Fix Numerbox conversion

StabilityMatrix/Converters/IntDoubleConverter.cs

@@ -7,10 +7,14 @@ namespace StabilityMatrix.Converters;
 public class IntDoubleConverter : IValueConverter
 {
     // Convert from int to double
-    public object Convert(object? value, Type targetType, object parameter, CultureInfo culture)
+    public object? Convert(object? value, Type targetType, object parameter, CultureInfo culture)
-    {
+    {   
         if (targetType == typeof(double?))
         {
+            if (value == null)
+            {
+                return null;
+            }
             return System.Convert.ToDouble(value);
         }
 
@@ -22,7 +26,7 @@ public class IntDoubleConverter : IValueConverter
     {
         if (targetType == typeof(int?))
         {
-            return System.Convert.ToInt64(value);
+            return System.Convert.ToInt32(value);
         }
 
         throw new ArgumentException($"Unsupported type {targetType}");

StabilityMatrix/Converters/LaunchOptionConverter.cs

@@ -6,7 +6,7 @@ namespace StabilityMatrix.Converters;
 
 public class LaunchOptionConverter : IValueConverter
 {
-    public object Convert(object? value, Type targetType, object parameter, CultureInfo culture)
+    public object? Convert(object? value, Type targetType, object parameter, CultureInfo culture)
     {
         if (targetType == typeof(string))
         {
@@ -20,11 +20,19 @@ public class LaunchOptionConverter : IValueConverter
 
         if (targetType == typeof(double?))
         {
+            if (value == null)
+            {
+                return null;
+            }
             return double.TryParse(value?.ToString(), out var doubleValue) ? doubleValue : 0;
         }
         
         if (targetType == typeof(int?))
         {
+            if (value == null)
+            {
+                return null;
+            }
             return int.TryParse(value?.ToString(), out var intValue) ? intValue : 0;
         }
 

StabilityMatrix/Converters/LaunchOptionIntDoubleConverter.cs

@@ -0,0 +1,34 @@
+using System;
+using System.Globalization;
+using System.Windows.Data;
+
+namespace StabilityMatrix.Converters;
+
+public class LaunchOptionIntDoubleConverter : IValueConverter
+{
+    // Convert from int to double
+    public object? Convert(object? value, Type targetType, object parameter, CultureInfo culture)
+    {   
+        if (targetType == typeof(double?))
+        {
+            if (value == null)
+            {
+                return null;
+            }
+            return System.Convert.ToDouble(value);
+        }
+
+        throw new ArgumentException($"Unsupported type {targetType}");
+    }
+
+    // Convert from double to object int (floor)
+    public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+    {
+        if (targetType == typeof(int?) || targetType == typeof(object))
+        {
+            return System.Convert.ToInt32(value);
+        }
+
+        throw new ArgumentException($"Unsupported type {targetType}");
+    }
+}

StabilityMatrix/LaunchOptionsDialog.xaml

@@ -1,13 +1,13 @@
 <ui:ContentDialog
     CloseButtonText="Close"
+    DialogHeight="512"
+    DialogWidth="640"
     Loaded="LaunchOptionsDialog_OnLoaded"
     Title="Launch Options"
     d:DataContext="{d:DesignInstance Type=viewModels:LaunchOptionsDialogViewModel,
                                      IsDesignTimeCreatable=True}"
     d:DesignHeight="512"
     d:DesignWidth="512"
-    DialogHeight="512"
-    DialogWidth="640"
     mc:Ignorable="d"
     ui:Design.Background="{DynamicResource ApplicationBackgroundBrush}"
     ui:Design.Foreground="{DynamicResource TextFillColorPrimaryBrush}"
@@ -27,9 +27,10 @@
         <Style BasedOn="{StaticResource {x:Type ui:ContentDialog}}" TargetType="{x:Type local:LaunchOptionsDialog}" />
 
         <converters:LaunchOptionConverter x:Key="LaunchOptionConverter" />
-        <converters:ValueConverterGroup x:Key="LaunchOptionIntToDoubleConverter">
+        <converters:LaunchOptionIntDoubleConverter x:Key="LaunchOptionIntDoubleConverter" />
+        <converters:ValueConverterGroup x:Key="LaunchOptionIntToStringConverter">
             <converters:LaunchOptionConverter />
-            <converters:IntDoubleConverter />
+            <converters:LaunchOptionIntDoubleConverter />
         </converters:ValueConverterGroup>
 
         <!--  Bool type card (checkboxes)  -->
@@ -43,8 +44,8 @@
                         FontSize="16"
                         FontWeight="Bold"
                         Margin="0,8"
-                        TextWrapping="Wrap"
+                        Text="{Binding Title}"
-                        Text="{Binding Title}" />
+                        TextWrapping="Wrap" />
                     <StackPanel Orientation="Horizontal">
                         <ItemsControl ItemsSource="{Binding Options}">
                             <ItemsControl.ItemTemplate>
@@ -69,8 +70,8 @@
                         FontSize="16"
                         FontWeight="Bold"
                         Margin="0,8"
-                        TextWrapping="Wrap"
+                        Text="{Binding Title}"
-                        Text="{Binding Title}" />
+                        TextWrapping="Wrap" />
                     <ItemsControl ItemsSource="{Binding Options}">
                         <ItemsControl.ItemTemplate>
                             <DataTemplate>
@@ -102,8 +103,8 @@
                         FontSize="16"
                         FontWeight="Bold"
                         Margin="0,8"
-                        TextWrapping="Wrap"
+                        Text="{Binding Title}"
-                        Text="{Binding Title}" />
+                        TextWrapping="Wrap" />
                     <ItemsControl ItemsSource="{Binding Options}">
                         <ItemsControl.ItemTemplate>
                             <DataTemplate>
@@ -112,7 +113,9 @@
                                     <ui:NumberBox
                                         HorizontalAlignment="Stretch"
                                         Margin="8"
-                                        Value="{Binding OptionValue, Converter={StaticResource LaunchOptionIntToDoubleConverter}}"
+                                        PlaceholderText="{Binding DefaultValue, Mode=OneWay, Converter={StaticResource LaunchOptionConverter}}"
+                                        ValidationMode="InvalidInputOverwritten"
+                                        Value="{Binding OptionValue, Converter={StaticResource LaunchOptionIntDoubleConverter}, Mode=TwoWay}"
                                         VerticalAlignment="Stretch" />
                                 </StackPanel>
                             </DataTemplate>