在画布中添加椭圆位置

Question

我有一个椭圆，我想以编程方式将其放入画布中。不幸的是，椭圆只能在右上角绘制。任何帮助？

SolidColorBrush newColor = HotSquare(col); 
     Color newCol = getCol(col); 
     Color newCol2 = getCol2(col); 

     Ellipse el1 = new Ellipse(); 
     el1.Height = 40; 
     el1.Width = 40; 
     RadialGradientBrush rgb = new RadialGradientBrush(); 
     GradientStop gsa = new GradientStop(); 
     el1.StrokeThickness = 3; 
     el1.Stroke = newColor; 
     el1.StrokeDashArray = new DoubleCollection() { 6, 6 }; 
     gsa.Color = newCol; 
     gsa.Offset = 0; 
     rgb.GradientStops.Add(gsa); 
     GradientStop gsb = new GradientStop(); 
     gsb.Color = newCol2; 
     gsb.Offset = 1; 
     rgb.GradientStops.Add(gsb); 
     el1.Fill = rgb; 

     Ellipse el2 = new Ellipse(); 
     el2.Height = 40; 
     el2.Width = 40; 
     el2.StrokeThickness = 3; 
     el2.Stroke = newColor; 

     //el2.Fill = new SolidColorBrush(Colors.Transparent); 

     Canvas canvas = new Canvas(); 
     canvas.Children.Add(el1); 
     //canvas.Children.Add(el2); 
     TextBlock txt = new TextBlock(); 
     txt.Text = "\n " + amnt.ToString(); 
     txt.Foreground = new SolidColorBrush(Color.FromArgb(255, 255, 255, 255)); 
     txt.Height = 60; 
     txt.Width = 60; 
     txt.HorizontalAlignment = HorizontalAlignment.Center; 
     //txt.VerticalAlignment = VerticalAlignment.Bottom; 
     txt.FontSize = 12; 
     canvas.Children.Add(txt); 
     Border border = new Border(); 
     border.BorderBrush = newColor; 
     border.BorderThickness = new Thickness(2); 
     border.Child = canvas; 
     LocationRect lr = new LocationRect(North, West, South, East); 
     HotspotLayer.AddChild(ele, lr); 

Answer 1

您可以拨打Canvas.SetTop和Canvas.SetLeft子元素上设置其在画布中的位置。

Canvas.SetTop(el2, 100); 
Canvas.SetLeft(el2, 100);