我有一个使用默认颜色加载的MetroWindow。我可以选择让用户更改样式。在窗口中，我使用Content控件在初始化此窗口时从代码后面动态设置用户控件（此窗口是从另一个应用程序初始化的，因此没有app.xaml，我使用窗口本身的资源）。主窗口的代码如下。在用户控件中我使用了一些标签和一个选项卡控件。在窗口中，我有一个选项，用户可以从可用主题中选择更改主题（如在演示项目中）。在所有标签中我使用动态资源。
当窗口第一次加载时，将应用默认颜色，并且所有内部控件也具有相同的主题。当我从窗口顶部更改主题时，窗口边框，标题，焕发更改但内部控件保持旧主题（如选项卡控件标题等）我已尝试过所有内容，但似乎没有更改。
以下是我的代码：
<Controls:MetroWindow x:Class="Test.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:Controls="clr-namespace:MahApps.Metro.Controls;assembly=MahApps.Metro"
Title="MainWindow" Height="300" Width="300" ShowMaxRestoreButton="False" ShowMinButton="False"
BorderBrush="{DynamicResource HighlightBrush}"
GlowBrush="{DynamicResource HighlightBrush}" WindowStartupLocation="CenterScreen"
ResizeMode="NoResize" WindowTransitionsEnabled="False" TitleCaps="True"
BorderThickness="1">
<Window.Resources>
<ResourceDictionary>
<ResourceDictionary.MergedDictionaries>
<ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Controls.xaml" />
<ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Fonts.xaml" />
<ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Colors.xaml" />
<ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Accents/Blue.xaml" />
<ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Accents/BaseLight.xaml" />
<ResourceDictionary Source="/Test;component/Resources/Icons.xaml" />
</ResourceDictionary.MergedDictionaries>
</ResourceDictionary>
</Window.Resources>
<Border Margin="5" BorderBrush="Transparent" BorderThickness="0">
<ContentControl x:Name="ChildContentControl"
HorizontalAlignment="Stretch"
VerticalAlignment="Stretch">
</ContentControl>
</Border>
</Controls:MetroWindow>
窗口背后的代码：
public partial class MainWindow : MetroWindow
{
public MainWindow()
{
InitializeComponent();
this.Initialize();
}
public MainWindow(string title, UserControl childControl)
{
try
{
InitializeComponent();
this.Title = title;
this.ChildContentControl.Content = childControl;
}
catch (Exception de)
{
throw de;
}
}
}
我的用户控制XAML
<UserControl x:Class="Test.UCDemo"
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"
xmlns:sys="clr-namespace:System;assembly=mscorlib"
xmlns:local="clr-namespace:Test"
xmlns:Controls="clr-namespace:MahApps.Metro.Controls;assembly=MahApps.Metro"
mc:Ignorable="d"
d:DesignHeight="300" d:DesignWidth="300">
<UserControl.Resources>
<ResourceDictionary>
<ResourceDictionary.MergedDictionaries>
<ResourceDictionary Source="/Test;component/Resources/Icons.xaml" />
</ResourceDictionary.MergedDictionaries>
</ResourceDictionary>
</UserControl.Resources>
<Border>
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<DockPanel Grid.Row="0" LastChildFill="True">
<Grid Height="60" DockPanel.Dock="Bottom">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="auto"/>
<ColumnDefinition Width="5"/>
</Grid.ColumnDefinitions>
<Button Grid.Column="1" Margin="5,0,5,0" Width="50" Height="50"
Style="{DynamicResource MetroCircleButtonStyle}" Command="{Binding OKCommand}">
<Rectangle Width="20"
Height="20"
Fill="{Binding Path=Foreground, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type Button}}}">
<Rectangle.OpacityMask>
<VisualBrush Stretch="Fill"
Visual="{StaticResource appbar_check}" />
</Rectangle.OpacityMask>
</Rectangle>
</Button>
</Grid>
<Grid DockPanel.Dock="Top" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Background="Transparent"
SnapsToDevicePixels="True"
