C# WPF侧边栏导航菜单(Dropdown Menu)

时间如流水,只能流去不流回!

点赞再看,养成习惯,这是您给我创作的动力!

本文 Dotnet9 https://dotnet9.com 已收录,站长乐于分享dotnet相关技术,比如Winform、WPF、ASP.NET Core等,亦有C++桌面相关的Qt Quick和Qt Widgets等,只分享自己熟悉的、自己会的。

阅读导航:

  • 一、先看效果
  • 二、本文背景
  • 三、代码实现
  • 四、文章参考
  • 五、代码下载

一、先看效果

二、本文背景

YouTube  Design com WPF 大神处习得,菜单导航功能实现,常规的管理系统应该常用,左侧显示菜单条目,点击菜单,右侧切换不同的业务用户控件。

常用菜单可以采用TreeView树形控件+特定样式实现 ,本文介绍的是使用Expander+ListView的组合形式实现的导航菜单,两种各有各的好处,本文不做优劣评价。

三、代码实现

3.1 添加Nuget库

站长使用.Net Core 3.1创建的WPF工程,创建“DropDownMenu”解决方案后,需要添加两个Nuget库:MaterialDesignThemes和MaterialDesignColors,上图的效果是使用该控件库实现的,非常强大。

C# WPF抽屉效果实现(C# WPF Material Design UI: Navigation Drawer & PopUp Menu)

3.2 工程结构

文件说明:

  • App.xaml:只引入MD控件样式。
  • MainWindow.展示导航菜单及控制菜单对应的用户控件切换。
  • UserControlMenuItem为单个菜单用户控件,由 Expander+ListView的组合形式实现 。
  • UserControlCustomers和UserControlProviders作为两个举例用的业务用户控件。
  • ViewModel中定义的两个菜单相关的类,将菜单及业务用户控件关联。

3.3 App.xaml引入MD控件样式

<Application x:Class="DropDownMenu.App"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:local="clr-namespace:DropDownMenu"
             StartupUri="MainWindow.xaml">
    <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>
</Application>

3.4 主窗体

MainWindow.xaml,整体布局,看上图加上下面的界面代码,添加界面左上角logo图标、左侧导航菜单、右侧业务控件显示容器等。

<Window x:Class="DropDownMenu.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:DropDownMenu"
        xmlns:materialDesign="http://materialdesigninxaml.net/winfx/xaml/themes"
        mc:Ignorable="d"
        Title="下拉菜单" Height="450" Width="800" WindowStartupLocation="CenterScreen" WindowState="Maximized">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto"/>
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="250"/>
            <ColumnDefinition Width="*"/>
        </Grid.ColumnDefinitions>

        <materialDesign:ColorZone Mode="PrimaryMid" Grid.ColumnSpan="2" HorizontalAlignment="Stretch">
            <Grid>
                <materialDesign:PopupBox PlacementMode="BottomAndAlignRightEdges" HorizontalAlignment="Right" Margin="10"/>
            </Grid>
        </materialDesign:ColorZone>
        <Grid HorizontalAlignment="Stretch" Grid.Row="1" Background="{StaticResource PrimaryHueMidBrush}">
            <Grid.RowDefinitions>
                <RowDefinition Height="70"/>
                <RowDefinition Height="326*"/>
            </Grid.RowDefinitions>
            <Grid Grid.Row="0" Background="GhostWhite">
                <Image Source="https://img.dotnet9.com/logo.png"/>
            </Grid>
            <ScrollViewer HorizontalAlignment="Stretch" HorizontalScrollBarVisibility="Disabled" VerticalScrollBarVisibility="Auto" Grid.Row="1">
                <StackPanel x:Name="Menu" Margin="10"/>
            </ScrollViewer>
        </Grid>
        <StackPanel x:Name="StackPanelMain" Grid.Row="1" Grid.Column="1" HorizontalAlignment="Stretch">
            
