C# WPF可拖拽的TabControl
阅读导航
- 本文背景
- 代码实现
- 本文参考
- 源码
1. 本文背景
本文介绍使用第三方开源库 Dragablz 实现可拖拽的 TabControl，本文代码效果图如下：
20200117210501.gif
2. 代码实现
使用 .Net Framework 4.8 创建名为 “TabMenu2” 的WPF模板项目，添加三个Nuget库：MaterialDesignThemes、MaterialDesignColors 和 Dragablz，其中 TabControl 的拖拽功能是由 Dragablz 库实现的。
以下为三个库具体版本：
<?xml version="1.0" encoding="utf-8"?>
<packages>
<package id="Dragablz" version="0.0.3.203" targetFramework="net45" />
<package id="MaterialDesignColors" version="1.2.3-ci948" targetFramework="net48" />
<package id="MaterialDesignThemes" version="3.1.0-ci948" targetFramework="net48" />
</packages>
解决方案主要文件目录组织结构：
- TabMenu2
- App.xaml
- MainWindow.xaml
- MainWIndow.xaml.cs
注：站长尝试使用 .NET CORE 3.1 创建WPF项目，但 Dragablz 库暂时未提供 .NET CORE 的版本。想着自己编译 Dragablz 的 .NET CORE 版本，奈何功力不够，改了一些源码，最后放弃了。文中代码及文末给出的 Demo 运行程序需要在 .NET Framework 4.0 运行时环境下运行，想尝试编译 Dragablz 库的朋友可在文末给出的链接中下载编译。
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 和 Dragablz 库的样式文件：
<Application x:Class="TabMenu2.App"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:dragablz="clr-namespace:Dragablz;assembly=Dragablz"
StartupUri="MainWindow.xaml">
<Application.Resources>
<ResourceDictionary>
<ResourceDictionary.MergedDictionaries>
<!-- primary color -->
<ResourceDictionary>
<!-- include your primary palette -->
<ResourceDictionary.MergedDictionaries>
<ResourceDictionary Source="pack://application:,,,/MaterialDesignColors;component/Themes/MaterialDesignColor.purple.xaml" />
</ResourceDictionary.MergedDictionaries>
<!--
include three hues from the primary palette (and the associated forecolours).
Do not rename, keep in sequence; light to dark.
-->
<SolidColorBrush x:Key="PrimaryHueLightBrush" Color="{StaticResource Primary100}"/>
<SolidColorBrush x:Key="PrimaryHueLightForegroundBrush" Color="{StaticResource Primary100Foreground}"/>
<SolidColorBrush x:Key="PrimaryHueMidBrush" Color="{StaticResource Primary500}"/>
<SolidColorBrush x:Key="PrimaryHueMidForegroundBrush" Color="{StaticResource Primary500Foreground}"/>
<SolidColorBrush x:Key="PrimaryHueDarkBrush" Color="{StaticResource Primary700}"/>
<SolidColorBrush x:Key="PrimaryHueDarkForegroundBrush" Color="{StaticResource Primary700Foreground}"/>
</ResourceDictionary>
<!-- secondary colour -->
<ResourceDictionary>
<!-- include your secondary pallette -->
<ResourceDictionary.MergedDictionaries>
<ResourceDictionary Source="pack://application:,,,/MaterialDesignColors;component/Themes/MaterialDesignColor.purple.xaml" />
</ResourceDictionary.MergedDictionaries>
<!-- include a single secondary accent color (and the associated forecolour) -->
<SolidColorBrush x:Key="SecondaryAccentBrush" Color="{StaticResource Accent200}"/>
<SolidColorBrush x:Key="SecondaryAccentForegroundBrush" Color="{StaticResource Accent200Foreground}"/>
</ResourceDictionary>
<!-- Include the Dragablz Material Design style -->
<ResourceDictionary Source="pack://application:,,,/Dragablz;component/Themes/materialdesign.xaml"/>
<ResourceDictionary Source="pack://application:,,,/MaterialDesignThemes.Wpf;component/Themes/MaterialDesignTheme.Defaults.xaml" />
</ResourceDictionary.MergedDictionaries>
<!-- tell Dragablz tab control to use the Material Design theme -->
<Style TargetType="{x:Type dragablz:TabablzControl}" BasedOn="{StaticResource MaterialDesignTabablzControlStyle}" />
</ResourceDictionary>
</Application.Resources>
</Application>
2.2 演示窗体布局
文件【MainWindow.xaml】，引入 MaterialDesignThemes 和 Dragablz 库的命名空间，【dragablz:TabablzControl】为 Dragablz 库封装的 TabControl，使用方式和原生控件类似，单项标签依然使用 TabItem，使用起来很简单，源码如下：
