测试

头罩视野slove/头罩视野/Views/PageTest.xaml.cs

@@ -45,6 +45,18 @@ namespace 头罩视野.Views
             testTimer.Interval = TimeSpan.FromMilliseconds(500); // 500ms = 0.5秒
             testTimer.Tick += Timer_Tick;
 
+
+            //// 判断连接
+            if (!ModbusHelper.IsConnected)
+            {
+                MessageBox.Show("未连接");
+                return;
+            }
+
+            // 获取客户端
+            var client = ModbusHelper.TcpClient;
+
+
         }
 
         //复位btn
@@ -346,6 +358,8 @@ namespace 头罩视野.Views
             _timer.Start();
             ma = new Function(_modbusMaster);
             c = new DataChange();
+
+          
         }
     }
 }

头罩视野slove/头罩视野/Views/RecordPage.xaml.cs

@@ -85,10 +85,20 @@ namespace 头罩视野.Views
 
         private void Page_Loaded(object sender, RoutedEventArgs e)
         {
-           //进入页面是否要保留原来的数据？？？？，
+            // 判断连接
+            if (!ModbusHelper.IsConnected)
+            {
+                MessageBox.Show("未连接");
+                return;
+            }
+
+            // 获取客户端
+            var client = ModbusHelper.TcpClient;
+            //进入页面是否要保留原来的数据？？？？，
             RecordDataGrid.ItemsSource = null;
             RecordDataGrid.ItemsSource = TestDataStore.Records;
 
+
         }
 
         private void GoHome(object s, RoutedEventArgs e) => NavigationService.Content = null;

头罩视野slove/头罩视野/Views/VisiData.xaml.cs

@@ -31,6 +31,17 @@ namespace 头罩视野.Views
             InitializeComponent();
  
             _timer = InitDispatcherTimer();
+
+
+            // 判断连接
+            if (!ModbusHelper.IsConnected)
+            {
+                MessageBox.Show("未连接");
+                return;
+            }
+
+            // 获取客户端
+            var client = ModbusHelper.TcpClient;
         }
         //复位btn
         private void Button_Click_Reset(object sender, RoutedEventArgs e)
@@ -251,6 +262,8 @@ namespace 头罩视野.Views
         
         private void Page_Loaded(object sender, RoutedEventArgs e)
         {
+           
+
             _timer.Start();
 
             ma = new Function(_modbusMaster);