Add None Background for LiveGraph

ghost1372 · ghost1372 · commit f6747517d018 · 2026-05-22T00:15:32.000+03:30
diff --git a/dev/DevWinUI.Gallery/Views/Pages/Win2d/LiveGraphPage.xaml b/dev/DevWinUI.Gallery/Views/Pages/Win2d/LiveGraphPage.xaml
@@ -44,7 +44,7 @@
                         </StackPanel>
 
                         <StackPanel Orientation="Horizontal" Spacing="5">
-                            <ComboBox x:Name="CmbBackgroundMode" HorizontalAlignment="Stretch" Header="Background Mode" ItemsSource="{x:Bind LiveGraphBackgroundModeItems, Mode=OneWay}" SelectedIndex="0">
+                            <ComboBox x:Name="CmbBackgroundMode" HorizontalAlignment="Stretch" Header="Background Mode" ItemsSource="{x:Bind LiveGraphBackgroundModeItems, Mode=OneWay}" SelectedIndex="2">
                                 <ComboBox.ItemTemplate>
                                     <DataTemplate x:DataType="dev:LiveGraphBackgroundMode">
                                         <TextBlock Text="{x:Bind}" />
diff --git a/dev/DevWinUI/Controls/Win2DAndComposition/LiveGraph/Data/LiveGraphBackgroundMode.cs b/dev/DevWinUI/Controls/Win2DAndComposition/LiveGraph/Data/LiveGraphBackgroundMode.cs
@@ -2,6 +2,7 @@
 
 public enum LiveGraphBackgroundMode
 {
+    None,
     Cross,
     Dot
 }
diff --git a/dev/DevWinUI/Controls/Win2DAndComposition/LiveGraph/LiveGraph.cs b/dev/DevWinUI/Controls/Win2DAndComposition/LiveGraph/LiveGraph.cs
@@ -427,6 +427,8 @@ private void DrawBackground(CanvasDrawingSession ds, float width, float height)
     {
         switch (backgroundMode)
         {
+            case LiveGraphBackgroundMode.None:
+                break;
             case LiveGraphBackgroundMode.Cross:
                 // Draw vertical lines
                 for (float x = offsetX; x < width; x += crossSpacing)

Original file line number	Diff line number	Diff line change
`@@ -2,6 +2,7 @@`
`2`	`2`
`3`	`3`	`public enum LiveGraphBackgroundMode`
`4`	`4`	`{`
	`5`	`+ None,`
`5`	`6`	`Cross,`
`6`	`7`	`Dot`
`7`	`8`	`}`
Original file line number	Diff line number	Diff line change
`@@ -427,6 +427,8 @@ private void DrawBackground(CanvasDrawingSession ds, float width, float height)`
`427`	`427`	`{`
`428`	`428`	`switch (backgroundMode)`
`429`	`429`	`{`
	`430`	`+ case LiveGraphBackgroundMode.None:`
	`431`	`+ break;`
`430`	`432`	`case LiveGraphBackgroundMode.Cross:`
`431`	`433`	`// Draw vertical lines`
`432`	`434`	`for (float x = offsetX; x < width; x += crossSpacing)`