ProxySU/ProxySU_Core/Views/MainWindow.xaml

<metro:MetroWindow x:Class="ProxySU_Core.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:ProxySU_Core"
        mc:Ignorable="d"
        BorderThickness="1"
        xmlns:metro="http://metro.mahapps.com/winfx/xaml/controls"
        xmlns:iconPacks="http://metro.mahapps.com/winfx/xaml/iconpacks"
        xmlns:mah="clr-namespace:MahApps.Metro.Controls;assembly=MahApps.Metro"
        TextElement.FontSize="14"
        Title="ProxySU Core" Height="800" Width="1200">

    <mah:MetroWindow.LeftWindowCommands>
        <mah:WindowCommands>
            <Button Click="LaunchGitHubSite" ToolTip="Open up the GitHub site">
                <iconPacks:PackIconModern 
                    Width="22"
                    Height="22"
                    Kind="SocialGithubOctocat" />
            </Button>
        </mah:WindowCommands>
    </mah:MetroWindow.LeftWindowCommands>

    <mah:MetroWindow.RightWindowCommands>
        <mah:WindowCommands>
            <StackPanel Orientation="Horizontal" Margin="0,0,20,0">
                <TextBlock Text="{DynamicResource LanguageText}" VerticalAlignment="Center" Margin="0,0,20,0" />
                <ComboBox 
                    SelectionChanged="ChangeLanguage" 
                    x:Name="cmbLanguage" 
                    SelectedIndex="0">
                    <ComboBoxItem x:Name="zh_cn" Content="{DynamicResource LanguageChinese}"></ComboBoxItem>
                    <ComboBoxItem x:Name="en" Content="{DynamicResource LanguageEnglish}"></ComboBoxItem>
                </ComboBox>
            </StackPanel>
        </mah:WindowCommands>
    </mah:MetroWindow.RightWindowCommands>

    <Window.Resources>
        <DataTemplate x:Key="HostTagTemplate">
            <TextBlock Text="{Binding Tag}" />
        </DataTemplate>
    </Window.Resources>


    <Grid>
        <TabControl
            Background="#fff"
            Style="{StaticResource MaterialDesignNavigatilRailTabControl}"
            Padding="10">
            <TabItem
                Width="160"
                Style="{StaticResource MaterialDesignNavigationRailTabItem}"
                Header="{DynamicResource TabItemHeaderAppDeployment}">
                <StackPanel Orientation="Vertical">

                    <StackPanel HorizontalAlignment="Left" Orientation="Horizontal">
                        <Button
                        Content="{DynamicResource AddHost}"
                        Click="AddHost"
                        Width="100"/>
                    </StackPanel>

                    <DataGrid ItemsSource="{Binding Records}"
                              Margin="0,20,0,0"
                              IsReadOnly="True"
                              x:Name="DataGrid"
                              CellStyle="{StaticResource DataGridCell}"
                              Style="{StaticResource MaterialDesignDataGrid}"
                              ColumnHeaderStyle="{StaticResource DataGridColumnHeader}"
                              SelectionUnit="FullRow"
                              BorderBrush="#eee"
                              BorderThickness="1"
                              AutoGenerateColumns="False">
                        <DataGrid.Columns>
                            <DataGridTextColumn Header="{DynamicResource HostTag}"  
                                                Binding="{Binding Path=Host.Tag}" 
                                                Width="150"/>
                            <DataGridTextColumn Header="{DynamicResource HostAddress}"  
                                                Binding="{Binding Path=Host.Address}"
                                                Width="200"/>
                            <DataGridTextColumn Header="{DynamicResource HostPort}"  
                                                Binding="{Binding Path=Host.Port}" 
                                                Width="100"/>
                            <DataGridTextColumn Header="{DynamicResource ProxyGroupName}" 
                                                Binding="{Binding Path=Host.Proxy.Type}"
                                                Width="100"/>
                            <DataGridTemplateColumn>
                                <DataGridTemplateColumn.Header>
                                    <TextBlock Text="{DynamicResource Actions}" />
                                </DataGridTemplateColumn.Header>
                                <DataGridTemplateColumn.CellTemplate>
                                    <DataTemplate>
                                        <StackPanel Orientation="Horizontal">
                                            <Button Content="{DynamicResource Connect}" FontSize="12" Height="24" Click="Connect" />
                                            <Button Content="{DynamicResource Edit}" FontSize="12" Height="24" Margin="10,0,0,0" Click="EditHost" />
                                            <Button Content="{DynamicResource Delete}" FontSize="12"  Height="24" Margin="10,0,0,0" Click="DeleteHost" />
                                        </StackPanel>
                                    </DataTemplate>
                                </DataGridTemplateColumn.CellTemplate>
                            </DataGridTemplateColumn>
                        </DataGrid.Columns>
                    </DataGrid>


                </StackPanel>
            </TabItem>

            <TabItem    
                Width="160"          
                Style="{StaticResource MaterialDesignNavigationRailTabItem}"
                Header="V2ray">
                <StackPanel>
                    <TextBox />
                </StackPanel>
            </TabItem>
        </TabControl>
    </Grid>
</metro:MetroWindow>