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  • .NET CORE(C#) WPF 方便的实现用户控件切换(祝大家新年快乐)

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    .NET CORE(C#) WPF 方便的实现用户控件切换(祝大家新年快乐)

    快到2020年了,祝大家新年快乐,今年2019最后一更,谢谢大家支持!

    阅读导航

    1. 本文背景
    2. 代码实现
    3. 本文参考
    4. 源码

    1. 本文背景

    一个系统主界面,放上一个菜单,点击菜单在客户区切换不同的展示界面,这是很常规的设计,见下面展示效果图:

    动画

    左侧一个菜单,点击菜单,右侧切换界面,界面切换动画使用MD控件的组件实现(自己使用动画也能实现)。

    2. 代码实现

    使用 .NET CORE 3.1 创建名为 “MenuChange” 的WPF模板项目,添加1个Nuget库:MaterialDesignThemes,版本为最新预览版3.1.0-ci948。

    解决方案主要文件目录组织结构:

    • AnimatedMenu
      • App.xaml
      • MainWindow.xaml
        • MainWindow.xaml.cs
      • ..[数个演示模块用户控件]

    2.1 引入样式

    文件【App.xaml】,在 StartupUri 中设置启动的视图【MainWindow.xaml】,并在【Application.Resources】节点增加 MaterialDesignThemes库的样式文件:

    <Application.Resources>
        <ResourceDictionary>
            <ResourceDictionary.MergedDictionaries>
                <ResourceDictionary Source="pack://application:,,,/MaterialDesignThemes.Wpf;component/Themes/MaterialDesignTheme.Light.xaml" />
                <ResourceDictionary Source="pack://application:,,,/MaterialDesignThemes.Wpf;component/Themes/MaterialDesignTheme.Defaults.xaml" />
                <ResourceDictionary Source="pack://application:,,,/MaterialDesignColors;component/Themes/Recommended/Primary/MaterialDesignColor.Blue.xaml" />
                <ResourceDictionary Source="pack://application:,,,/MaterialDesignColors;component/Themes/Recommended/Accent/MaterialDesignColor.Indigo.xaml" />
            </ResourceDictionary.MergedDictionaries>
        </ResourceDictionary>
    </Application.Resources>
    

    2.2 演示窗体

    文件【MainWindow.xaml】,布局代码、动画代码都在此文件中,源码如下:

    <Window x:Class="MenuChange.MainWindow"
            xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
            xmlns:materialDesign="http://materialdesigninxaml.net/winfx/xaml/themes"
            xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
            xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
            xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
            mc:Ignorable="d"
            Height="600" Width="1024" WindowStartupLocation="CenterScreen" ResizeMode="NoResize" WindowStyle="None" >
        <Grid Background="#FFEEEEEE" MouseDown="Grid_MouseDown">
            <StackPanel VerticalAlignment="Top">
                <Grid Background="#FF0069C0" Height="10"/>
                <Grid Margin="5">
                    <StackPanel HorizontalAlignment="Center" Orientation="Horizontal">
                        <TextBlock Text="Dotnet9.com" VerticalAlignment="Center" FontSize="20" FontFamily="Champagne &amp; Limousines" Margin="20 0"/>
                        <Button Width="30" Height="30" Background="{x:Null}" BorderBrush="{x:Null}" Padding="0" Foreground="Gray">
                            <materialDesign:PackIcon Kind="Wechat"/>
                        </Button>
                        <Button Width="30" Height="30" Background="{x:Null}" BorderBrush="{x:Null}" Padding="0" Foreground="Gray">
                            <materialDesign:PackIcon Kind="Qqchat"/>
                        </Button>
                        <Button Width="30" Height="30" Background="{x:Null}" BorderBrush="{x:Null}" Padding="0" Foreground="Gray">
                            <materialDesign:PackIcon Kind="GithubBox"/>
                        </Button>
                    </StackPanel>
                    <StackPanel Orientation="Horizontal" HorizontalAlignment="Right" Margin="10 0">
                        <Button Width="30" Height="30" Background="{x:Null}" BorderBrush="{x:Null}" Padding="0" Foreground="Gray">
                            <materialDesign:PackIcon Kind="BellOutline"/>
                        </Button>
                        <Button Width="30" Height="30" Background="{x:Null}" BorderBrush="{x:Null}" Padding="0" Foreground="Gray" Margin="0 0 10 0">
                            <materialDesign:PackIcon Kind="Settings"/>
                        </Button>
                        <Button x:Name="ButtonFechar" Width="30" Height="30" Background="{x:Null}" BorderBrush="{x:Null}" Padding="0" Foreground="Gray" Click="ButtonFechar_Click">
                            <materialDesign:PackIcon Kind="Close"/>
                        </Button>
                    </StackPanel>
                </Grid>
            </StackPanel>
    
