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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:
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:
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。
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>
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());}
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:
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