[ImageResizer]Fix combo boxes bindings to hide height for percent(#31332)

* [ImageResizer] Fix combo boxes bindings

* Fix exception

src/modules/imageresizer/ui/App.xaml

@@ -18,6 +18,7 @@
             <v:AutoDoubleConverter x:Key="AutoDoubleConverter" />
             <v:BoolValueConverter x:Key="BoolValueConverter" />
             <v:VisibilityBoolConverter x:Key="VisibilityBoolConverter" />
+            <v:EnumToIntConverter x:Key="EnumToIntConverter" />
         </ResourceDictionary>
     </Application.Resources>
 </Application>

src/modules/imageresizer/ui/Views/EnumToIntConverter.cs

@@ -0,0 +1,21 @@
+// Copyright (c) Brice Lambson
+// The Brice Lambson licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.  Code forked from Brice Lambson's https://github.com/bricelam/ImageResizer/
+
+using System;
+using System.Globalization;
+using System.Windows;
+using System.Windows.Data;
+
+namespace ImageResizer.Views
+{
+    [ValueConversion(typeof(Enum), typeof(int))]
+    internal class EnumToIntConverter : IValueConverter
+    {
+        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+            => (int)value;
+
+        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+            => targetType.GetEnumValues().GetValue((int)value);
+    }
+}

src/modules/imageresizer/ui/Views/EnumValueConverter.cs

@@ -16,6 +16,11 @@ namespace ImageResizer.Views
         public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
         {
             var type = value?.GetType();
+            if (!type.IsEnum)
+            {
+                return value;
+            }
+
             var builder = new StringBuilder();
 
             builder

src/modules/imageresizer/ui/Views/InputPage.xaml

@@ -179,9 +179,9 @@
                     HorizontalAlignment="Stretch"
                     AutomationProperties.Name="{x:Static p:Resources.Resize_Type}"
                     ItemsSource="{Binding ResizeFitValues, Mode=OneWay}"
-                    SelectedIndex="0">
+                    SelectedIndex="{Binding ElementName=SizeComboBox, Path=SelectedValue.Fit, Mode=TwoWay, Converter={StaticResource EnumToIntConverter}}">
                     <ComboBox.ItemTemplate>
-                        <DataTemplate DataType="sys:Enum">
+                        <DataTemplate DataType="{x:Type m:ResizeFit}">
                             <TextBlock
                                 Margin="4,0,0,0"
                                 FontSize="14"
@@ -206,9 +206,9 @@
                     Grid.Column="4"
                     AutomationProperties.Name="{x:Static p:Resources.Unit}"
                     ItemsSource="{Binding ResizeUnitValues, Mode=OneWay}"
-                    SelectedIndex="0">
+                    SelectedIndex="{Binding ElementName=SizeComboBox, Path=SelectedValue.Unit, Mode=TwoWay, Converter={StaticResource EnumToIntConverter}}">
                     <ComboBox.ItemTemplate>
-                        <DataTemplate DataType="sys:Enum">
+                        <DataTemplate DataType="{x:Type m:ResizeUnit}">
                             <TextBlock
                                 Margin="4,0,0,0"
                                 FontSize="14"