C# WPF 切换主题的几种方法

By jerryxjr1220 at 2023-11-02 • 0人收藏 • 293人看过
<hc:GlowWindow x:Class="WpfThemeDemo.Views.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:model="clr-namespace:WpfThemeDemo.Models"
        xmlns:vm="clr-namespace:WpfThemeDemo.ViewModels"
        xmlns:view="clr-namespace:WpfThemeDemo.Views"
        xmlns:i="http://schemas.microsoft.com/xaml/behaviors"
        xmlns:local="clr-namespace:WpfThemeDemo"
        xmlns:hc="https://handyorg.github.io/handycontrol"
        d:DataContext="{d:DesignInstance Type=vm:MainViewModel}"
        mc:Ignorable="d"
        Title="MainWindow" Height="450" Width="800" 
        FontFamily="JetBrains Mono" 
        FontSize="{StaticResource TextFontSize}">
    <hc:GlowWindow.Resources>
        <BooleanToVisibilityConverter x:Key="BooleanToVisibilityConverter" />
        <Style x:Key="TextBlockTheme" TargetType="{x:Type TextBlock}">
            <Style.Triggers >
                <DataTrigger Binding="{Binding ElementName=tbTheme, Path=IsChecked}" Value="True">
                    <Setter Property="Foreground" Value="LightBlue" />
                </DataTrigger>
                <DataTrigger Binding="{Binding ElementName=tbTheme, Path=IsChecked}" Value="False">
                    <Setter Property="Foreground" Value="DarkBlue" />
                </DataTrigger>
            </Style.Triggers>
        </Style>
        <Style x:Key="TextBoxTheme" TargetType="{x:Type TextBox}">
            <Style.Triggers >
                <DataTrigger Binding="{Binding ElementName=tbTheme, Path=IsChecked}" Value="True">
                    <Setter Property="Foreground" Value="Blue" />
                    <Setter Property="Background" Value="White" />
                </DataTrigger>
                <DataTrigger Binding="{Binding ElementName=tbTheme, Path=IsChecked}" Value="False">
                    <Setter Property="Foreground" Value="White" />
                    <Setter Property="Background" Value="Gray" />
                </DataTrigger>
            </Style.Triggers>
        </Style>
        <Style x:Key="ButtonTheme" TargetType="{x:Type Button}">
            <Style.Triggers >
                <DataTrigger Binding="{Binding ElementName=tbTheme, Path=IsChecked}" Value="True">
                    <Setter Property="Foreground" Value="{DynamicResource InfoBrush}" />
                    <Setter Property="Background" Value="White"/>
                </DataTrigger>
                <DataTrigger Binding="{Binding ElementName=tbTheme, Path=IsChecked}" Value="False">
                    <Setter Property="Foreground" Value="White" />
                    <Setter Property="Background" Value="DarkBlue"/>
                </DataTrigger>
            </Style.Triggers>
        </Style>
        <Style x:Key="ToggleButtonTheme" TargetType="{x:Type ToggleButton}">
            <Style.Triggers >
                <DataTrigger Binding="{Binding ElementName=tbTheme, Path=IsChecked}" Value="True">
                    <Setter Property="Foreground" Value="{DynamicResource InfoBrush}"/>
                </DataTrigger>
                <DataTrigger Binding="{Binding ElementName=tbTheme, Path=IsChecked}" Value="False">
                    <Setter Property="Foreground" Value="DarkBlue"/>
                </DataTrigger>
            </Style.Triggers>
        </Style>

    </hc:GlowWindow.Resources>
    <Grid>
        <StackPanel Grid.Column="0">
            <TextBlock Text="Light Theme" FontSize="20" Margin="20" Style="{DynamicResource TextBlockTheme}" />
            <TextBox Width="400" FontSize="20" Margin="20" Style="{DynamicResource TextBoxTheme}"/>
            <Button Content="Button" FontSize="20" Height="45" HorizontalAlignment="Center" Style="{DynamicResource ButtonTheme}"/>
        </StackPanel>
        <ToggleButton Grid.Column="0" Content="Theme" HorizontalAlignment="Right" VerticalAlignment="Top" Margin="20"
                      Style="{StaticResource ToggleButtonTheme}" x:Name="tbTheme" IsChecked="True" Width="100" Click="TbTheme_OnClick"/>
        
    </Grid>
</hc:GlowWindow>
using CommunityToolkit.Mvvm.Messaging;
using CommunityToolkit.Mvvm.Messaging.Messages;
using HandyControl.Controls;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using WpfThemeDemo.Models;
using WpfThemeDemo.ViewModels;
using MessageBox = HandyControl.Controls.MessageBox;

namespace WpfThemeDemo.Views
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : GlowWindow
    {
        private MainViewModel mainViewModel;
        public MainWindow()
        {
            InitializeComponent();

            #region 注册并接受消息

            //WeakReferenceMessenger.Default.Register<CustomizedMessage>(this, (o, m) => { MessageBox.Show("Received!"); });

            #endregion


            mainViewModel = new MainViewModel();
            this.DataContext = mainViewModel;

            
        }


        private void TbTheme_OnClick(object sender, RoutedEventArgs e)
        {
            if (tbTheme.IsChecked == true)
                this.Background = Brushes.White;
            else
                this.Background = Brushes.Gray;

        }
    }
}


2 个回复 | 最后更新于 2023-11-03
2023-11-03   #1

用资源字典好点吧,替换字典整个都改变

2023-11-03   #2

回复#1 @aubreychao :

是的,这样改也可以

Application.Current.Resources["Key"] = new ...


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