我找到了一些 evidence这是可能的,
self.scene = Canvas()
Application.LoadComponent(self.scene, Uri('app.xaml', UriKind.Relative))
但是我的代码失败了:
class Program
{
[STAThread]
static void Main(string[] args)
{
Canvas scene = new Canvas();
Application.LoadComponent(scene, new Uri("app.xaml", UriKind.Relative));
}
}
我使用相同的 app.xaml 和“Build Action: None”和“Copy always”。
<Canvas
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
x:Class="System.Windows.Controls.Canvas"
x:Name="ball_design" >
<Canvas x:Name="workaround_canvas" >
<TextBlock x:Name="fps" Canvas.Left="10" Canvas.Top="10" Height="40" Canvas.ZIndex="10000" Text="-- fps" />
<Canvas x:Name="wpfe_ball_0" Width="52" Height="52" Canvas.Left="0" Canvas.Top="30">
<!-- Layer 3/<Group>/<Path> -->
<Path Opacity="0.900000" StrokeThickness="2.000000" Stroke="#ffa6d000" StrokeMiterLimit="1.000000" Fill="#ffcbff00" Data="F1 M 51.000000,26.000000 C 51.000000,39.806641 39.807129,51.000000 26.000000,51.000000 C 12.192871,51.000000 1.000000,39.806641 1.000000,26.000000 C 1.000000,12.193359 12.192871,1.000000 26.000000,1.000000 C 39.807129,1.000000 51.000000,12.193359 51.000000,26.000000 Z"/>
<!-- Layer 3/<Group>/<Path> -->
<Path Opacity="0.740000" Data="F1 M 43.143066,13.087891 C 50.602051,22.888672 49.009766,36.642578 39.590332,43.812500 C 30.170898,50.980469 16.489258,48.842773 9.032715,39.042969 C 1.573242,29.240234 3.166016,15.486328 12.584961,8.316406 C 22.003906,1.149414 35.685547,3.285156 43.143066,13.087891 Z">
<Path.Fill>
<RadialGradientBrush MappingMode="Absolute" GradientOrigin="156.791016,170.453125" Center="156.791016,170.453125" RadiusX="53.626404" RadiusY="53.626404">
<RadialGradientBrush.GradientStops>
<GradientStop Offset="0.000000" Color="#ffffffff"/>
<GradientStop Offset="0.361685" Color="#fff5f7dd"/>
<GradientStop Offset="0.415730" Color="#ffebf0bc"/>
<GradientStop Offset="1.000000" Color="#ffcbff00"/>
</RadialGradientBrush.GradientStops>
<RadialGradientBrush.Transform>
<MatrixTransform Matrix="1.190000,0.165000,-0.165000,-1.281300,-113.414185,241.757843" />
</RadialGradientBrush.Transform>
</RadialGradientBrush>
</Path.Fill>
</Path>
<!-- Layer 3/<Group>/<Path> -->
<Path Fill="#ffffffff" Data="F1 M 23.100586,9.477539 C 24.741699,11.634766 23.116211,15.630859 19.470703,18.404297 C 15.825684,21.178711 11.540039,21.678711 9.899414,19.522461 C 8.258301,17.365234 9.883789,13.369141 13.529297,10.594727 C 17.174316,7.821289 21.459961,7.321289 23.100586,9.477539 Z"/>
</Canvas>
<TextBlock x:Name="dbgwin" FontSize="10" Canvas.Top="10" Canvas.Left="250" Height="500" Width="200" Text="IronPython DLR" />
</Canvas>
</Canvas>
我收到 IOException:找不到资源“app.xaml”。
什么是解决方案?
最佳答案
我让这个工作。我的具体目标是将 ResourceDictionary 加载到 App 类中,这样我就可以从原始 XAML 文件加载自定义外观。就是这样。首先,在 App.xaml 中,添加以下内容:
protected override void OnStartup(StartupEventArgs e) {
base.OnStartup(e);
LoadSkin("Skins/Skin1.xaml");
}
private void LoadSkin(string FilePath) {
XmlReader XmlRead = XmlReader.Create(FilePath);
Application.Current.Resources =
(ResourceDictionary)XamlReader.Load(XmlRead);
XmlRead.Close();
}
创建一个“bin\Debug\Skins”文件夹并添加一个包含以下内容的“Skin1.xaml”:
<ResourceDictionary
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
>
<Style x:Key="ButtonAStyle" TargetType="{x:Type Button}">
<Setter Property="Control.Background" Value="Green" />
<Setter Property="Control.Foreground" Value="White" />
</Style>
</ResourceDictionary>
特定于皮肤
在这种特殊情况下,您必须确保在各个窗口中正确使用样式资源。这是一个例子:
<Button
Name="button1"
Style="{DynamicResource ButtonAStyle}"
Click="button1_Click"
>Button</Button>
这里有一个巧妙的技巧可以尝试。在 button1_Click() 中,尝试添加与上面 App.OnStartUp() 中相同的代码,但使用“Skin2.xaml”和“Red”作为按钮的背景色。皮肤会立即改变,无需重新加载应用程序或窗口。
关于wpf - 使用 LoadComponent 加载外部 XAML 文件,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/710329/