Many nice features

MaterialModernWPF/Service/AdditionalMoments.cs

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+using System;
+using Prism.Events;
+
+namespace MaterialModernWPF.Service
+{
+    public class AdditionalMoments : CalculationPackage
+    {
+        public AdditionalMoments(IEventAggregator eventAggregator) : base(eventAggregator)
+        {
+            Name = "Additional moments";
+            CalculationViewType = typeof(DetailedGeometryView);
+        }
+
+        public override string Name { get; }
+        public override Type CalculationViewType { get; }
+    }
+}

MaterialModernWPF/Service/CalculationPackage.cs

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+using System;
+using System.Windows.Controls;
+using Prism.Events;
+
+namespace MaterialModernWPF.Service
+{
+    public abstract class CalculationPackage
+    {
+        private readonly IEventAggregator _eventAggregator;
+        private bool _isSelected;
+
+        public CalculationPackage(IEventAggregator eventAggregator)
+        {
+            _eventAggregator = eventAggregator;
+        }
+
+        public abstract string Name { get; }
+
+        public bool IsSelected
+        {
+            get => _isSelected;
+            set
+            {
+                if (Equals(_isSelected, value)) return;
+                _isSelected = value;
+                _eventAggregator.GetEvent<CalculationPackageSelectionChangedEvent>().Publish((this, value));
+            }
+        }
+
+        public abstract Type CalculationViewType { get; }
+    }
+
+    public class CalculationView : UserControl
+    {
+
+    }
+}

MaterialModernWPF/Service/CalculationPackageContainer.cs

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+using System.Linq;
+using DryIoc;
+using Prism.Events;
+using Prism.Regions;
+
+namespace MaterialModernWPF.Service
+{
+    public class CalculationPackageContainer
+    {
+        private readonly IRegionManager _regionManager;
+        private readonly IResolver _resolver;
+        public CalculationPackage[] CalculationPackages { get; }
+
+        public CalculationPackageContainer(
+            IEventAggregator eventAggregator, IRegionManager regionManager,
+            IResolver resolver)
+        {
+            _regionManager = regionManager;
+            _resolver = resolver;
+            CalculationPackages = resolver.ResolveMany<CalculationPackage>().ToArray();
+            eventAggregator.GetEvent<CalculationPackageSelectionChangedEvent>().Subscribe(SelectionChanged);
+        }
+
+        private void SelectionChanged((CalculationPackage sender, bool isSelected) payload)
+        {
+            var viewKey = payload.sender.CalculationViewType.FullName;
+            var region = _regionManager.Regions[Constants.PackagesRegion];
+            if (payload.isSelected)
+            {
+                var view = _resolver.Resolve(payload.sender.CalculationViewType);
+                region.Add(view, viewKey);
+            }
+            else
+            {
+                var view = region.GetView(viewKey);
+                region.Remove(view);
+            }
+        }
+    }
+}

MaterialModernWPF/Service/CalculationPackageSelectionChangedEvent.cs

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+using Prism.Events;
+
+namespace MaterialModernWPF.Service
+{
+    public class CalculationPackageSelectionChangedEvent : PubSubEvent<(CalculationPackage, bool)>
+    {
+
+    }
+}

MaterialModernWPF/Service/DetailedGeometryPackage.cs

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+using System;
+using Prism.Events;
+
+namespace MaterialModernWPF.Service
+{
+    public class DetailedGeometryPackage : CalculationPackage
+    {
+        public DetailedGeometryPackage(IEventAggregator eventAggregator) : base(eventAggregator)
+        {
+            Name = "Detailed Geometry";
+            CalculationViewType = typeof(DetailedGeometryView);
+        }
+
+        public override string Name { get; }
+        public override Type CalculationViewType { get; }
+    }
+}

MaterialModernWPF/Service/DetailedGeometryView.xaml

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+<local:CalculationView
+    x:Class="MaterialModernWPF.Service.DetailedGeometryView"
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+    xmlns:local="clr-namespace:MaterialModernWPF.Service"
+    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+    d:DesignHeight="450"
+    d:DesignWidth="800"
+    mc:Ignorable="d">
+    <GroupBox Margin="10" Header="Detailed Geometry">
+        <TextBlock FontSize="100" Text="Hallo Welt" />
+    </GroupBox>
+</local:CalculationView>

MaterialModernWPF/Service/DetailedGeometryView.xaml.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Navigation;
+using System.Windows.Shapes;
+
+namespace MaterialModernWPF.Service
+{
+    /// <summary>
+    /// Interaktionslogik für DetailedGeometryView.xaml
+    /// </summary>
+    public partial class DetailedGeometryView : CalculationView
+    {
+        public DetailedGeometryView()
+        {
+            InitializeComponent();
+        }
+    }
+}