        </StackPanel>
    </Grid>
</Window>

MainWindow.xaml.cs,主窗体后台代码,没啥好说的,初始化菜单绑定数据、切换菜单显示用户控件。

using DropDownMenu.ViewModel;
using MaterialDesignThemes.Wpf;
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;

namespace DropDownMenu
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();

            var menuRegister = new List<SubItem>();
            menuRegister.Add(new SubItem("客户", new UserControlCustomers()));
            menuRegister.Add(new SubItem("供应商", new UserControlProviders()));
            menuRegister.Add(new SubItem("员工"));
            menuRegister.Add(new SubItem("产品"));
            var item6 = new ItemMenu("登记", menuRegister, PackIconKind.Register);

            var menuSchedule = new List<SubItem>();
            menuSchedule.Add(new SubItem("服务"));
            menuSchedule.Add(new SubItem("会议"));
            var item1 = new ItemMenu("预约", menuSchedule, PackIconKind.Schedule);

            var menuReports = new List<SubItem>();
            menuReports.Add(new SubItem("客户"));
            menuReports.Add(new SubItem("供应商"));
            menuReports.Add(new SubItem("产品"));
            menuReports.Add(new SubItem("库存"));
            menuReports.Add(new SubItem("销售额"));
            var item2 = new ItemMenu("报告", menuReports, PackIconKind.FileReport);

            var menuExpenses = new List<SubItem>();
            menuExpenses.Add(new SubItem("固定资产"));
            menuExpenses.Add(new SubItem("流动资金"));
            var item3 = new ItemMenu("费用", menuExpenses, PackIconKind.ShoppingBasket);

            var menuFinancial = new List<SubItem>();
            menuFinancial.Add(new SubItem("现金流"));
            var item4 = new ItemMenu("财务", menuFinancial, PackIconKind.ScaleBalance);

            Menu.Children.Add(new UserControlMenuItem(item6, this));
            Menu.Children.Add(new UserControlMenuItem(item1, this));
            Menu.Children.Add(new UserControlMenuItem(item2, this));
            Menu.Children.Add(new UserControlMenuItem(item3, this));
            Menu.Children.Add(new UserControlMenuItem(item4, this));
        }

        internal void SwitchScreen(object sender)
        {
            var screen = ((UserControl)sender);

            if (screen != null)
            {
                StackPanelMain.Children.Clear();
                StackPanelMain.Children.Add(screen);
            }
        }
    }
}

3.5 导航子菜单用户控件

UserControlMenuItem.xaml

<UserControl x:Class="DropDownMenu.UserControlMenuItem"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             xmlns:local="clr-namespace:DropDownMenu"             
             xmlns:materialDesign="http://materialdesigninxaml.net/winfx/xaml/themes"
             mc:Ignorable="d">
    <Grid>
        <materialDesign:PackIcon Kind="{Binding Icon}" Width="15" Height="15" Margin="10 16" Foreground="White"/>
        <ListBoxItem x:Name="ListViewItemMenu" Content="{Binding Header}" Padding="37 14" FontSize="15" Foreground="White"/>
        <Expander x:Name="ExpanderMenu" Header="{Binding Header}" IsExpanded="False" Width="210" HorizontalAlignment="Right" Background="{x:Null}" Foreground="White">
            <ListView x:Name="ListViewMenu" ItemsSource="{Binding SubItems}" Foreground="White" ScrollViewer.HorizontalScrollBarVisibility="Disabled" SelectionChanged="ListViewMenu_SelectionChanged">
                <ListView.ItemTemplate>
                    <DataTemplate>
                        <TextBlock Text="{Binding Name}" Padding="20 5"/>
                    </DataTemplate>
                </ListView.ItemTemplate>
            </ListView>
        </Expander>
    </Grid>
</UserControl>

UserControlMenuItem.xaml.cs

using DropDownMenu.ViewModel;
using System;
using System.Collections.Generic;
using System.Text;
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;

namespace DropDownMenu
{
    /// <summary>
    /// UserControlMenuItem.xaml 的交互逻辑
    /// </summary>
    public partial class UserControlMenuItem : UserControl
    {
        MainWindow _context;
        public UserControlMenuItem(ItemMenu itemMenu, MainWindow context)
        {
            InitializeComponent();

            _context = context;

            ExpanderMenu.Visibility = itemMenu.SubItems == null ? Visibility.Collapsed : Visibility.Visible;
            ListViewItemMenu.Visibility = itemMenu.SubItems == null ? Visibility.Visible : Visibility.Collapsed;

            this.DataContext = itemMenu;
        }

        private void ListViewMenu_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            _context.SwitchScreen(((SubItem)((ListView)sender).SelectedItem).Screen);
        }
    }
}

