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样式（3）----修改主题颜色

news 来源：原创 2024/9/13 18:56:21

楔子：做软件时，经常有这样的需求，这样配色不合适？或者像动态的修改样式？那问题来了：怎样修软件界面的主题、修改皮肤？

方法1：使用第三方控件，直接更换主题，panuon 有类似的应用；

方法2：使用DynamicResource 资源，在代码中修改样式，然后引用该样式的所有主题将会被改变；下面介绍简单应用：

步骤一：定义样式，用 DynamicResource 引用：

<Window x:Class="HandyControlDemo.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:local="clr-namespace:HandyControlDemo"mc:Ignorable="d"Title="MainWindow" Height="450" Width="800"><Window.Resources><SolidColorBrush x:Key="TestBrush" Color="#FF0000" /></Window.Resources><Grid><StackPanel><Button  Width="150" Background="{DynamicResource TestBrush}" Content= "{Binding ContenTest}" Click="Button_SttkeCkucj"></Button></StackPanel></Grid>
</Window>

步骤二：在代码中修改 "TestBrush" 的值：


using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Runtime.CompilerServices;
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 static HandyControlDemo.MainWindow;namespace HandyControlDemo
{/// <summary>/// MainWindow.xaml 的交互逻辑/// </summary>public partial class MainWindow : System.Windows.Window, INotifyPropertyChanged{private string _contenTest;public string ContenTest {get { return _contenTest; }set {_contenTest = value; this.RaisePropertyChanged();}}public event PropertyChangedEventHandler PropertyChanged;public void RaisePropertyChanged([CallerMemberName] string propertyName = ""){if (this.PropertyChanged != null){this.PropertyChanged(this, new PropertyChangedEventArgs(propertyName));}}public MainWindow(){InitializeComponent();this.DataContext = this;ContenTest = "修改 DynamicResource";}private void Button_SttkeCkucj(object sender, RoutedEventArgs e){this.Resources["TestBrush"] = new SolidColorBrush(Colors.Green);ContenTest = "修改成功";}}
}

效果如下：