: SuppressMessage("DocumentationHeader", "ConstFieldDocumentationHeader:The field must have a documentation header.", Justification = "<Ausstehend>", Scope = "module")]
[assembly: SuppressMessage("CodeQuality", "IDE0052:Ungelesene private Member entfernen", Justification = "<Ausstehend>", Scope = "module")]

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namespace FahrzeugDatenBank
{
public interface IAuftankbar
{
public void Auftanken();
}
}

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namespace FahrzeugDatenBank
{
public class KettenSaege : IAuftankbar
{
private bool istAufgetankt = false;
public void Auftanken()
{
this.istAufgetankt = true;
}
}
}

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namespace FahrzeugDatenBank
{
public class Motorrad : Fahrzeug, IAuftankbar
{
public Motorrad()
{
base.AnzahlRaeder = 2;
base.ReifenTyp = "schmal";
}
private bool istAufgetankt = false;
public void Auftanken()
{
this.istAufgetankt = true;
}
public override void WechsleReifenTyp()
{
if (base.ReifenTyp == "schmal")
{
base.ReifenTyp = "breit";
}
else
{
base.ReifenTyp = "schmal";
}
}
}
}
namespace FahrzeugDatenBank
{
public class Motorrad2 : Fahrzeug
{
public Motorrad2()
{
base.AnzahlRaeder = 2;
base.ReifenTyp = "schmal";
}
public override void WechsleReifenTyp()
{
if (base.ReifenTyp == "schmal")
{
base.ReifenTyp = "breit";
}
else
{
base.ReifenTyp = "schmal";
}
}
}
}

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namespace FahrzeugVerwaltung
{
public class Class1
{
}
}

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<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>net9.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
</PropertyGroup>
</Project>

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using FahrzeugDatenBank;
using FahrzeugeMVC.Models;
using Microsoft.AspNetCore.Mvc;
namespace FahrzeugeMVC.Controllers;
public class FahrzeugController : Controller
{
public IActionResult Index()
{
string connectionString = this.GetConnectionString();
var respsitory = new FahrzeugRepository(connectionString);
List<FahrzeugDTO>? fahrzeugs = respsitory.HoleAlleFahrzeuge();
var model = new FahrzeugListeModel(fahrzeugs);
return View(model);
}
public string GetConnectionString()
{
return "Server=localhost;User ID=admin;Password=admin;Database=FahrzeugDB";
}
[HttpGet]
public IActionResult Einfuegen()
{
var model = new FahrzeugEinfugenModel();
return View(model);
}
[HttpPost]
public IActionResult Einfuegen(FahrzeugEinfugenModel model)
{
if (ModelState.IsValid && !string.IsNullOrEmpty(model.Name) && !string.IsNullOrEmpty(model.Type))
{
string connectionString = this.GetConnectionString();
var repository = new FahrzeugRepository(connectionString);
repository.FuegeFahrzeugEin(model.Name, model.Type);
return RedirectToAction(nameof(Index));
}
else
{
return View(model);
}
}
}

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using FahrzeugeMVC.Models;
using Microsoft.AspNetCore.Mvc;
using System.Diagnostics;
namespace FahrzeugeMVC.Controllers
{
public class HomeController : Controller
{
private readonly ILogger<HomeController> _logger;
public HomeController(ILogger<HomeController> logger)
{
_logger = logger;
}
public IActionResult Index()
{
return View();
}
public IActionResult Privacy()
{
return View();
}
[ResponseCache(Duration = 0, Location = ResponseCacheLocation.None, NoStore = true)]
public IActionResult Error()
{
return View(new ErrorViewModel { RequestId = Activity.Current?.Id ?? HttpContext.TraceIdentifier });
}
}
}