3.6 菜单ViewModel类

ItemMenu.cs

using MaterialDesignThemes.Wpf;
using System;
using System.Collections.Generic;
using System.Text;
using System.Windows.Controls;

namespace DropDownMenu.ViewModel
{
    public class ItemMenu
    {
        public ItemMenu(string header, List<SubItem> subItems, PackIconKind icon)
        {
            Header = header;
            SubItems = subItems;
            Icon = icon;
        }

        public string Header { get; private set; }
        public PackIconKind Icon { get; private set; }
        public List<SubItem> SubItems { get; private set; }
        public UserControl Screen { get; private set; }
    }
}

SubItem.cs

using System;
using System.Collections.Generic;
using System.Text;
using System.Windows.Controls;

namespace DropDownMenu.ViewModel
{
    public class SubItem
    {
        public SubItem(string name, UserControl screen = null)
        {
            Name = name;
            Screen = screen;
        }
        public string Name { get; private set; }
        public UserControl Screen { get; private set; }
    }
}

3.7 两个举例用的用户控件

UserControlCustomers.xaml

<UserControl x:Class="DropDownMenu.UserControlCustomers"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             xmlns:local="clr-namespace:DropDownMenu"
             mc:Ignorable="d" 
             d:DesignHeight="450" d:DesignWidth="800">
    <Grid>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="*"/>
            <ColumnDefinition Width="*"/>
            <ColumnDefinition Width="*"/>
            <ColumnDefinition Width="*"/>
        </Grid.ColumnDefinitions>
        <Grid.RowDefinitions>
            <RowDefinition Height="150"/>
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>
        <Border Margin="5" Grid.Column="0" Background="#FFC5C5C5" VerticalAlignment="Stretch" CornerRadius="12"/>
        <Border Margin="5" Grid.Column="1" Background="#FF7C54A0" VerticalAlignment="Stretch" CornerRadius="12"/>
        <Border Margin="5" Grid.Column="2" Background="#FF83CD80" VerticalAlignment="Stretch" CornerRadius="12"/>
        <Border Margin="5" Grid.Column="3" Background="#FFEE9246" VerticalAlignment="Stretch" CornerRadius="12"/>
    </Grid>
</UserControl>

UserControlProviders.xaml

<UserControl x:Class="DropDownMenu.UserControlProviders"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             xmlns:local="clr-namespace:DropDownMenu"
             mc:Ignorable="d" 
             d:DesignHeight="450" d:DesignWidth="800">
    <Grid>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="*"/>
            <ColumnDefinition Width="*"/>
            <ColumnDefinition Width="*"/>
            <ColumnDefinition Width="*"/>
        </Grid.ColumnDefinitions>
        <Grid.RowDefinitions>
            <RowDefinition Height="150"/>
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>
        <Border Margin="5" Grid.Column="0" Background="#FFD4E436" VerticalAlignment="Stretch" CornerRadius="12"/>
        <Border Margin="5" Grid.Column="1" Background="#FF81F9FF" VerticalAlignment="Stretch" CornerRadius="12"/>
        <Border Margin="5" Grid.Column="2" Background="#FF144BC3" VerticalAlignment="Stretch" CornerRadius="12"/>
        <Border Margin="5" Grid.Column="3" Background="#FFD34EBA" VerticalAlignment="Stretch" CornerRadius="12"/>
    </Grid>
</UserControl>

四、文章参考

建议直接打开大神视频学习,他的YouTube上还有很多代码视频哦,参考:
参考视频: Design com WPFhttps://www.youtube.com/watch?v=-JZJh7D0E5E

源码Github地址: https://github.com/Abel13/DropdownMenu

五、代码下载

文章中代码几乎已经全部贴出,就是这么多。

除非注明,文章均由 Dotnet9 整理发布,欢迎转载。

转载请注明:
作者:Dotnet9
链接:https://dotnet9.com/6716.html
来源:Dotnet9
著作权归作者所有。商业转载请联系作者获得授权,非商业转载请注明出处。

发表评论

登录后才能评论