Added Slop

Views/DeductionSearchDialog.axaml.cs

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+using Avalonia.Controls;
+using Avalonia.Input;
+using Lagerprogramm.Models;
+using Lagerprogramm.ViewModels;
+using System.Collections.ObjectModel;
+using System.Threading.Tasks;
+
+namespace Lagerprogramm.Views;
+
+public partial class DeductionSearchDialog : Window
+{
+    public Deduction? SelectedDeduction { get; private set; }
+
+    public DeductionSearchDialog()
+    {
+        InitializeComponent();
+        KeyDown += OnKeyDown;
+    }
+
+    public async Task<Deduction?> ShowDeductionSearch(ObservableCollection<Deduction> deductions, Window parent)
+    {
+        SelectedDeduction = null;
+        var viewModel = new DeductionSearchDialogViewModel(deductions);
+        DataContext = viewModel;
+        await ShowDialog(parent);
+        return SelectedDeduction;
+    }
+
+    private void OnDoubleTapped(object? sender, TappedEventArgs e)
+    {
+        if (DeductionListBox.SelectedItem is Deduction deduction)
+        {
+            SelectedDeduction = deduction;
+            Close();
+        }
+    }
+
+    private void OnKeyDown(object? sender, KeyEventArgs e)
+    {
+        if (e.Key == Key.Enter && DeductionListBox.SelectedItem is Deduction deduction)
+        {
+            SelectedDeduction = deduction;
+            Close();
+        }
+    }
+}