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WPF 自定义控件库

news 2026/3/26 20:42:37

一、使用场景

开发自定义控件库时，向外部暴露可复用的样式、模板、画笔等资源。
多模块应用中，共享通用资源（如主题样式）。
需要避免资源键命名冲突的场景。

二 ,程序

1.静态的后台代码资源键

// MyControlLibrary/ResourceKeys.cs
using System.Windows;namespace MyControlLibrary;public static class ResourceKeys
{// 按钮样式资源键public static ComponentResourceKey CustomButtonStyleKey =>new ComponentResourceKey(typeof(ResourceKeys), "CustomButtonStyle");// 文本框样式资源键public static ComponentResourceKey CustomTextBoxStyleKey =>new ComponentResourceKey(typeof(ResourceKeys), "CustomTextBoxStyle");// 主题色画笔资源键public static ComponentResourceKey ThemeBrushKey =>new ComponentResourceKey(typeof(ResourceKeys), "ThemeBrush");
}

2.前台代码

<!-- MyControlLibrary/Themes/Generic.xaml -->
<ResourceDictionaryxmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"xmlns:local="clr-namespace:MyControlLibrary"><SolidColorBrush x:Key="{x:Static local:ResourceKeys.ThemeBrushKey}" Color="#FF2196F3"/><Style x:Key="{x:Static local:ResourceKeys.CustomButtonStyleKey}" TargetType="Button"><Setter Property="Background" Value="{StaticResource {x:Static local:ResourceKeys.ThemeBrushKey}}"/><Setter Property="Foreground" Value="White"/><Setter Property="Padding" Value="12,6"/><Setter Property="FontSize" Value="14"/><Setter Property="Template"><Setter.Value><ControlTemplate TargetType="Button"><Border Background="{TemplateBinding Background}" CornerRadius="4" Padding="{TemplateBinding Padding}"SnapsToDevicePixels="True"><ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center"/></Border></ControlTemplate></Setter.Value></Setter></Style><Style x:Key="{x:Static local:ResourceKeys.CustomTextBoxStyleKey}" TargetType="TextBox"><Setter Property="BorderBrush" Value="{StaticResource {x:Static local:ResourceKeys.ThemeBrushKey}}"/><Setter Property="BorderThickness" Value="2"/><Setter Property="Padding" Value="8"/><Setter Property="FontSize" Value="14"/></Style>
</ResourceDictionary>

3.下面是引用上面的项目，在依赖项中引用一下

App.xaml

<Application x:Class="WpfApp.App"xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"xmlns:local="clr-namespace:WpfApp"StartupUri="MainWindow.xaml"><Application.Resources><ResourceDictionary><ResourceDictionary.MergedDictionaries><!-- 合并控件库的资源字典（Pack URI格式） --><ResourceDictionary Source="/MyControlLibrary;component/Themes/Generic.xaml"/></ResourceDictionary.MergedDictionaries></ResourceDictionary></Application.Resources>
</Application>

MainWindow.xaml

<!-- WpfApp/MainWindow.xaml -->
<Window x:Class="WpfApp.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:lib="clr-namespace:MyControlLibrary;assembly=MyControlLibrary"mc:Ignorable="d"Title=".NET 8 ComponentResourceKey 示例" Height="350" Width="500"><StackPanel Margin="20" ><TextBlock FontSize="16" FontWeight="Bold" Text="使用ComponentResourceKey的资源示例"/><!-- 使用自定义按钮样式 --><Button Content="自定义按钮" Style="{StaticResource {x:Static lib:ResourceKeys.CustomButtonStyleKey}}"/><!-- 使用自定义文本框样式 --><TextBox Text="自定义文本框" Style="{StaticResource {x:Static lib:ResourceKeys.CustomTextBoxStyleKey}}"/><!-- 使用主题色画笔 --><Border Height="60" Background="{StaticResource {x:Static lib:ResourceKeys.ThemeBrushKey}}"><TextBlock Text="主题色背景" Foreground="White" HorizontalAlignment="Center" VerticalAlignment="Center"/></Border></StackPanel>
</Window>