添加项目文件。

VisionFrame/Nodes/LineNode.xaml

@@ -0,0 +1,26 @@
+<UserControl x:Class="VisionFrame.Nodes.LineNode"
+             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:VisionFrame.Nodes"
+             mc:Ignorable="d" 
+             d:DesignHeight="450" d:DesignWidth="800">
+    <UserControl.Resources>
+        <BooleanToVisibilityConverter x:Key="b2v"/>
+    </UserControl.Resources>
+    <Grid>
+        <Button Width="14" Height="14" 
+                Margin="{Binding CancelLocation,RelativeSource={RelativeSource AncestorType=UserControl}}"
+                Foreground="White"
+                    Content="&#xe660;"
+                    FontFamily="{DynamicResource Iconfont}"
+                    Style="{DynamicResource DeleteElementButtonStyle}"
+                    Visibility="{Binding RelativeSource={RelativeSource AncestorType=UserControl},
+                                         Path=IsMouseOver,
+                                         Converter={StaticResource b2v}}"
+                    Command="{Binding DataContext.DeleteElementCommand,RelativeSource={RelativeSource AncestorType=ItemsControl,Mode=FindAncestor}}"
+                    CommandParameter="{Binding}"/>
+
+    </Grid>
+</UserControl>