feat: remove more warnings.

Ursa.sln.DotSettings

@@ -0,0 +1,2 @@
+<wpf:ResourceDictionary xml:space="preserve" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:s="clr-namespace:System;assembly=mscorlib" xmlns:ss="urn:shemas-jetbrains-com:settings-storage-xaml" xmlns:wpf="http://schemas.microsoft.com/winfx/2006/xaml/presentation">
+	<s:Boolean x:Key="/Default/UserDictionary/Words/=axaml/@EntryIndexedValue">True</s:Boolean></wpf:ResourceDictionary>

demo/Ursa.PrismDialogDemo/MainWindow.axaml.cs

@@ -22,7 +22,7 @@ public partial class MainWindow : Window
     }
 
     // ReSharper disable once UnusedParameter.Local
-    private void OverlayDialogButton_OnClick(object? sender, RoutedEventArgs e)
+    private void OverlayDialogButton_OnClick(object? sender, RoutedEventArgs _)
     {
         _overlayDialogService.ShowModal("Default", null, null, new OverlayDialogOptions()
         {
@@ -31,7 +31,7 @@ public partial class MainWindow : Window
     }
 
     // ReSharper disable once UnusedParameter.Local
-    private void AloneDialogButton_OnClick(object? sender, RoutedEventArgs e)
+    private void AloneDialogButton_OnClick(object? sender, RoutedEventArgs _)
     {
         _aloneDialogService.ShowModal("Default", null, null, new DialogOptions()
         {
@@ -40,7 +40,7 @@ public partial class MainWindow : Window
     }
 
     // ReSharper disable once UnusedParameter.Local
-    private void DrawerButton_OnClick(object? sender, RoutedEventArgs e)
+    private void DrawerButton_OnClick(object? sender, RoutedEventArgs _)
     {
         _drawerService.ShowModal("Default", null, null, new DrawerOptions()
         {

src/Ursa/Controls/ControlClassesInput/ControlClassesInput.cs

@@ -139,11 +139,12 @@ public class ControlClassesInput: TemplatedControl
     public void UnDo()
     {
         var node = _history.Last;
+        if (node is null) return;
         _history.RemoveLast();
-        _undoHistory.AddFirst(node);
+        _undoHistory.AddFirst(node.Value);
         _disableHistory = true;
         TargetClasses?.Clear();
-        foreach (var value in _history.Last.Value)
+        foreach (var value in node.Value)
         {
             TargetClasses?.Add(value);
         }
@@ -154,11 +155,12 @@ public class ControlClassesInput: TemplatedControl
     public void Redo()
     {
         var node = _undoHistory.First;
+        if (node is null) return;
         _undoHistory.RemoveFirst();
         _history.AddLast(node);
         _disableHistory = true;
         TargetClasses?.Clear();
-        foreach (var value in _history.Last.Value)
+        foreach (var value in node.Value)
         {
             TargetClasses?.Add(value);
         }
@@ -168,6 +170,6 @@ public class ControlClassesInput: TemplatedControl
 
     public void Clear()
     {
-        SaveHistory(new List<string>(), false);
+        SaveHistory([], false);
     }
 }

src/Ursa/Controls/DateTimePicker/CalendarView.cs

@@ -260,10 +260,7 @@ public class CalendarView : TemplatedControl
             ContextDate = ContextDate.With(startYear: range.start, endYear: range.end);
             _dateContextSyncing = false;
             UpdateYearButtons();
-            return;
         }
-
-        if (Mode == CalendarViewMode.Century) return;
     }
 
     /// <summary>

src/Ursa/Controls/DateTimePicker/DateRangePicker.cs

@@ -310,7 +310,7 @@ public class DateRangePicker : DatePickerBase, IClearControl
 
     private void OnTextChangedInternal(TextBox? textBox, AvaloniaProperty property, bool fromText = false)
     {
-        if (string.IsNullOrEmpty(textBox?.Text))
+        if (textBox?.Text is null || string.IsNullOrEmpty(textBox.Text))
         {
             SetCurrentValue(property, null);
             _startCalendar?.ClearSelection();