            <Grid Margin="250 55 0 0">
                <Grid x:Name="GridPrincipal" HorizontalAlignment="Center" VerticalAlignment="Center"/>
            </Grid>
    
            <Grid Width="250" HorizontalAlignment="Left" Background="#FF222222">
                <materialDesign:TransitioningContent x:Name="TrainsitionigContentSlide" OpeningEffect="{materialDesign:TransitionEffect SlideInFromLeft, Duration=0:0:0.2}">
                    <Grid x:Name="GridCursor" Margin="0 100 0 0" Background="#FF0069C0" Width="10" HorizontalAlignment="Left" Height="60" VerticalAlignment="Top"/>
                </materialDesign:TransitioningContent>
                <Image Source="https://img.dotnet9.com/logo-head.png" VerticalAlignment="Top"/>
                <Image Source="https://img.dotnet9.com/logo-foot.png" VerticalAlignment="Bottom"/>
                <ListView x:Name="ListViewMenu" Margin="0 100" Foreground="LightGray" FontFamily="Champagne &amp; Limousines" FontSize="18" SelectionChanged="ListViewMenu_SelectionChanged" SelectedIndex="0">
                    <ListViewItem Height="60">
                        <StackPanel Orientation="Horizontal">
                            <materialDesign:PackIcon Kind="Home" Width="30" Height="30" VerticalAlignment="Center" Margin="5"/>
                            <TextBlock Text="首页" FontSize="17" VerticalAlignment="Center" Margin="20 0"/>
                        </StackPanel>
                    </ListViewItem>
                    <ListViewItem Height="60">
                        <StackPanel Orientation="Horizontal">
                            <materialDesign:PackIcon Kind="LanguageCsharp" Width="30" Height="30" VerticalAlignment="Center" Margin="5"/>
                            <TextBlock Text="WPF" FontSize="17" VerticalAlignment="Center" Margin="20 0"/>
                        </StackPanel>
                    </ListViewItem>
                    <ListViewItem Height="60">
                        <StackPanel Orientation="Horizontal">
                            <materialDesign:PackIcon Kind="LanguageCsharp" Width="30" Height="30" VerticalAlignment="Center" Margin="5"/>
                            <TextBlock Text="Winform" FontSize="17" VerticalAlignment="Center" Margin="20 0"/>
                        </StackPanel>
                    </ListViewItem>
                    <ListViewItem Height="60">
                        <StackPanel Orientation="Horizontal">
                            <materialDesign:PackIcon Kind="LanguageCsharp" Width="30" Height="30" VerticalAlignment="Center" Margin="5"/>
                            <TextBlock Text="ASP.NET CORE" FontSize="17" VerticalAlignment="Center" Margin="20 0"/>
                        </StackPanel>
                    </ListViewItem>
                    <ListViewItem Height="60">
                        <StackPanel Orientation="Horizontal">
                            <materialDesign:PackIcon Kind="LanguageCsharp" Width="30" Height="30" VerticalAlignment="Center" Margin="5"/>
                            <TextBlock Text="Xamarin.Forms" FontSize="17" VerticalAlignment="Center" Margin="20 0"/>
                        </StackPanel>
                    </ListViewItem>
                    <ListViewItem Height="60">
                        <StackPanel Orientation="Horizontal">
                            <materialDesign:PackIcon Kind="LanguageCpp" Width="30" Height="30" VerticalAlignment="Center" Margin="5"/>
                            <TextBlock Text="C++" FontSize="17" VerticalAlignment="Center" Margin="20 0"/>
                        </StackPanel>
                    </ListViewItem>
                </ListView>
            </Grid>
    
        </Grid>
    </Window>
    

    简单说明下:

    1. "GridPrincipal" 作为客户区子模块界面容器,展示新界面时,先移除旧用户控件,再添加新用户控件(站长以前使用时,是遍历容器中所有用户界面,对非选择用户控件作隐藏操作,然后添加新用户控件或者对已存在的被选择用户控件作显示操作)。
    2. 左侧菜单项使用 "ListView" 进行布局,实际开发需要运用模板,使用MVVM做成动态菜单,方便扩展。
    3. 右侧切换的子模块界面应该使用Prism或者其他框架(自已实现的模块dll)实现的子界面,方便动态扩展(需要和左侧菜单项进行关联)。

