HaiNan/Server/ServerDeployer/PortBox.xaml

<UserControl x:Class="ServerDeployer.PortBox"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
    <TextBox x:Name="PortTextBox" Width="60" VerticalAlignment="Center" HorizontalAlignment="Center" FontSize="16" PreviewKeyDown="OnPreviewKeyDown" LostKeyboardFocus="OnLostKeyboardFocus" TextChanged="OnTextChanged"/>
</UserControl>