WPF基础入门-Class8-资源基础

WPF基础入门

Class8-资源基础

前言：方便各种资源的集中管理和动态效果
静态引用：初始化的时候确定样式，后续不发生改变
动态引用：样式随着引用的内容一起改变
1、新建资源字典.xaml，创建一个边框颜色资源MyBrush和一个button的style

<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
    
    <Style x:Key="DefaultButtonStyle" TargetType="Button">
        "Foreground" Value="Red">
        "FontSize" Value="15">
    Style>


    <SolidColorBrush x:Key="MyBrush" Color="Yellow"/>

ResourceDictionary>

2、在App.xaml中引入资源字典

<Application.Resources>
         
        <ResourceDictionary>
            <ResourceDictionary.MergedDictionaries>
                <ResourceDictionary Source="Resources/ButtonStyle.xaml">ResourceDictionary>
            ResourceDictionary.MergedDictionaries>
        ResourceDictionary>
    Application.Resources>

3、新建一个页面.xaml

<Window x:Class="WPF_Learn.Class_10_资源基础"
        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:WPF_Learn"
        mc:Ignorable="d"
        Title="Class_10_资源基础" Height="450" Width="800">
    
    
    
    <Grid>
        <StackPanel>
            <Button Content="点击我触发Test_Click" Click="Test_Click" Style="{StaticResource DefaultButtonStyle}">Button>
            <Button Content="静态引用，不会发生改变" Margin="0,5,0,5" BorderBrush="{StaticResource MyBrush}">Button>
            <Button Content="动态引用，点击按钮MyBrush改变后样式跟着改变" BorderBrush="{DynamicResource MyBrush}">Button>
        StackPanel>
    Grid>
Window>

 private void Test_Click(object sender, RoutedEventArgs e)
        {
            // 资源的动态改变 静态引用在初始化的时候固定
            this.Resources["MyBrush"] = new SolidColorBrush(Colors.Blue);
            
			//寻找资源字典
            //var solidColor = App.Current.FindResource("SolidColor");
            //var style = App.Current.FindResource("DefaultButtonStyle");
        }