update

Author: Vallarasu4653

StockChart/StockChart/MainPage.xaml

@@ -10,12 +10,19 @@
     <ContentPage.BindingContext>
         <local:StockViewModel x:Name="viewModel"></local:StockViewModel>
     </ContentPage.BindingContext>
-
-    <Border Margin="15" StrokeThickness="2"  Stroke="#79747E">
-
-        <Border.StrokeShape>
-            <RoundRectangle CornerRadius="10"/>
-        </Border.StrokeShape>
+    
+    <ContentPage.Resources>
+        <Style x:Key="PlatformSpecificBorder" TargetType="Border">
+            <Setter Property="Margin" Value="15" />
+            <Setter Property="StrokeThickness" Value="2" />
+            <Setter Property="Stroke" Value="#79747E" />
+            <Setter Property="StrokeShape">
+                <RoundRectangle CornerRadius="10"/>
+            </Setter>
+        </Style>
+    </ContentPage.Resources>
+
+    <Border x:Name="MyBorder">
 
         <Grid  ColumnDefinitions="*,*" Margin="10,-10,20,15" >
 

StockChart/StockChart/MainPage.xaml.cs

@@ -8,6 +8,10 @@ public partial class MainPage : ContentPage
     public MainPage()
     {
         InitializeComponent();
+        if(DeviceInfo.Platform == DevicePlatform.WinUI || DeviceInfo.Platform == DevicePlatform.MacCatalyst)
+        {
+            MyBorder.Style = (Style)Resources["PlatformSpecificBorder"];
+        }
     }
     private void SfSegmentedControl_SelectionChanged(object sender, Syncfusion.Maui.Toolkit.SegmentedControl.SelectionChangedEventArgs e)
     {