修复DataGrid列绑定是否显示的问题

Extensions/BindingProxy.cs

@@ -0,0 +1,22 @@
+using System.Windows;
+
+namespace PMSWPF.Extensions
+{
+    public class BindingProxy : Freezable
+    {
+        // Using a DependencyProperty as the backing store for Data.  This enables animation, styling, binding, etc...
+        public static readonly DependencyProperty DataProperty =
+            DependencyProperty.Register("Data", typeof(object), typeof(BindingProxy), new UIPropertyMetadata(null));
+
+        public object Data
+        {
+            get { return (object)GetValue(DataProperty); }
+            set { SetValue(DataProperty, value); }
+        }
+
+        protected override Freezable CreateInstanceCore()
+        {
+            return new BindingProxy();
+        }
+    }
+}

Views/VariableTableView.xaml

@@ -16,6 +16,7 @@
              d:DesignHeight="600"
              d:DesignWidth="800">
     <UserControl.Resources>
+        <ex:BindingProxy x:Key="proxy" Data="{Binding}" />
         <ex:EnumBindingSource x:Key="signalType"
                               EnumType="{x:Type en:SignalType}" />
         <ex:EnumBindingSource x:Key="protocolType"
@@ -258,9 +259,17 @@
                                     Binding="{Binding Name}" />
                 <DataGridTextColumn Header="描述"
                                     Binding="{Binding Description}" />
+                <!-- <DataGridTextColumn IsReadOnly="True" -->
+                <!--                     Header="节点ID" -->
+                <!--                     Binding="{Binding NodeId}" /> -->
                 <DataGridTextColumn IsReadOnly="True"
-                                    Header="节点ID"
+                Header="S7地址"
-                                    Binding="{Binding NodeId}" />
+                Visibility="{Binding Source={StaticResource proxy}, Path=Data.IsS7ProtocolSelected, Converter={StaticResource BooleanToVisibilityConverter}}"
+                Binding="{Binding S7Address}" />
+                <DataGridTextColumn IsReadOnly="True"
+                                    Header="OPCUA节点ID"
+                                    Visibility="{Binding Source={StaticResource proxy}, Path=Data.IsOpcUaProtocolSelected, Converter={StaticResource BooleanToVisibilityConverter}}"
+                                    Binding="{Binding OpcUaNodeId}" />
                 <!-- <DataGridTextColumn IsReadOnly="True" -->
                 <!--                     Header="协议类型" -->
                 <!--                     Binding="{Binding ProtocolType}" /> -->
@@ -288,6 +297,7 @@
                     </DataGridTemplateColumn.CellEditingTemplate>
                 </DataGridTemplateColumn>
                 <DataGridTemplateColumn Header="轮询频率"
+                                        
                                         SortMemberPath="PollLevelType">
                     <DataGridTemplateColumn.CellTemplate>
                         <DataTemplate>
@@ -308,9 +318,7 @@
                         </DataTemplate>
                     </DataGridTemplateColumn.CellEditingTemplate>
                 </DataGridTemplateColumn>
-                <DataGridTextColumn IsReadOnly="True"
+                
-                                    Header="S7地址"
-                                    Binding="{Binding S7Address}" />
                 <DataGridTextColumn IsReadOnly="True"
                                     Header="当前值"
                                     Binding="{Binding DataValue}" />