优化更新代码，添加界面功能并整合

WPFluent/Layout/Grid.cs

@@ -0,0 +1,193 @@
+using System;
+using System.ComponentModel;
+using System.Globalization;
+using System.Reflection;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Markup;
+
+namespace WPFluent.Layout;
+
+[ContentProperty(nameof(Children))]
+public class Grid : System.Windows.Controls.Grid
+{
+    public static readonly DependencyProperty ColumnDefinitionsProperty =
+          DependencyProperty.Register(nameof(ColumnDefinitions), typeof(ColumnDefinitionCollection), typeof(Grid), new PropertyMetadata(null, OnColumnDefinitionsChanged));
+
+    [TypeConverter(typeof(ColumnDefinitionsConverter))]
+    public new ColumnDefinitionCollection ColumnDefinitions
+    {
+        get => base.ColumnDefinitions;
+        set => SetValue(ColumnDefinitionsProperty, value);
+    }
+
+    private static void OnColumnDefinitionsChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
+    {
+        if (d is Grid grid && e.NewValue is ColumnDefinitionCollection columnDefinitions)
+        {
+            grid.UpdateColumnDefinitions(columnDefinitions);
+        }
+    }
+
+    private void UpdateColumnDefinitions(ColumnDefinitionCollection columnDefinitions)
+    {
+        base.ColumnDefinitions.Clear();
+        foreach (ColumnDefinition columnDefinition in columnDefinitions)
+        {
+            base.ColumnDefinitions.Add(new ColumnDefinition { Width = columnDefinition.Width });
+        }
+    }
+
+    public static readonly DependencyProperty RowDefinitionsProperty =
+          DependencyProperty.Register(nameof(RowDefinitions), typeof(RowDefinitionCollection), typeof(Grid), new PropertyMetadata(null, OnRowDefinitionsChanged));
+
+    [TypeConverter(typeof(RowDefinitionsConverter))]
+    public new RowDefinitionCollection RowDefinitions
+    {
+        get => base.RowDefinitions;
+        set => SetValue(RowDefinitionsProperty, value);
+    }
+
+    private static void OnRowDefinitionsChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
+    {
+        if (d is Grid grid && e.NewValue is RowDefinitionCollection rowDefinitions)
+        {
+            grid.UpdateRowDefinitions(rowDefinitions);
+        }
+    }
+
+    private void UpdateRowDefinitions(RowDefinitionCollection rowDefinitions)
+    {
+        base.RowDefinitions.Clear();
+        foreach (RowDefinition rowDefinition in rowDefinitions)
+        {
+            base.RowDefinitions.Add(new RowDefinition { Height = rowDefinition.Height });
+        }
+    }
+}
+
+internal sealed class ColumnDefinitionsConverter : TypeConverter
+{
+    public override bool CanConvertFrom(ITypeDescriptorContext? context, Type sourceType)
+    {
+        return sourceType == typeof(ColumnDefinitionCollection) || base.CanConvertFrom(context, sourceType);
+    }
+
+    public override object? ConvertFrom(ITypeDescriptorContext? context, CultureInfo? culture, object value)
+    {
+        bool hotReload = false;
+
+        try
+        {
+            if (value is string strValue)
+            {
+                System.Windows.Controls.Grid _grid = null!;
+
+                if (context is IProvideValueTarget target)
+                {
+                    _grid = (System.Windows.Controls.Grid)target.TargetObject;
+                }
+                else
+                {
+                    // Support for Hot Reload (WpfVisualTreeService.LiveMarkup.TapTypeDescriptorContext).
+                    _grid = new System.Windows.Controls.Grid();
+                    hotReload = true;
+                }
+
+                ColumnDefinitionCollection columnDefinitions = (ColumnDefinitionCollection)Activator.CreateInstance(
+                    typeof(ColumnDefinitionCollection),
+                    BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.OptionalParamBinding,
+                    null!,
+                    [_grid],
+                    null!)!;
+                GridLengthConverter converter = new();
+                string[] definitions = strValue.Split(',');
+
+                foreach (string definition in definitions)
+                {
+                    GridLength gridLength = (GridLength)converter.ConvertFromString(definition.Trim())!;
+                    columnDefinitions.Add(new ColumnDefinition { Width = gridLength });
+                }
+
+                return columnDefinitions;
+            }
+            else if (value is ColumnDefinitionCollection columnDefinitions)
+            {
+                return columnDefinitions;
+            }
+        }
+        catch (Exception e)
+        {
+            if (!hotReload)
+            {
+                throw new InvalidOperationException($"Invalid ColumnDefinitions value \"{value}\".{Environment.NewLine}" + e);
+            }
+            return DependencyProperty.UnsetValue;
+        }
+
+        return base.ConvertFrom(context, culture, value);
+    }
+}
+
+internal sealed class RowDefinitionsConverter : TypeConverter
+{
+    public override bool CanConvertFrom(ITypeDescriptorContext? context, Type sourceType)
+    {
+        return sourceType == typeof(RowDefinitionCollection) || base.CanConvertFrom(context, sourceType);
+    }
+
+    public override object? ConvertFrom(ITypeDescriptorContext? context, CultureInfo? culture, object value)
+    {
+        bool hotReload = false;
+
+        try
+        {
+            if (value is string strValue)
+            {
+                System.Windows.Controls.Grid _grid = null!;
+
+                if (context is IProvideValueTarget target)
+                {
+                    _grid = (System.Windows.Controls.Grid)target.TargetObject;
+                }
+                else
+                {
+                    // Support for Hot Reload (WpfVisualTreeService.LiveMarkup.TapTypeDescriptorContext).
+                    _grid = new System.Windows.Controls.Grid();
+                    hotReload = true;
+                }
+
+                RowDefinitionCollection rowDefinitions = (RowDefinitionCollection)Activator.CreateInstance(
+                    typeof(RowDefinitionCollection),
+                    BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.OptionalParamBinding,
+                    null!,
+                    [_grid],
+                    null!)!;
+                GridLengthConverter converter = new();
+                string[] definitions = strValue.Split(',');
+
+                foreach (string definition in definitions)
+                {
+                    GridLength gridLength = (GridLength)converter.ConvertFromString(definition.Trim())!;
+                    rowDefinitions.Add(new RowDefinition { Height = gridLength });
+                }
+
+                return rowDefinitions;
+            }
+            else if (value is RowDefinitionCollection rowDefinitions)
+            {
+                return rowDefinitions;
+            }
+        }
+        catch (Exception e)
+        {
+            if (!hotReload)
+            {
+                throw new InvalidOperationException($"Invalid RowDefinitions value \"{value}\".{Environment.NewLine}" + e);
+            }
+            return DependencyProperty.UnsetValue;
+        }
+
+        return base.ConvertFrom(context, culture, value);
+    }
+}