Silverlight/XAML – Learning by Coding
1: <?xml version="1.0" encoding="UTF-8"?>
2: <!-- coded by Thomas Meinike 10/08 -->
3: <UserControl x:Class="sl2_xamlreader.Page"
4: xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
5: xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
6: Width="800" Height="600">
7:
8: <Canvas Loaded="XAMLReader"/>
9:
10:
11: <!-- // zusätzlich verwendeter VB.NET-Code in Page.xaml.vb:
12:
13: Partial Public Class Page
14: Inherits UserControl
15:
16: Public Sub New()
17: InitializeComponent()
18: End Sub
19:
20: Private Sub XAMLReader(ByVal sender As System.Object, _
21: ByVal e As System.Windows.RoutedEventArgs)
22:
23: 'Rectangle- und textBlock-Elemente aus XAML-Strings erzeugen:
24: Dim xaml_rect As String = _
25: "<Rectangle xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation' " _
26: + "Canvas.Left='30' Canvas.Top='30' Width='200' Height='100' Fill='#6CF'/>"
27:
28: Dim xaml_text As String = _
29: "<TextBlock xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation' " _
30: + "Canvas.Left='35' Canvas.Top='150' Foreground='#999' " _
31: + "FontFamily='Arial' FontSize='12' Text='Rechteck + Text dynamisch erzeugt'/>"
32:
33: Dim rectangle = DirectCast(System.Windows.Markup.XamlReader.Load(xaml_rect), Rectangle)
34: sender.Children.Add(rectangle)
35:
36: Dim textblock = DirectCast(System.Windows.Markup.XamlReader.Load(xaml_text), TextBlock)
37: sender.Children.Add(textblock)
38:
39: '==============================================================================================
40:
41: 'Objekte aus XAML-Dokument objekte.xaml einlesen:
42: Dim xaml_file As Uri = New Uri("objekte.xaml", UriKind.Relative)
43: Dim xaml_stream As System.Windows.Resources.StreamResourceInfo = _
44: System.Windows.Application.GetResourceStream(xaml_file)
45:
46: Dim canvas As Canvas
47:
48: If Not xaml_stream Is Nothing Then
49: Using xaml_reader As System.IO.StreamReader = New System.IO.StreamReader(xaml_stream.Stream)
50: canvas = DirectCast(System.Windows.Markup.XamlReader.Load(xaml_reader.ReadToEnd()), Canvas)
51: sender.Children.Add(canvas)
52: End Using
53: End If
54:
55: End Sub
56:
57: End Class
58:
59: -->
60:
61:
62: <!-- // zusätzlich verwendeter XAML-Code in objekte.xaml
63:
64: <?xml version="1.0" encoding="UTF-8"?>
65: <Canvas xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
66: xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
67:
68: <Ellipse Canvas.Left="260" Canvas.Top="30" Width="150" Height="150" Fill="#C00"/>
69:
70: <Ellipse Canvas.Left="285" Canvas.Top="55" Width="100" Height="100" Fill="#0C0"/>
71:
72: <Ellipse Canvas.Left="310" Canvas.Top="80" Width="50" Height="50" Fill="#00C"/>
73:
74: <TextBlock Canvas.Left="275" Canvas.Top="200" Foreground="#999"
75: FontFamily="Arial" FontSize="12" Text="Inhalt von objekte.xaml"/>
76:
77: </Canvas>
78:
79: -->
80:
81: </UserControl>
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