转换XAML的PathGeometry到WPF的PathGeometry [英] Convert XAML PathGeometry to WPF PathGeometry
问题描述
我想这是由线段的的PathGeometry。
所以,我用这首代码,但它的错误。
的PathGeometry TEMP =(的PathGeometry)Geometry.Parse(
< PathGeometry.Figures>+
<的PathFigure StartPoint可以= \193.5, 283.5\isClosed返= \True\>中+
< PathFigure.Segments>+
<线段点= \418.5,283.5\/ >中+
<线段点= \418.5,508.5\/>中+
<线段点= \193.5,508.5\/> +
<线段点= \193.5,283.5\/>中+
< /PathFigure.Segments>+
< /&的PathFigure GT; +
< /PathGeometry.Figures>);
如果我用这个第二个代码,这不是错误,但它不包括线段的。结果将PolyLineSegment但我想线段。
的PathGeometry TEMP =(的PathGeometry)Geometry.Parse(
M29 ,329L30,331L31,334L33,336L34,338L36,341L38,343L39,345L41,348L44,352L46,353L47,355L48,356L49,357L49,357L50,358L50,358L51,357L50,356L51,354L51,350L53,342L54,334L58,320L60,315L61 ,311L63,308L63,306L64,304L65,303L65,302L66,301L66,301L66,301L66,301L66,301L66,301L66,301);
我如何转换XAML的PathGeometry到WPF的PathGeometry?
感谢
您解析的XAML是不正确的代码,你需要使用XAML读取器和投结果到所需的类型。例如:
System.Windows.Shapes.Path的新路径=(System.Windows.Shapes.Path)System.Windows.Markup。 XamlReader.Parse(<路径的xmlns =HTTP://schemas.microsoft.com/winfx/2006/xaml/presentation'宽= '20'高度= '80'拉伸=补补='#FF000000'数据='M 20,25.2941L 20,29.4118L 15.9091,29.4118L 15.9091,40L 12.2727,40L 12.2727,29.4118L 2.54313e-006,29.4118L 2.54313e-006,25.6985L 13.4872,7.62939e-006L 15.9091,7.62939e -006L 15.9091,25.2941L 20,25.2941 ZM 12.2727,25.2941L 12.2727,5.28493L 2.09517,25.2941L 12.2727,25.2941 ZM 20,65.2941L 20,69.4118L 15.9091,69.4118L 15.9091,80L 12.2727,80L 12.2727,69.4118L -5.08626电子006,69.4118L -5.08626e-006,65.6985L 13.4872,40L 15.9091,40L 15.9091,65.2941L 20,65.2941 ZM 12.2727,65.2941L 12.2727,45.2849L 2.09517,65.2941L 12.2727,65.2941 Z'的HorizontalAlignment ='左' VerticalAlignment ='顶'保证金='140,60,0,0/>中);
LayoutRoot.Children.Add(的新路径);
如果您正在使用的代码背后,是有要分析一个XAML代码片段的原因是什么?您可以按如下编程创建路径:
路径path =新路径();
的PathGeometry几何=新的PathGeometry();
的PathFigure图=新的PathFigure();
figure.StartPoint =新的点(10,10);
figure.Segments.Add(新线段()
{
点=新的点(20,20)
});
//例如添加更多的细分这里
geometry.Figures.Add(图)
path.Data =几何;
一个路径由一几何形状,它是由数字,这是由段的<! / p>
如果你想使用简化路径数据在后面的代码,你可以使用通用值转换器:
< A HREF =http://www.scottlogic.co.uk/blog/colin/2010/07/a-universal-value-converter-for-wpf/> http://www.scottlogic.co.uk/博客/科林/ 2010/07 / A-普世价值的转换器换WPF /
I want the PathGeometry that consist of LineSegment.
So, I use this first code but it's error.
PathGeometry temp = (PathGeometry)Geometry.Parse(
"<PathGeometry.Figures>" +
"<PathFigure StartPoint=\"193.5,283.5\" IsClosed=\"True\">" +
"<PathFigure.Segments>" +
"<LineSegment Point=\"418.5,283.5\" />" +
"<LineSegment Point=\"418.5,508.5\" />" +
"<LineSegment Point=\"193.5,508.5\" />" +
"<LineSegment Point=\"193.5,283.5\" />" +
"</PathFigure.Segments>" +
"</PathFigure>" +
"</PathGeometry.Figures>");
If I use this second code, it's not error but it doesn't consist of LineSegment. The result will be PolyLineSegment but I want LineSegment.
PathGeometry temp = (PathGeometry)Geometry.Parse(
"M29,329L30,331L31,334L33,336L34,338L36,341L38,343L39,345L41,348L44,352L46,353L47,355L48,356L49,357L49,357L50,358L50,358L51,357L50,356L51,354L51,350L53,342L54,334L58,320L60,315L61,311L63,308L63,306L64,304L65,303L65,302L66,301L66,301L66,301L66,301L66,301L66,301L66,301");
How do I convert XAML PathGeometry to WPF PathGeometry?
Thanks
Your code for parsing the XAML is incorrect, you need to use a XAML reader and cast the result to the required type. e.g.:
System.Windows.Shapes.Path newPath = (System.Windows.Shapes.Path)System.Windows.Markup.XamlReader.Parse("<Path xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation' Width='20' Height='80' Stretch='Fill' Fill='#FF000000' Data='M 20,25.2941L 20,29.4118L 15.9091,29.4118L 15.9091,40L 12.2727,40L 12.2727,29.4118L 2.54313e-006,29.4118L 2.54313e-006,25.6985L 13.4872,7.62939e-006L 15.9091,7.62939e-006L 15.9091,25.2941L 20,25.2941 Z M 12.2727,25.2941L 12.2727,5.28493L 2.09517,25.2941L 12.2727,25.2941 Z M 20,65.2941L 20,69.4118L 15.9091,69.4118L 15.9091,80L 12.2727,80L 12.2727,69.4118L -5.08626e-006,69.4118L -5.08626e-006,65.6985L 13.4872,40L 15.9091,40L 15.9091,65.2941L 20,65.2941 Z M 12.2727,65.2941L 12.2727,45.2849L 2.09517,65.2941L 12.2727,65.2941 Z ' HorizontalAlignment='Left' VerticalAlignment='Top' Margin='140,60,0,0'/>");
LayoutRoot.Children.Add(newPath);
If you are using code-behind, is there any reason you want to parse a XAML snippet? You can programmatically create a path as follows:
Path path = new Path();
PathGeometry geometry = new PathGeometry();
PathFigure figure = new PathFigure();
figure.StartPoint = new Point(10,10);
figure.Segments.Add(new LineSegment()
{
Point = new Point (20, 20)
});
// e.g. add more segments here
geometry.Figures.Add(figure);
path.Data = geometry;
A path is composed of a geometry, which is composed of figures, which are composed of segments!
If you want to use the simplified path data in code behind you could use a universal value converter:
http://www.scottlogic.co.uk/blog/colin/2010/07/a-universal-value-converter-for-wpf/
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