    文件【MainWindow.xaml.cs】,后台关闭窗体、菜单点击切换子模块界面、窗体移动等事件处理:

    using System.Windows;
    using System.Windows.Controls;
    using System.Windows.Input;
    
    namespace MenuChange
    {
        /// <summary>
        /// Interaction logic for MainWindow.xaml
        /// </summary>
        public partial class MainWindow : Window
        {
            public MainWindow()
            {
                InitializeComponent();
            }
            private void ButtonFechar_Click(object sender, RoutedEventArgs e)
            {
                Application.Current.Shutdown();
            }
    
            private void Grid_MouseDown(object sender, MouseButtonEventArgs e)
            {
                DragMove();
            }
    
            private void ListViewMenu_SelectionChanged(object sender, SelectionChangedEventArgs e)
            {
                int index = ListViewMenu.SelectedIndex;
                MoveCursorMenu(index);
    
                switch (index)
                {
                    case 0:
                        GridPrincipal.Children.Clear();
                        GridPrincipal.Children.Add(new UserControlMain());
                        break;
                    case 1:
                        GridPrincipal.Children.Clear();
                        GridPrincipal.Children.Add(new UserControlWPF());
                        break;
                    case 2:
                        GridPrincipal.Children.Clear();
                        GridPrincipal.Children.Add(new UserControlWinform());
                        break;
                    case 3:
                        GridPrincipal.Children.Clear();
                        GridPrincipal.Children.Add(new UserControlASPNETCORE());
                        break;
                    case 4:
                        GridPrincipal.Children.Clear();
                        GridPrincipal.Children.Add(new UserControlXamarinForms());
                        break;
                    case 5:
                        GridPrincipal.Children.Clear();
                        GridPrincipal.Children.Add(new UserControlCPP());
                        break;
                    default:
                        break;
                }
            }
    
            private void MoveCursorMenu(int index)
            {
                TrainsitionigContentSlide.OnApplyTemplate();
                GridCursor.Margin = new Thickness(0, (100 + (60 * index)), 0, 0);
            }
        }
    }
    

    方便演示,点击菜单,切换子用户控件时时写死的,见上面的说明,左侧菜单及右侧切换的子用户控件需要进行关联配置,方便扩展,建议使用Prism的模块化开发。

    2.3 演示主模块

    文件【UserControlMain.xaml】,只展示其中一个子模块用户控件吧,其他类似,文末有源码、可运行Demo供下载参考。

    注意: 需要使用MD控件的 TransitioningContent 组件将用户控件可视区域包裹起来,用于使用MD的移动切换动画,其中 OpeningEffect 见名思意,即是展示此用户控件时,动画如何播放,见下面代码,SlideInFromLeft 是指示展示时由左向右缓动,相反 SlideInFromRight即是由右向左缓动,其他属性可查阅MD官网或者Demo研究。

    <UserControl x:Class="MenuChange.UserControlMain"
                 xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                 xmlns:materialDesign="http://materialdesigninxaml.net/winfx/xaml/themes"
                 xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
                 xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                 xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
                 mc:Ignorable="d"
                 Height="auto" Width="auto">
        <Grid>
            <materialDesign:TransitioningContent x:Name="TrainsitionigContentSlide" OpeningEffect="{materialDesign:TransitionEffect SlideInFromLeft, Duration=0:0:0.8}">
                <StackPanel Background="#33ff0000">
                    <TextBox HorizontalAlignment="Center" VerticalAlignment="Center" FontSize="30" Foreground="White" Text="https://dotnet9.com"/>
                    <Image Source="https://img.dotnet9.com/20200124165746.png"/>
                </StackPanel>
            </materialDesign:TransitioningContent>
        </Grid>
    </UserControl>
    

    已奉上关键代码,全部代码文末有下载链接...

    3.本文参考

    1. 视频一:C# WPF Material Design UI: Fast Food Sales,配套源码:Pizzaria1
    2. C# WPF开源控件库《MaterialDesignInXAML》

    4.源码

    站长方便演示,文中的图片使用的本站外链图片:

    演示Demo下载


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  • 原文地址:https://www.cnblogs.com/Dotnet9-com/p/12232669.html
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