cleanup demo

Author: corvinsz

src/MainDemo.Wpf/NumericUpDown.xaml

@@ -35,11 +35,7 @@
       <smtx:XamlDisplay Margin="10,5"
                   VerticalAlignment="Top"
                   UniqueKey="decimalUpDown_default">
-        <StackPanel>
-          <materialDesign:DecimalUpDown Value="{Binding MyDecimal, Mode=TwoWay}" ValueStep="0.5" Minimum="-2.5" Maximum="2.5" />
-          <TextBlock Text="{Binding MyDecimal, Mode=TwoWay}" />
-          <Button Content="a button to focus"/>
-        </StackPanel>
+        <materialDesign:DecimalUpDown ValueStep="0.5" Minimum="-2.5" Maximum="2.5" />
       </smtx:XamlDisplay>
 
       <smtx:XamlDisplay Margin="10,5"

src/MainDemo.Wpf/NumericUpDown.xaml.cs

@@ -1,18 +1,7 @@
-using CommunityToolkit.Mvvm.ComponentModel;
-
-namespace MaterialDesignDemo;
+namespace MaterialDesignDemo;
 
 public partial class NumericUpDown : UserControl
 {
-    public NumericUpDown()
-    {
-        InitializeComponent();
-        this.DataContext = new MyVM();
-    }
-}
+    public NumericUpDown() => InitializeComponent();
 
-public partial class MyVM : ObservableObject
-{
-    [ObservableProperty]
-    private decimal _myDecimal;
 }