您可以将多个画布添加到根画布中,每个画布都有自己的背景笔:
<ScrollViewer HorizontalScrollBarVisibility="Visible">
<Canvas Width="10000" Height="10000">
<Canvas Width="10000" Height="10000">
<Canvas.Background>
<DrawingBrush Stretch="None" TileMode="Tile"
Viewport="0,0 10,10" ViewportUnits="Absolute">
<DrawingBrush.Drawing>
<GeometryDrawing>
<GeometryDrawing.Geometry>
<GeometryGroup>
<LineGeometry StartPoint="0,0" EndPoint="0,10"/>
<LineGeometry StartPoint="0,0" EndPoint="10,0"/>
</GeometryGroup>
</GeometryDrawing.Geometry>
<GeometryDrawing.Pen>
<Pen Thickness="1" Brush="DarkGray"/>
</GeometryDrawing.Pen>
</GeometryDrawing>
</DrawingBrush.Drawing>
</DrawingBrush>
</Canvas.Background>
</Canvas>
<Canvas Width="10000" Height="10000">
<Canvas.Background>
<DrawingBrush Stretch="None" TileMode="Tile"
Viewport="0,0 50,50" ViewportUnits="Absolute">
<DrawingBrush.Drawing>
<GeometryDrawing>
<GeometryDrawing.Geometry>
<GeometryGroup>
<LineGeometry StartPoint="0,0" EndPoint="0,50"/>
<LineGeometry StartPoint="0,0" EndPoint="50,0"/>
</GeometryGroup>
</GeometryDrawing.Geometry>
<GeometryDrawing.Pen>
<Pen Thickness="1" Brush="Blue"/>
</GeometryDrawing.Pen>
</GeometryDrawing>
</DrawingBrush.Drawing>
</DrawingBrush>
</Canvas.Background>
</Canvas>
<Canvas Width="10000" Height="10000">
<Canvas.Background>
<DrawingBrush Stretch="None" TileMode="Tile"
Viewport="0,0 100,100" ViewportUnits="Absolute">
<DrawingBrush.Drawing>
<GeometryDrawing>
<GeometryDrawing.Geometry>
<GeometryGroup>
<LineGeometry StartPoint="0,0" EndPoint="0,100"/>
<LineGeometry StartPoint="0,0" EndPoint="100,0"/>
</GeometryGroup>
</GeometryDrawing.Geometry>
<GeometryDrawing.Pen>
<Pen Thickness="1" Brush="Red"/>
</GeometryDrawing.Pen>
</GeometryDrawing>
</DrawingBrush.Drawing>
</DrawingBrush>
</Canvas.Background>
</Canvas>
</Canvas>
</ScrollViewer>
或者,您可以使用VisualBrush
,它可以将任何UIElement
构建为画刷。因此,您可以使用包含Rectangles
的Grid
或类似方法来制作画布背景:
<Canvas>
<Canvas.Background>
<VisualBrush>
<VisualBrush.Visual>
<Grid>
<Rectangle Width="10000" Height="10000">
<Rectangle.Fill>
<DrawingBrush Stretch="None" TileMode="Tile"
Viewport="0,0 10,10" ViewportUnits="Absolute">
<DrawingBrush.Drawing>
<GeometryDrawing>
<GeometryDrawing.Geometry>
<GeometryGroup>
<LineGeometry StartPoint="0,0" EndPoint="0,10"/>
<LineGeometry StartPoint="0,0" EndPoint="10,0"/>
</GeometryGroup>
</GeometryDrawing.Geometry>
<GeometryDrawing.Pen>
<Pen Thickness="1" Brush="DarkGray"/>
</GeometryDrawing.Pen>
</GeometryDrawing>
</DrawingBrush.Drawing>
</DrawingBrush>
</Rectangle.Fill>
</Rectangle>
<Rectangle Width="10000" Height="10000">
<Rectangle.Fill>
<DrawingBrush Stretch="None" TileMode="Tile"
Viewport="0,0 50,50" ViewportUnits="Absolute">
<DrawingBrush.Drawing>
<GeometryDrawing>
<GeometryDrawing.Geometry>
<GeometryGroup>
<LineGeometry StartPoint="0,0" EndPoint="0,50"/>
<LineGeometry StartPoint="0,0" EndPoint="50,0"/>
</GeometryGroup>
</GeometryDrawing.Geometry>
<GeometryDrawing.Pen>
<Pen Thickness="1" Brush="Blue"/>
</GeometryDrawing.Pen>
</GeometryDrawing>
</DrawingBrush.Drawing>
</DrawingBrush>
</Rectangle.Fill>
</Rectangle>
<Rectangle Width="10000" Height="10000">
<Rectangle.Fill>
<DrawingBrush Stretch="None" TileMode="Tile"
Viewport="0,0 100,100" ViewportUnits="Absolute">
<DrawingBrush.Drawing>
<GeometryDrawing>
<GeometryDrawing.Geometry>
<GeometryGroup>
<LineGeometry StartPoint="0,0" EndPoint="0,100"/>
<LineGeometry StartPoint="0,0" EndPoint="100,0"/>
</GeometryGroup>
</GeometryDrawing.Geometry>
<GeometryDrawing.Pen>
<Pen Thickness="1" Brush="Red"/>
</GeometryDrawing.Pen>
</GeometryDrawing>
</DrawingBrush.Drawing>
</DrawingBrush>
</Rectangle.Fill>
</Rectangle>
</Grid>
</VisualBrush.Visual>
</VisualBrush>
</Canvas.Background>
</Canvas>