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<Project Sdk="Microsoft.NET.Sdk.Web">
<PropertyGroup>
<TargetFramework>net9.0</TargetFramework>
<Nullable>enable</Nullable>
<ImplicitUsings>enable</ImplicitUsings>
</PropertyGroup>
<ItemGroup>
<ProjectReference Include="..\FahrzeugDatenBank\FahrzeugDatenBank.csproj" />
</ItemGroup>
</Project>

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namespace FahrzeugeMVC.Models
{
public class ErrorViewModel
{
public string? RequestId { get; set; }
public bool ShowRequestId => !string.IsNullOrEmpty(RequestId);
}
}

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using Microsoft.AspNetCore.Mvc.Rendering;
using System.ComponentModel.DataAnnotations;
namespace FahrzeugeMVC.Models;
public class FahrzeugEinfugenModel
{
[Required]
public string? Name { get; set; }
[Required]
public string? Type { get; set; }
public List<SelectListItem> FahrzeugTypen { get; private set; } = new()
{
new SelectListItem("Auto", "Auto", true),
new SelectListItem("Motorrad", "Motorrad"),
new SelectListItem("Fahrrad", "Fahrrad")
};
}

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using FahrzeugDatenBank;
namespace FahrzeugeMVC.Models;
public class FahrzeugListeModel
{
public FahrzeugListeModel(IEnumerable<FahrzeugDTO> fahrzeugs)
{
foreach (var fahrzeug in fahrzeugs)
{
switch (fahrzeug.Typ)
{
case "Auto":
var auto = new Auto()
{
Id = fahrzeug.Id,
Name = fahrzeug.Name,
};
this.Fahrzeuge.Add(auto);
break;
case "Motorrad":
var motorrad = new Motorrad()
{
Id = fahrzeug.Id,
Name = fahrzeug.Name,
};
this.Fahrzeuge.Add(motorrad);
break;
case "Fahrrad":
var fahrrad = new Fahrrad()
{
Id = fahrzeug.Id,
Name = fahrzeug.Name,
};
Fahrzeuge.Add(fahrrad);
break;
}
}
}
public List<Fahrzeug> Fahrzeuge { get; set; } = new();
}

29
FahrzeugeMVC/Program.cs Normal file
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var builder = WebApplication.CreateBuilder(args);
// Add services to the container.
builder.Services.AddControllersWithViews();
var app = builder.Build();
// Configure the HTTP request pipeline.
if (!app.Environment.IsDevelopment())
{
app.UseExceptionHandler("/Home/Error");
// The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
app.UseHsts();
}
app.UseHttpsRedirection();
app.UseRouting();
app.UseAuthorization();
app.MapStaticAssets();
app.MapControllerRoute(
name: "default",
pattern: "{controller=Home}/{action=Index}/{id?}")
.WithStaticAssets();
app.Run();

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{
"$schema": "https://json.schemastore.org/launchsettings.json",
"profiles": {
"http": {
"commandName": "Project",
"dotnetRunMessages": true,
"launchBrowser": true,
"applicationUrl": "http://localhost:5033",
"environmentVariables": {
"ASPNETCORE_ENVIRONMENT": "Development"
}
},
"https": {
"commandName": "Project",
"dotnetRunMessages": true,
"launchBrowser": true,
"applicationUrl": "https://localhost:7045;http://localhost:5033",
"environmentVariables": {
"ASPNETCORE_ENVIRONMENT": "Development"
}
}
}
}

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@model FahrzeugEinfugenModel
<p>Fügen sie ein neues Fahrzeug hinzu:</p>
<form asp-controller="Fahrzeug" asp-action="Einfuegen">
<div asp-validation-summary="ModelOnly" class="text-danger"></div>
<div>
<label class="control-label">Name</label>
<input asp-for="Name" class="form-control"/>
<span asp-validation-for="Name" class="text-danger"></span>
</div>
<div>
<label class="control-label">Type</label>
<select asp-for="Type" asp-items="Model.FahrzeugTypen" class="form-control"></select>
<span asp-validation-for="Type" class="text-danger"></span>
</div>
<br/>
<div class="form-group">
<input type="submit" value="Submit" class="btn bg-primary" />
</div>
</form>

