Merge pull request #752 from yangjieshao/main

修复了NumPad对NumericUpDown和IPv4Box的支持

src/Ursa.Themes.Semi/Controls/NumPad.axaml

@@ -1,4 +1,4 @@
-<ResourceDictionary
+<ResourceDictionary
     xmlns="https://github.com/avaloniaui"
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
     xmlns:u="https://irihi.tech/ursa">
@@ -92,7 +92,7 @@
                         </u:NumPadButton>
                         <u:NumPadButton
                             Grid.Row="1"
-                            Grid.RowSpan="2"
+                            Grid.RowSpan="1"
                             Grid.Column="3"
                             Height="{x:Static x:Double.NaN}"
                             VerticalAlignment="Stretch"
@@ -100,6 +100,16 @@
                             FunctionKey="Add"
                             NumContent="+"
                             NumKey="Add" />
+                        <u:NumPadButton
+                            Grid.Row="2"
+                            Grid.RowSpan="1"
+                            Grid.Column="3"
+                            Height="{x:Static x:Double.NaN}"
+                            VerticalAlignment="Stretch"
+                            FunctionContent="←"
+                            FunctionKey="Back"
+                            NumContent="←"
+                            NumKey="Back" />
                         <u:NumPadButton
                             Grid.Row="2"
                             Grid.Column="0"