[英]Styles from resources aren't used when UserControl is instantiated in other class
I create custom WPF Expander inherited from common Expander. 我创建从通用扩展器继承的自定义WPF扩展器。 I have a file with styles at path
MyAssembly/Theme/generic.xaml
. 我在路径
MyAssembly/Theme/generic.xaml
有一个具有样式的MyAssembly/Theme/generic.xaml
。 I can see that styles are applied in designer but are not in running program . 我可以看到样式在设计器中应用,但不在运行的程序中 。
MyExpander.xaml: MyExpander.xaml:
<Expander x:Class="Path.To.MyExpander"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008">
<Expander.Resources>
<ResourceDictionary>
<ResourceDictionary.MergedDictionaries>
<ResourceDictionary Source="pack://application:,,,/MyAssembly;component/Theme/generic.xaml"/>
</ResourceDictionary.MergedDictionaries>
</ResourceDictionary>
</Expander.Resources>
...
generic.xaml: generic.xaml:
<ResourceDictionary
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008">
...
code where I instanciate the expanders: 我实例化扩展器的代码:
class Viewer
{
private void GenerateExpanders()
{
this.Expanders.Children.Clear();
foreach (...)
{
MyExpander ex = new MyExpander();
ex.HeaderText.Text = "Sample";
ex.HorizontalAlignment = System.Windows.HorizontalAlignment.Stretch;
ex.IsExpanded = true;
this.Expanders.Children.Add(ex);
}
}
}
All three files are in one assembly but class Viewer is instantiated in another assembly. 这三个文件都在一个程序集中,但类Viewer在另一个程序集中实例化。 Is there something am I doing wrong?
我做错什么了吗?
I had 我有
<Style TargetType="Expander"
but it should be 但这应该是
<Style TargetType="MyExpander"
I didn't realise that it wasn't Expander anymore - it was MyExpander ( class MyExpander : Expander
) 我没有意识到它不再是Expander了-它是MyExpander(
class MyExpander : Expander
)
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