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@model FahrzeugListeModel
<p>Diese Fahrzeuge befinden sich derzeit in der Datenbank:</p>
<table class="table table-hover mb-0">
<thead>
<tr>
<td>ID</td>
<td>Name</td>
<td>Type</td>
</tr>
</thead>
<tbody>
@foreach (var fahrzeug in Model.Fahrzeuge)
{
<tr>
<td>@fahrzeug.Id</td>
<td>@fahrzeug.Name</td>
<td>@fahrzeug.GetType()</td>
</tr>
}
</tbody>
</table>
<br/>
<p>
@Html.ActionLink("Neues Fahrzeug anlegen", "Einfuegen", "Fahrzeug")
</p>

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@{
ViewData["Title"] = "Home Page";
}
<div class="text-center">
<h1 class="display-4">Welcome</h1>
<p>Learn about <a href="https://learn.microsoft.com/aspnet/core">building Web apps with ASP.NET Core</a>.</p>
</div>

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@{
ViewData["Title"] = "Privacy Policy";
}
<h1>@ViewData["Title"]</h1>
<p>Use this page to detail your site's privacy policy.</p>

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@model ErrorViewModel
@{
ViewData["Title"] = "Error";
}
<h1 class="text-danger">Error.</h1>
<h2 class="text-danger">An error occurred while processing your request.</h2>
@if (Model.ShowRequestId)
{
<p>
<strong>Request ID:</strong> <code>@Model.RequestId</code>
</p>
}
<h3>Development Mode</h3>
<p>
Swapping to <strong>Development</strong> environment will display more detailed information about the error that occurred.
</p>
<p>
<strong>The Development environment shouldn't be enabled for deployed applications.</strong>
It can result in displaying sensitive information from exceptions to end users.
For local debugging, enable the <strong>Development</strong> environment by setting the <strong>ASPNETCORE_ENVIRONMENT</strong> environment variable to <strong>Development</strong>
and restarting the app.
</p>

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>@ViewData["Title"] - FahrzeugeMVC</title>
<script type="importmap"></script>
<link rel="stylesheet" href="~/lib/bootstrap/dist/css/bootstrap.min.css" />
<link rel="stylesheet" href="~/css/site.css" asp-append-version="true" />
<link rel="stylesheet" href="~/FahrzeugeMVC.styles.css" asp-append-version="true" />
</head>
<body>
<header>
<nav class="navbar navbar-expand-sm navbar-toggleable-sm navbar-light bg-white border-bottom box-shadow mb-3">
<div class="container-fluid">
<a class="navbar-brand" asp-area="" asp-controller="Home" asp-action="Index">FahrzeugeMVC</a>
<button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target=".navbar-collapse" aria-controls="navbarSupportedContent"
aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="navbar-collapse collapse d-sm-inline-flex justify-content-between">
<ul class="navbar-nav flex-grow-1">
<li class="nav-item">
<a class="nav-link text-dark" asp-area="" asp-controller="Home" asp-action="Index">Home</a>
</li>
<li class="nav-item">
<a class="nav-link text-dark" asp-area="" asp-controller="Home" asp-action="Privacy">Privacy</a>
</li>
<li class="nav-item">
<a class="nav-link text-dark" asp-area="" asp-controller="Fahrzeug" asp-action="Index">Fahrzeuge</a>
</li>
</ul>
</div>
</div>
</nav>
</header>
<div class="container">
<main role="main" class="pb-3">
@RenderBody()
</main>
</div>
<footer class="border-top footer text-muted">
<div class="container">
&copy; 2025 - FahrzeugeMVC - <a asp-area="" asp-controller="Home" asp-action="Privacy">Privacy</a>
</div>
</footer>
<script src="~/lib/jquery/dist/jquery.min.js"></script>
<script src="~/lib/bootstrap/dist/js/bootstrap.bundle.min.js"></script>
<script src="~/js/site.js" asp-append-version="true"></script>
@await RenderSectionAsync("Scripts", required: false)
</body>
</html>

