WPF串口连接预置界面XAML代码，方便使用

<Window x:Class="robot.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:robot"
        mc:Ignorable="d"
        Title="MainWindow" Height="350" Width="825">
    <Grid>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="1*"/>
            <ColumnDefinition Width="2*"/>
        </Grid.ColumnDefinitions>
        <GroupBox Header="连接" Grid.ColumnSpan="1">
            <Grid>
                <Grid.ColumnDefinitions>
                    <ColumnDefinition Width="41*"/>
                    <ColumnDefinition Width="68*"/>
                </Grid.ColumnDefinitions>
                <Grid.RowDefinitions>
                    <RowDefinition Height="1*"/>
                    <RowDefinition Height="1*"/>
                    <RowDefinition Height="1*"/>
                    <RowDefinition Height="1*"/>
                    <RowDefinition Height="1*"/>
                    <RowDefinition Height="1*"/>
                </Grid.RowDefinitions>
                <Button x:Name="btConnect" Content="连接" HorizontalAlignment="Center" VerticalAlignment="Center" MinWidth="75" Height="30"  Click="btConnect_Click" Grid.Row="6" Grid.Column="1"/>
                <ComboBox x:Name="cbCommunicatePort"  VerticalAlignment="Top" Grid.Column="1" Grid.Row="1"/>
                <ComboBox x:Name="cbBaud"  VerticalAlignment="Center"  Grid.Column="2" Grid.Row="2"/>
                <Label x:Name="label_Copy" Content="端口" HorizontalAlignment="Left"  VerticalAlignment="Center" Grid.Column="0" Grid.Row="1" Margin="0,13" />
                <Label x:Name="label_Copy1" Content="波特率" HorizontalAlignment="Left"  VerticalAlignment="Center" Grid.Row="2"  />
                <TextBox x:Name="tbDefautlDevice" Height="24"  TextWrapping="Wrap" Text="USB 串行设备" VerticalAlignment="Center" Grid.Row="4" Grid.Column="1"/>
                <Button x:Name="btDefDevice" Content="默认设备" HorizontalAlignment="Left"  VerticalAlignment="Center" Width="75" Grid.Row="4" Grid.Column="0"  Click="btDefDevice_Click" />
                <Label x:Name="lbSerialState" Content="串口未连接" HorizontalAlignment="Left" Grid.Row="5" VerticalAlignment="Center" />

            </Grid>
        </GroupBox>
    </Grid>
</Window>