src/Ursa/Controls/IPv4Box.cs

@@ -132,11 +132,7 @@ public class IPv4Box: TemplatedControl
     
     protected override void OnKeyDown(KeyEventArgs e)
     {
-        if (_currentActivePresenter is null)
+        _currentActivePresenter ??= _presenters[0];
-        {
-            _currentActivePresenter = _presenters[0];
-        }
-        
         var keymap = TopLevel.GetTopLevel(this)?.PlatformSettings?.HotkeyConfiguration;
         bool Match(List<KeyGesture> gestures) => gestures.Any(g => g.Matches(e));
         if (e.Key is Key.Enter or Key.Return)
@@ -220,7 +216,7 @@ public class IPv4Box: TemplatedControl
     {
         if (e.Handled) return;
         var s = e.Text;
-        if (string.IsNullOrEmpty(s)) return;
+        if (s is null || string.IsNullOrEmpty(s)) return;
         if (s == ".")
         {
             _currentActivePresenter?.HideCaret();
@@ -446,7 +442,7 @@ public class IPv4Box: TemplatedControl
     private void DeleteImplementation(TextPresenter? presenter)
     {
         if(presenter is null) return;
-        var oldText = presenter.Text;
+        var oldText = presenter.Text ?? string.Empty;
         if (presenter.SelectionStart != presenter.SelectionEnd)
         {
             presenter.DeleteSelection();

src/Ursa/Controls/TimeBox.cs

@@ -271,7 +271,7 @@ public class TimeBox : TemplatedControl
     {
         if (e.Handled) return;
         string? s = e.Text;
-        if (string.IsNullOrEmpty(s)) return;
+        if (s is null || string.IsNullOrEmpty(s)) return;
         if (!char.IsNumber(s[0])) return;
         if (_currentActiveSectionIndex is null) return;
 
@@ -413,7 +413,7 @@ public class TimeBox : TemplatedControl
     private void ParseTimeSpan(bool showLeadingZero, bool skipParseFromText = false)
     {
         string format = showLeadingZero ? "D2" : "";
-        string millisecondformat = showLeadingZero ? "D3" : "";
+        string millisecondFormat = showLeadingZero ? "D3" : "";
 
         if (!skipParseFromText)
         {
@@ -428,7 +428,7 @@ public class TimeBox : TemplatedControl
         _hourText?.SetValue(TextPresenter.TextProperty, _values[0].ToString(format));
         _minuteText?.SetValue(TextPresenter.TextProperty, _values[1].ToString(format));
         _secondText?.SetValue(TextPresenter.TextProperty, _values[2].ToString(format));
-        _milliSecondText?.SetValue(TextPresenter.TextProperty, _values[3].ToString(millisecondformat));
+        _milliSecondText?.SetValue(TextPresenter.TextProperty, _values[3].ToString(millisecondFormat));
     }
 
     private void OnDragPanelPointerMoved(object? sender, PointerEventArgs e)
@@ -479,14 +479,14 @@ public class TimeBox : TemplatedControl
     /// <summary>
     /// Set dragPanel IsVisible to false if AllowDrag is true, and select all text in the section
     /// </summary>
-    /// <param name="index">The index of section that will be enter</param>
+    /// <param name="index">The index of section that will be entered</param>
     private void EnterSection(int index)
     {
         if (index < 0 || index > 3) return;
 
         if (AllowDrag)
             _dragPanels[index].IsVisible = false;
-        ShowCaretInteral(index);
+        ShowCaretInternal(index);
         _presenters[index].SelectAll();
     }
 
@@ -494,7 +494,7 @@ public class TimeBox : TemplatedControl
     {
         if (!_isShowedCaret[index])
         {
-            ShowCaretInteral(index);
+            ShowCaretInternal(index);
         }
         _presenters[index].ClearSelection();
         var caretPosition =
@@ -512,7 +512,7 @@ public class TimeBox : TemplatedControl
         _presenters[index].ClearSelection();
         if (_isShowedCaret[index])
         {
-           HideCaretInteral(index);
+           HideCaretInternal(index);
         }
 
         if (AllowDrag)
@@ -703,13 +703,13 @@ public class TimeBox : TemplatedControl
         return milliSecond;
     }
 
-    private void ShowCaretInteral(int index)
+    private void ShowCaretInternal(int index)
     {
         _presenters[index].ShowCaret();
         _isShowedCaret[index] = true;
     }
     
-    private void HideCaretInteral(int index)
+    private void HideCaretInternal(int index)
     {
         _presenters[index].HideCaret();
         _isShowedCaret[index] = false;