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/* Please see documentation at https://learn.microsoft.com/aspnet/core/client-side/bundling-and-minification
for details on configuring this project to bundle and minify static web assets. */
a.navbar-brand {
white-space: normal;
text-align: center;
word-break: break-all;
}
a {
color: #0077cc;
}
.btn-primary {
color: #fff;
background-color: #1b6ec2;
border-color: #1861ac;
}
.nav-pills .nav-link.active, .nav-pills .show > .nav-link {
color: #fff;
background-color: #1b6ec2;
border-color: #1861ac;
}
.border-top {
border-top: 1px solid #e5e5e5;
}
.border-bottom {
border-bottom: 1px solid #e5e5e5;
}
.box-shadow {
box-shadow: 0 .25rem .75rem rgba(0, 0, 0, .05);
}
button.accept-policy {
font-size: 1rem;
line-height: inherit;
}
.footer {
position: absolute;
bottom: 0;
width: 100%;
white-space: nowrap;
line-height: 60px;
}

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<script src="~/lib/jquery-validation/dist/jquery.validate.min.js"></script>
<script src="~/lib/jquery-validation-unobtrusive/dist/jquery.validate.unobtrusive.min.js"></script>

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@using FahrzeugeMVC
@using FahrzeugeMVC.Models
@addTagHelper *, Microsoft.AspNetCore.Mvc.TagHelpers

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@{
Layout = "_Layout";
}

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{
"Logging": {
"LogLevel": {
"Default": "Information",
"Microsoft.AspNetCore": "Warning"
}
}
}

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{
"Logging": {
"LogLevel": {
"Default": "Information",
"Microsoft.AspNetCore": "Warning"
}
},
"AllowedHosts": "*"
}

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@@ -7,6 +7,10 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Ubung", "Ubung\Ubung.csproj
EndProject
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SQLMan", "SQLMan\SQLMan.csproj", "{EBEED711-090F-4441-B51E-94F492E920D2}"
EndProject
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "FahrzeugeMVC", "FahrzeugeMVC\FahrzeugeMVC.csproj", "{9E183977-78A1-40F3-87F9-130222AD8271}"
EndProject
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "FahrzeugDatenBank", "FahrzeugDatenBank\FahrzeugDatenBank.csproj", "{34C040B0-819F-4DF8-94FD-77A6A037F957}"
EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|Any CPU = Debug|Any CPU
@@ -21,6 +25,14 @@ Global
{EBEED711-090F-4441-B51E-94F492E920D2}.Debug|Any CPU.Build.0 = Debug|Any CPU
{EBEED711-090F-4441-B51E-94F492E920D2}.Release|Any CPU.ActiveCfg = Release|Any CPU
{EBEED711-090F-4441-B51E-94F492E920D2}.Release|Any CPU.Build.0 = Release|Any CPU
{9E183977-78A1-40F3-87F9-130222AD8271}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
{9E183977-78A1-40F3-87F9-130222AD8271}.Debug|Any CPU.Build.0 = Debug|Any CPU
{9E183977-78A1-40F3-87F9-130222AD8271}.Release|Any CPU.ActiveCfg = Release|Any CPU
{9E183977-78A1-40F3-87F9-130222AD8271}.Release|Any CPU.Build.0 = Release|Any CPU
{34C040B0-819F-4DF8-94FD-77A6A037F957}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
{34C040B0-819F-4DF8-94FD-77A6A037F957}.Debug|Any CPU.Build.0 = Debug|Any CPU
{34C040B0-819F-4DF8-94FD-77A6A037F957}.Release|Any CPU.ActiveCfg = Release|Any CPU
{34C040B0-819F-4DF8-94FD-77A6A037F957}.Release|Any CPU.Build.0 = Release|Any CPU
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE