More work

Hyperbar.UI.Windows/GridExtension.cs

@@ -0,0 +1,46 @@
+using Microsoft.UI.Xaml;
+using Microsoft.UI.Xaml.Controls;
+using Microsoft.UI.Xaml.Data;
+
+namespace Hyperbar.UI.Windows;
+
+public class GridExtension
+{
+    public static readonly DependencyProperty GridColumnBindingPathProperty =
+        DependencyProperty.RegisterAttached("GridColumnBindingPath", 
+            typeof(string), typeof(GridExtension),
+                new PropertyMetadata(null, OnGridBindingPathPropertyChanged));
+
+    public static readonly DependencyProperty GridRowBindingPathProperty =
+        DependencyProperty.RegisterAttached("GridRowBindingPath", 
+            typeof(string), typeof(GridExtension),
+                new PropertyMetadata(null, OnGridBindingPathPropertyChanged));
+
+    public static string GetGridColumnBindingPath(DependencyObject dependencyObject) => 
+        (string)dependencyObject.GetValue(GridColumnBindingPathProperty);
+
+    public static string GetGridRowBindingPath(DependencyObject dependencyObject) =>
+        (string)dependencyObject.GetValue(GridRowBindingPathProperty);
+
+    public static void SetGridColumnBindingPath(DependencyObject dependencyObject, string value) =>
+            dependencyObject.SetValue(GridColumnBindingPathProperty, value);
+    public static void SetGridRowBindingPath(DependencyObject dependencyObject, string value) =>
+        dependencyObject.SetValue(GridRowBindingPathProperty, value);
+
+    private static void OnGridBindingPathPropertyChanged(DependencyObject dependencyObject, 
+        DependencyPropertyChangedEventArgs args)
+    {
+        if (args.NewValue is string propertyPath)
+        {
+            DependencyProperty gridProperty =
+                args.Property == GridColumnBindingPathProperty
+                ? Grid.ColumnProperty
+                : Grid.RowProperty;
+
+            BindingOperations.SetBinding(
+                dependencyObject,
+                gridProperty,
+                new Binding { Path = new PropertyPath(propertyPath) });
+        }
+    }
+}

Hyperbar.UI.Windows/TemplateGenerator.cs

@@ -11,12 +11,10 @@ public class TemplateGenerator : DataTemplateSelector
         string xamlString = @"
                 <DataTemplate xmlns=""http://schemas.microsoft.com/winfx/2006/xaml/presentation""
                                 xmlns:ui=""using:Hyperbar.UI.Windows"">
-                    <Grid>
-                        <ui:TemplateGeneratorControl  VerticalContentAlignment=""Stretch""
-                            HorizontalContentAlignment=""Stretch"" 
-                            HorizontalAlignment=""Stretch"" 
-                            VerticalAlignment=""Stretch""/>
-                    </Grid>
+                      <ui:TemplateGeneratorControl VerticalContentAlignment=""Stretch""
+                                            HorizontalContentAlignment=""Stretch"" 
+                                            HorizontalAlignment=""Stretch"" 
+                                            VerticalAlignment=""Stretch""/>
                 </DataTemplate>";
 
         return (DataTemplate)XamlReader.Load(xamlString);
@@ -27,12 +25,10 @@ public class TemplateGenerator : DataTemplateSelector
         string xamlString = @"
                 <DataTemplate xmlns=""http://schemas.microsoft.com/winfx/2006/xaml/presentation""
                                 xmlns:ui=""using:Hyperbar.UI.Windows"">
-                    <Grid>
-                        <ui:TemplateGeneratorControl  VerticalContentAlignment=""Stretch""
-                            HorizontalContentAlignment=""Stretch"" 
-                            HorizontalAlignment=""Stretch"" 
-                            VerticalAlignment=""Stretch""/>
-                    </Grid>
+                      <ui:TemplateGeneratorControl  VerticalContentAlignment=""Stretch""
+                                        HorizontalContentAlignment=""Stretch"" 
+                                        HorizontalAlignment=""Stretch"" 
+                                        VerticalAlignment=""Stretch""/>
                 </DataTemplate>";
 
         return (DataTemplate)XamlReader.Load(xamlString);

Hyperbar.UI.Windows/TemplateGeneratorControl.cs

@@ -11,7 +11,8 @@ public class TemplateGeneratorControl :
         DataContextChanged += OnDataContextChanged;
     }
 
-    private void OnDataContextChanged(FrameworkElement sender, DataContextChangedEventArgs args)
+    private void OnDataContextChanged(FrameworkElement sender, 
+        DataContextChangedEventArgs args)
     {
         if (DataContext is ITemplatedViewModel templatedViewModel)
         {