如何使用MahApps.Metro.Controls.Dialog创建messagebox？

MahApps.Metro 是一个用于 WPF 应用程序的开源库，它提供了一组现代化的控件和样式。MahApps.Metro.Controls.Dialogs 命名空间中的对话框控件可以用来创建现代化的消息框。

以下是一个简单的示例，展示了如何使用 MahApps.Metro 创建一个消息框。

步骤 1: 安装 MahApps.Metro

首先，你需要在你的 WPF 项目中安装 MahApps.Metro。你可以使用 NuGet 包管理器来安装：

Install-Package MahApps.Metro

步骤 2: 配置 App.xaml

在 App.xaml 中添加 MahApps.Metro 的资源字典：

<Application x:Class="YourNamespace.App"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             StartupUri="MainWindow.xaml">
    <Application.Resources>
        <ResourceDictionary>
            <ResourceDictionary.MergedDictionaries>
                <ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Controls.xaml" />
                <ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Fonts.xaml" />
                <ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Colors.xaml" />
                <ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Accents/Blue.xaml" />
                <ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Accents/BaseLight.xaml" />
            </ResourceDictionary.MergedDictionaries>
        </ResourceDictionary>
    </Application.Resources>
</Application>

步骤 3: 创建 MainWindow.xaml

在 MainWindow.xaml 中，使用 MetroWindow 作为主窗口：

<metro:MetroWindow x:Class="YourNamespace.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:metro="http://metro.mahapps.com/winfx/xaml/controls"
                   mc:Ignorable="d"
                   Title="MainWindow" Height="350" Width="525">
    <Grid>
        <Button Content="Show MessageBox" HorizontalAlignment="Center" VerticalAlignment="Center" Click="ShowMessageBox_Click"/>
    </Grid>
</metro:MetroWindow>

步骤 4: 创建 MainWindow.xaml.cs

在 MainWindow.xaml.cs 中，添加按钮点击事件处理程序来显示消息框：

using MahApps.Metro.Controls;
using MahApps.Metro.Controls.Dialogs;
using System.Windows;

namespace YourNamespace
{
    public partial class MainWindow : MetroWindow
    {
        public MainWindow()
        {
            InitializeComponent();
        }

        private async void ShowMessageBox_Click(object sender, RoutedEventArgs e)
        {
            // 显示消息框
            await this.ShowMessageAsync("Title", "This is a message box created using MahApps.Metro.");
        }
    }
}

完整示例

以下是完整的示例代码，展示了如何使用 MahApps.Metro 创建一个消息框：

App.xaml

<Application x:Class="YourNamespace.App"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             StartupUri="MainWindow.xaml">
    <Application.Resources>
        <ResourceDictionary>
            <ResourceDictionary.MergedDictionaries>
                <ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Controls.xaml" />
                <ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Fonts.xaml" />
                <ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Colors.xaml" />
                <ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Accents/Blue.xaml" />
                <ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Accents/BaseLight.xaml" />
            </ResourceDictionary.MergedDictionaries>
        </ResourceDictionary>
    </Application.Resources>
</Application>

MainWindow.xaml

<metro:MetroWindow x:Class="YourNamespace.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:metro="http://metro.mahapps.com/winfx/xaml/controls"
                   mc:Ignorable="d"
                   Title="MainWindow" Height="350" Width="525">
    <Grid>
        <Button Content="Show MessageBox" HorizontalAlignment="Center" VerticalAlignment="Center" Click="ShowMessageBox_Click"/>
    </Grid>
</metro:MetroWindow>

MainWindow.xaml.cs

using MahApps.Metro.Controls;
using MahApps.Metro.Controls.Dialogs;
using System.Windows;

namespace YourNamespace
{
    public partial class MainWindow : MetroWindow
    {
        public MainWindow()
        {
            InitializeComponent();
        }

        private async void ShowMessageBox_Click(object sender, RoutedEventArgs e)
        {
            // 显示消息框
            await this.ShowMessageAsync("Title", "This is a message box created using MahApps.Metro.");
        }
    }
}

通过上述步骤，你可以在 WPF 应用程序中使用 MahApps.Metro 创建一个现代化的消息框。你可以根据需要自定义消息框的标题、内容和按钮。