添加添加数据库服务器表

修改扫码连接修复扫码闪退问题

NotificationPage.xaml.cs

@@ -0,0 +1,93 @@
+using SunlightAggregationTerminal.Models;
+using System.Data;
+using System.Linq;
+
+namespace SunlightAggregationTerminal;
+
+public partial class NotificationPage : ContentPage
+{
+    public NotificationItem NoticeItem { get; set; } = new NotificationItem();
+    public NotificationItem MessageItem { get; set; } = new NotificationItem();
+    public NotificationItem SystemItem { get; set; } = new NotificationItem();
+
+    public NotificationPage()
+	{
+		InitializeComponent();     
+        this.BindingContext = this; 
+    }
+
+    private void ContentPage_Loaded(object sender, EventArgs e)
+    {
+        LoadSummaryData();
+    }
+
+    private void LoadSummaryData()
+    {
+       var allItems = DataService.GetAllItems();
+
+        // 筛选出 Type 为 Notice 的数据，并取第一条
+        // 对应 DataTable 的 Select("Type = ...").First()
+        var noticeItem = allItems.FirstOrDefault(x => x.Type == MsgType.Notice);
+
+        // 读取数据 (注意判空，防止找不到数据时报错)
+        if (noticeItem != null)
+        {
+            NoticeItemTitle.Text = noticeItem.Title;
+            NoticeItemContent.Text = noticeItem.Content;
+        }
+        else
+        {
+            // 处理没有找到数据的情况
+            NoticeItemTitle.Text = "暂无通知";
+            NoticeItemContent.Text = "通知";
+        }
+
+        var messageItem = allItems.FirstOrDefault(x => x.Type == MsgType.Message);
+
+        // 读取数据 (注意判空，防止找不到数据时报错)
+        if (messageItem != null)
+        {
+            MessageItemTitle.Text = messageItem.Title;
+            MessageItemContent.Text = messageItem.Content;
+        }
+        else
+        {
+            // 处理没有找到数据的情况
+            MessageItemTitle.Text = "暂无通知";
+            MessageItemContent.Text = "信息";
+        }
+        var systemItem = allItems.FirstOrDefault(x => x.Type == MsgType.System);
+
+        // 读取数据 (注意判空，防止找不到数据时报错)
+        if (systemItem != null)
+        {
+            SystemItemTitle.Text = systemItem.Title;
+            SystemItemContent.Text = systemItem.Content;
+        }
+        else
+        {
+            // 处理没有找到数据的情况
+            SystemItemTitle.Text = "暂无通知";
+            SystemItemContent.Text = "系统信息";
+        }
+
+    }
+
+    // 点击跳转到独立页面
+   private async void OnNoticeTapped(object sender, TappedEventArgs e)
+    {
+        await Navigation.PushAsync(new NotificationView.NoticePage());
+    }
+
+    private async void OnMessageTapped(object sender, TappedEventArgs e)
+    {
+        await Navigation.PushAsync(new NotificationView.MessagePage());
+    }
+
+    private async void OnSystemTapped(object sender, TappedEventArgs e)
+    {
+        await Navigation.PushAsync(new NotificationView.SystemPage());
+    }
+
+
+}