<Window x:Class="TabMenu2.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"
xmlns:dragablz="clr-namespace:Dragablz;assembly=Dragablz"
mc:Ignorable="d"
Height="600" Width="1080" ResizeMode="NoResize" WindowStartupLocation="CenterScreen"
MouseLeftButtonDown="Window_MouseLeftButtonDown" WindowStyle="None">
<Grid>
<Grid Height="60" VerticalAlignment="Top" Background="#FF9C27B0">
<TextBlock Text="Dotnet9.com：可拖拽TabControl" Foreground="White" HorizontalAlignment="Center" VerticalAlignment="Center" FontSize="22" FontFamily="Champagne & Limousines" />
<Button HorizontalAlignment="Right" VerticalAlignment="Center" Background="{x:Null}" BorderBrush="{x:Null}" Click="Close_Click">
<materialDesign:PackIcon Kind="Close"/>
</Button>
</Grid>
<Grid Margin="0 60 0 0">
<dragablz:TabablzControl>
<dragablz:TabablzControl.InterTabController>
<dragablz:InterTabController/>
</dragablz:TabablzControl.InterTabController>
<TabItem Header="首页">
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="50"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<TextBlock FontSize="30" HorizontalAlignment="Center" VerticalAlignment="Center">
<Run Text="欢迎访问Dotnet9的博客："/>
<Hyperlink Click="ShowWeb_Click" Tag="https://dotnet9.com">https://dotnet9.com</Hyperlink>
</TextBlock>
<WebBrowser Grid.Row="1" Margin="5" Source="https://dotnet9.com"/>
</Grid>
</TabItem>
<TabItem Header="设计">
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="50"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<TextBlock Text="为用户体验服务！" FontSize="30" HorizontalAlignment="Center" VerticalAlignment="Center"/>
<WebBrowser Grid.Row="1" Margin="5" Source="https://dotnet9.com"/>
</Grid>
</TabItem>
<TabItem Header="帮助">
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="50"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<TextBlock FontSize="30" HorizontalAlignment="Center" VerticalAlignment="Center">
<Run Text="问答社区："/>
<Hyperlink Click="ShowWeb_Click" Tag="https://dotnet9.com/questions-and-answers">https://dotnet9.com/questions-and-answers</Hyperlink>
</TextBlock>
<WebBrowser Grid.Row="1" Margin="5" Source="https://dotnet9.com/questions-and-answers"/>
</Grid>
</TabItem>
<TabItem>
<TabItem.Header>
<Image Source="https://img.dotnet9.com/logo.png"/>
</TabItem.Header>
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="50"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<TextBlock HorizontalAlignment="Center" VerticalAlignment="Center" FontSize="30">
<Hyperlink Click="ShowWeb_Click" Tag="https://dotnet9.com">https://dotnet9.com</Hyperlink>
</TextBlock>
<WebBrowser Grid.Row="1" Margin="5" Source="https://dotnet9.com"/>
</Grid>
</TabItem>
</dragablz:TabablzControl>
</Grid>
</Grid>
</Window>
后台代码【MainWindow.xaml.cs】实现鼠标左键拖动窗体、右上角关闭窗体、超链接打开网站等功能：
private void Window_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
DragMove();
}
private void Close_Click(object sender, RoutedEventArgs e)
{
this.Close();
}
private void ShowWeb_Click(object sender, RoutedEventArgs e)
{
Process.Start((sender as Hyperlink).Tag.ToString());
}
3.本文参考
- 视频一：C# WPF Material Design UI: Tab Menu，配套源码：TabMenu2。
- C# WPF开源控件库《MaterialDesignInXAML》
- Dragablz-C# WPF可拖拽的TabControl控件
4.源码
效果图实现代码在文中已经全部给出，可直接Copy，按解决方案目录组织代码文件即可运行。
演示Demo(点击下载->DragTabControl，2.39 MB)目录结构：
- DragTabControl
- TabMenu2.exe
- Dragablz.dll
- MaterialDesignThemes.Wpf.dll
- MaterialDesignColors.dll
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