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

Models/DataSource.cs

@@ -0,0 +1,58 @@
+using System;
+using System.Collections.Generic;
+using System.Data;
+using System.Text;
+using System.Linq;
+
+namespace SunlightAggregationTerminal.Models
+{
+    // 定义枚举
+    public enum MsgType
+    {
+        Notice, // 通知
+        Message, // 信息
+        System  // 系统
+    }
+
+    // 定义显示用的模型
+    public class NotificationItem
+    {
+        public Int64 Id { get; set; }
+        public string? Title { get; set; }
+        public string? Content { get; set; }
+        public DateTime Time { get; set; }
+        public MsgType Type { get; set; }
+    }
+
+    public static class DataService
+    {
+        public static DataSet? data = AppModels.Select("select * from Notification Where Time > '" + DateTime.Now.AddDays(-30) + "'");
+
+        // 直接返回 List
+        public static List<NotificationItem> _NotificationData = new List<NotificationItem>();
+        public static List<NotificationItem> GetAllItems()
+        {
+            _NotificationData.Clear();
+
+            if (data != null)
+            {
+                foreach (DataRow dr in data.Tables[0].Rows)
+                {
+                    _NotificationData.Add(new NotificationItem
+                    {
+                        Id = dr.Field<Int64>("Id"),
+                        Title = dr.Field<string>("Title") ,
+                        Content = dr.Field<string>("Content"),
+                        Time = DateTime.Parse(dr.Field<string>("Time")!),
+                        Type = (MsgType)dr.Field<Int64>("Type")
+                    });
+                }
+            }
+
+            // 倒序返回
+            return _NotificationData.OrderByDescending(x => x.Time).ToList();
+        }
+
+
+    }
+}