合并控件

Main.Test/ViewModels/MainViewModel.cs

@@ -1,38 +1,64 @@
-using Bogus;
+using System.Collections.ObjectModel;
+using System.Collections.Specialized;
+using System.Windows;
 using MAX.Core.Logger;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
+using Prism.Commands;
+using Prism.Mvvm;
 using Trade.Framework.Services;
 
 namespace Main.Test.ViewModels;
 
-internal class MainViewModel
+internal class MainViewModel : BindableBase
 {
-	private readonly ILoggerFacade _logger;
-	public List<ItemInfo> Data { get; set; }
+    private List<ItemInfo> data = DemoData.Create(10000);
+    public List<ItemInfo> Data { get => data; private set => SetProperty(ref data, value); }
+    private string actionMessage = "可右键查看详情、复制编码或切换状态；默认加载 10,000 行。";
+    public string ActionMessage { get => actionMessage; private set => SetProperty(ref actionMessage, value); }
+    private ObservableCollection<ItemInfo> selectedItems = new();
+    public ObservableCollection<ItemInfo> SelectedItems
+    {
+        get => selectedItems;
+        set
+        {
+            ArgumentNullException.ThrowIfNull(value);
+            if (ReferenceEquals(selectedItems, value)) return;
+            selectedItems.CollectionChanged -= SelectionChanged;
+            SetProperty(ref selectedItems, value);
+            selectedItems.CollectionChanged += SelectionChanged;
+            RaisePropertyChanged(nameof(SelectedCount));
+        }
+    }
+    public int SelectedCount => SelectedItems.Count;
+    public int NetworkImageSize { get; set; }
+    public DelegateCommand<ItemInfo> DetailCommand { get; }
+    public DelegateCommand<ItemInfo> ConfirmCommand { get; }
+    public DelegateCommand<ItemInfo> CopyCodeCommand { get; }
 
-	public MainViewModel(ILoggerFacade logger, UserManager userManager)
-	{
-		_logger = logger;
-		_logger.Info("123123");
+    public MainViewModel(ILoggerFacade logger, UserManager userManager)
+    {
+        selectedItems.CollectionChanged += SelectionChanged;
+        DetailCommand = new(item => { if (item != null) ActionMessage = $"详情：{item.Code} · {item.Name} · ¥{item.Value} · {item.Buyer} · {item.Status}"; });
+        ConfirmCommand = new(item =>
+        {
+            if (item == null) return;
+            item.Status = item.Status == "已确认" ? "待处理" : "已确认";
+            ActionMessage = $"已更新 {item.Code}：{item.Status}";
+        });
+        CopyCodeCommand = new(item =>
+        {
+            if (item == null) return;
+            try { Clipboard.SetText(item.Code.ToString()); ActionMessage = $"已复制编码 {item.Code}"; }
+            catch (System.Runtime.InteropServices.ExternalException) { ActionMessage = "剪贴板正忙，请重试。"; }
+        });
+    }
+    private void SelectionChanged(object? sender, NotifyCollectionChangedEventArgs e) => RaisePropertyChanged(nameof(SelectedCount));
 
-
-
-		// 创建 Faker 并配置规则
-		var itemFaker = new Faker<ItemInfo>()
-			.RuleFor(x => x.Code, f => f.Random.Int(1000, 9999))           // 4位随机编码
-			.RuleFor(x => x.Name, f => f.Commerce.ProductName())           // 商品名称
-			.RuleFor(x => x.Value, f => f.Commerce.Price().ToString())     // 商品价格
-			.RuleFor(x => x.Qty, f => f.Random.Int(1, 100));              // 1-100的随机数量
-
-		// 生成单个对象
-		var singleItem = itemFaker.Generate();
-
-		// 生成100个对象
-		Data = itemFaker.Generate(1000);
-		//Data.Clear();
-	}
+    public async Task LoadAsync(int count)
+    {
+        if (count is < 1 or > 50000) throw new ArgumentOutOfRangeException(nameof(count));
+        var imageSize = NetworkImageSize;
+        var rows = await Task.Run(() => DemoData.Create(count, imageSize));
+        SelectedItems.Clear(); Data = rows;
+        ActionMessage = $"已加载 {count:N0} 行；" + (imageSize == 0 ? "本地缩略图。" : $"Picsum {imageSize}×{imageSize} 网络随机图，可见时加载。每次重新加载使用新种子。冷 / 热测试以当前页面已加载状态为准。");
+    }
 }