ScrollViewer.HorizontalScrollBarVisibility="Hidden" ScrollViewer.VerticalScrollBarVisibility="Hidden">
<Grid.RowDefinitions>
<RowDefinition Height="*"></RowDefinition>
<RowDefinition Height="auto"></RowDefinition>
</Grid.RowDefinitions>
<Grid Grid.Row="0">
<Grid.Resources>
<ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Controls.AnimatedSingleRowTabControl.xaml" />
</Grid.Resources>
<TabControl Margin="0,10,0,0" TabStripPlacement="Left" ItemsSource="{Binding Catalogs}" SelectedItem="{Binding SelectedCatalog}">
<TabControl.ItemTemplate>
<!-- this is the header template-->
<DataTemplate>
<TextBlock Text="{Binding Path=CaptionCat}" Foreground="{DynamicResource HighlightBrush}" FontSize="14" Margin="0,0,0,10" />
</DataTemplate>
</TabControl.ItemTemplate>
<TabControl.ContentTemplate>
<DataTemplate>
<ItemsControl ItemsSource="{Binding DataContext.SelectedCatalog.Books,RelativeSource={RelativeSource AncestorType={x:Type TabControl}}}">
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<WrapPanel ScrollViewer.VerticalScrollBarVisibility="Disabled"/>
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
<ItemsControl.ItemTemplate>
<DataTemplate>
<Controls:Tile Height="125" Width="300" IsEnabled="{Binding IsEnabled}" Title="{Binding CaptionBook}"/>
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
</DataTemplate>
</TabControl.ContentTemplate>
</TabControl>
</Grid>
</Grid>
</DockPanel>
</Grid>
</Border>
</UserControl>
我的用户控制代码背后：
public partial class UCDemo : UserControl
{
private VMDemo CatalogVM { set; get; }
public UCDemo()
{
try
{
InitializeComponent();
this.DataContext = new VMDemo();
}
catch (Exception de)
{
throw de;
}
}
}
最后，我将从托管应用程序代码中调用窗口和嵌入式用户控件：
private void ShowDemoUI()
{
try
{
var child = new UILibrary.UCDemo();
UILibrary.MainWindow window = new UILibrary.MainWindow("Book catalog", child);
window.Height = 450;
window.Width = 700;
window.ShowDialog();
}
catch (Exception de)
{
throw de;
}
}
答案 0 :(得分：0)
您需要在App.xaml
之后，我认为您需要查看Theme Manager。
这就是我所做的。在此示例中，即使我通过单击按钮更改主题，我的所有Content Control都会保存Theme：
public ShellView()
{
this.InitializeComponent();
var theme = ThemeManager.DetectAppStyle(Application.Current);
ThemeManager.ChangeAppStyle(Application.Current, ThemeManager.GetAccent("Blue"), theme.Item1);
}
private void Button_Click(object sender, RoutedEventArgs e)
{
var theme = ThemeManager.DetectAppStyle(Application.Current);
ThemeManager.ChangeAppStyle(Application.Current, ThemeManager.GetAccent("Cyan"), theme.Item1);
}
代码需要在你的Window的代码behing中（在我的情况下是它的ShellView.cs），我将假设它是MainWindow.cs
以下是Custom Theme的其他示例。
public ShellView()
{
this.InitializeComponent();
ThemeManager.AddAccent("YourAccent", new Uri("pack://application:,,,/YourAccent.xaml"));
// Set your Custom Theme when the Window start
var theme = ThemeManager.DetectAppStyle(Application.Current);
ThemeManager.ChangeAppStyle(Application.Current, ThemeManager.GetAccent("YourAccent"), theme.Item1);
}
private void Button_Click(object sender, RoutedEventArgs e)
{
// Change the Theme to Cyan on a simple button click
var theme = ThemeManager.DetectAppStyle(Application.Current);
ThemeManager.ChangeAppStyle(Application.Current, ThemeManager.GetAccent("Cyan"), theme.Item1);
}
答案 1 :(得分：0)
我认为你有两个选择来解决这个问题。
Test.UCDemo类型创建VMDemo DataTemplate，并将此模板的VMDemo传递给Content，以便ContentControl自动执行魔术给你（这只是一个建议，我没有测试过它）Test.UCDemo。希望有所帮助。