serein-flow/Workbench/Node/View/ExpOpNodeControl.xaml

<local:NodeControlBase x:Class="Serein.Workbench.Node.View.ExpOpNodeControl"
                         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
                         xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
                         xmlns:local="clr-namespace:Serein.Workbench.Node.View"
                        xmlns:vm="clr-namespace:Serein.Workbench.Node.ViewModel"
                        d:DataContext="{d:DesignInstance vm:ExpOpNodeControlViewModel}"
                       mc:Ignorable="d"
                       MaxWidth="300">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="*"/>
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>

        <Grid Grid.Row="0" Background="#E7EFF5" >
            <!--<Grid Grid.Row="0" >-->
            <Grid.RowDefinitions>
                <RowDefinition Height="*"/>
            </Grid.RowDefinitions>
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="auto"/>
                <ColumnDefinition Width="*"/>
                <ColumnDefinition Width="auto"/>
            </Grid.ColumnDefinitions>

            <local:ExecuteJunctionControl  Grid.Column="0"  MyNode="{Binding NodeModel}" x:Name="ExecuteJunctionControl" HorizontalAlignment="Left" Grid.RowSpan="2"/>
            <Border Grid.Column="1" BorderThickness="1" HorizontalAlignment="Stretch">
                <TextBlock Text="表达式" HorizontalAlignment="Center" VerticalAlignment="Center"/>
            </Border>
            <local:NextStepJunctionControl Grid.Column="2"  MyNode="{Binding NodeModel}"  x:Name="NextStepJunctionControl" HorizontalAlignment="Right" Grid.RowSpan="2"/>

        </Grid>
        <Grid Grid.Row="1" Background="#FEFAF4">
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="auto"/>
                <ColumnDefinition Width="*"/>
                <ColumnDefinition Width="auto"/>
            </Grid.ColumnDefinitions>
            <local:ArgJunctionControl  Grid.Column="0" x:Name="ArgJunctionControl" ArgIndex="0" MyNode="{Binding NodeModel}" />
            <TextBox Grid.Column="1" IsEnabled="{Binding IsEnabledOnView}" Text="{Binding NodeModel.Expression, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" HorizontalAlignment="Stretch"></TextBox>
            <local:ResultJunctionControl Grid.Column="2"  MyNode="{Binding NodeModel}" x:Name="ResultJunctionControl" HorizontalAlignment="Right"/>
        </Grid>

    </Grid>
</local:NodeControlBase>