chore: use nameof expression.

src/Shared/HandyControlDemo_Shared/UserControl/Basic/Avatar.xaml.cs

@@ -11,7 +11,7 @@ public partial class Avatar
     }
 
     public static readonly DependencyProperty SourceProperty = DependencyProperty.Register(
-        "Source", typeof(BitmapFrame), typeof(Avatar), new PropertyMetadata(default(BitmapFrame)));
+        nameof(Source), typeof(BitmapFrame), typeof(Avatar), new PropertyMetadata(default(BitmapFrame)));
 
     public BitmapFrame Source
     {
@@ -20,7 +20,7 @@ public partial class Avatar
     }
 
     public static readonly DependencyProperty UserNameProperty = DependencyProperty.Register(
-        "DisplayName", typeof(string), typeof(Avatar), new PropertyMetadata(default(string)));
+        nameof(DisplayName), typeof(string), typeof(Avatar), new PropertyMetadata(default(string)));
 
     public string DisplayName
     {
@@ -29,7 +29,7 @@ public partial class Avatar
     }
 
     public static readonly DependencyProperty LinkProperty = DependencyProperty.Register(
-        "Link", typeof(string), typeof(Avatar), new PropertyMetadata(default(string)));
+        nameof(Link), typeof(string), typeof(Avatar), new PropertyMetadata(default(string)));
 
     public string Link
     {

src/Shared/HandyControlDemo_Shared/UserControl/Basic/GeometryItem.xaml.cs

@@ -8,7 +8,7 @@ public partial class GeometryItem
     public GeometryItem() => InitializeComponent();
 
     public static readonly DependencyProperty InfoProperty = DependencyProperty.Register(
-        "Info", typeof(GeometryItemModel), typeof(GeometryItem), new PropertyMetadata(default(GeometryItemModel)));
+        nameof(Info), typeof(GeometryItemModel), typeof(GeometryItem), new PropertyMetadata(default(GeometryItemModel)));
 
     public GeometryItemModel Info
     {

src/Shared/HandyControlDemo_Shared/UserControl/Controls/ProgressButtonDemoCtl.xaml.cs

@@ -7,7 +7,7 @@ namespace HandyControlDemo.UserControl;
 public partial class ProgressButtonDemoCtl
 {
     public static readonly DependencyProperty ProgressProperty = DependencyProperty.Register(
-        "Progress", typeof(int), typeof(ProgressButtonDemoCtl), new PropertyMetadata(default(int)));
+        nameof(Progress), typeof(int), typeof(ProgressButtonDemoCtl), new PropertyMetadata(default(int)));
 
     public int Progress
     {
@@ -16,7 +16,7 @@ public partial class ProgressButtonDemoCtl
     }
 
     public static readonly DependencyProperty IsUploadingProperty = DependencyProperty.Register(
-        "IsUploading", typeof(bool), typeof(ProgressButtonDemoCtl), new PropertyMetadata(default(bool)));
+        nameof(IsUploading), typeof(bool), typeof(ProgressButtonDemoCtl), new PropertyMetadata(default(bool)));
 
     public bool IsUploading
     {

src/Shared/HandyControlDemo_Shared/UserControl/Controls/PropertyGridDemoCtl.xaml.cs

@@ -20,7 +20,7 @@ public partial class PropertyGridDemoCtl
     }
 
     public static readonly DependencyProperty DemoModelProperty = DependencyProperty.Register(
-        "DemoModel", typeof(PropertyGridDemoModel), typeof(PropertyGridDemoCtl), new PropertyMetadata(default(PropertyGridDemoModel)));
+        nameof(DemoModel), typeof(PropertyGridDemoModel), typeof(PropertyGridDemoCtl), new PropertyMetadata(default(PropertyGridDemoModel)));
 
     public PropertyGridDemoModel DemoModel
     {

src/Shared/HandyControlDemo_Shared/Window/AboutWindow.xaml.cs

@@ -15,7 +15,7 @@ public partial class AboutWindow
     }
 
     public static readonly DependencyProperty CopyRightProperty = DependencyProperty.Register(
-        "CopyRight", typeof(string), typeof(AboutWindow), new PropertyMetadata(default(string)));
+        nameof(CopyRight), typeof(string), typeof(AboutWindow), new PropertyMetadata(default(string)));
 
     public string CopyRight
     {
@@ -24,7 +24,7 @@ public partial class AboutWindow
     }
 
     public static readonly DependencyProperty VersionProperty = DependencyProperty.Register(
-        "Version", typeof(string), typeof(AboutWindow), new PropertyMetadata(default(string)));
+        nameof(Version), typeof(string), typeof(AboutWindow), new PropertyMetadata(default(string)));
 
     public string Version
     {

src/Shared/HandyControlDemo_Shared/Window/DialogDemoWindow.xaml.cs

@@ -17,7 +17,7 @@ public partial class DialogDemoWindow
     }
 
     public static readonly DependencyProperty DialogTokenProperty = DependencyProperty.Register(
-        "DialogToken", typeof(string), typeof(DialogDemoWindow), new PropertyMetadata(default(string)));
+        nameof(DialogToken), typeof(string), typeof(DialogDemoWindow), new PropertyMetadata(default(string)));
 
     public string DialogToken
     {