新增业务打印绑定功能，整合打印模板与业务数据的映射配置，优化打印数据生成逻辑。新增免密接口，支持桌面端打印模板的查询与列表展示，提升用户体验和系统的实时数据同步能力。同时，重构相关控制器以增强系统的可维护性和扩展性。
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using System.Collections.ObjectModel;
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using System.Windows;
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using Prism.Commands;
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using Prism.Events;
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using YY.Admin.Core;
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using YY.Admin.Core.Entity;
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using YY.Admin.Core.Events;
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using YY.Admin.Core.Services;
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using YY.Admin.Views.Print;
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namespace YY.Admin.ViewModels.Print;
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/// <summary>业务打印绑定列表（只读，本地缓存 + 同步）</summary>
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public class PrintBizTemplateBindListViewModel : BaseViewModel
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{
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private readonly IPrintBizTemplateBindService _bindService;
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private SubscriptionToken? _changeToken;
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private List<PrintBizTemplateBind> _all = new();
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public ObservableCollection<PrintBizTemplateBind> Items { get; } = new();
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private string _statusMessage = string.Empty;
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public string StatusMessage
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{
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get => _statusMessage;
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set => SetProperty(ref _statusMessage, value);
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}
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private string? _filterBizCode;
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public string? FilterBizCode
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{
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get => _filterBizCode;
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set => SetProperty(ref _filterBizCode, value);
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}
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private string? _filterBizName;
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public string? FilterBizName
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{
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get => _filterBizName;
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set => SetProperty(ref _filterBizName, value);
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}
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private string? _filterTemplateCode;
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public string? FilterTemplateCode
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{
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get => _filterTemplateCode;
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set => SetProperty(ref _filterTemplateCode, value);
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}
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public DelegateCommand SearchCommand { get; }
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public DelegateCommand ResetCommand { get; }
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public DelegateCommand<PrintBizTemplateBind> DetailCommand { get; }
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public PrintBizTemplateBindListViewModel(
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IPrintBizTemplateBindService bindService,
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IContainerExtension container,
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IRegionManager regionManager) : base(container, regionManager)
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{
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_bindService = bindService;
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SearchCommand = new DelegateCommand(ApplyFilter);
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ResetCommand = new DelegateCommand(() =>
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{
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FilterBizCode = null;
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FilterBizName = null;
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FilterTemplateCode = null;
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ApplyFilter();
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});
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DetailCommand = new DelegateCommand<PrintBizTemplateBind>(OpenDetail);
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_changeToken = _eventAggregator
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.GetEvent<PrintBizTemplateBindChangedEvent>()
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.Subscribe(_ => { RefreshSilentlyAsync().ConfigureAwait(false); }, ThreadOption.UIThread);
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ShowCached();
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_ = RefreshSilentlyAsync();
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}
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private void ShowCached()
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{
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var cached = _bindService.GetCached();
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if (cached.Count == 0) return;
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_all = cached.ToList();
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ApplyFilter();
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UpdateStatus();
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}
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private async Task RefreshSilentlyAsync()
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{
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try
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{
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var list = await _bindService.RefreshCacheAsync().ConfigureAwait(false);
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await Application.Current.Dispatcher.InvokeAsync(() =>
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{
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_all = list.ToList();
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ApplyFilter();
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UpdateStatus();
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});
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}
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catch
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{
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var cached = _bindService.GetCached();
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if (cached.Count > 0 && _all.Count == 0)
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{
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await Application.Current.Dispatcher.InvokeAsync(() =>
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{
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_all = cached.ToList();
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ApplyFilter();
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UpdateStatus();
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});
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}
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}
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}
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private void ApplyFilter()
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{
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IEnumerable<PrintBizTemplateBind> result = _all;
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if (!string.IsNullOrWhiteSpace(FilterBizCode))
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result = result.Where(x => (x.BizCode ?? string.Empty)
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.Contains(FilterBizCode, StringComparison.OrdinalIgnoreCase));
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if (!string.IsNullOrWhiteSpace(FilterBizName))
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result = result.Where(x => (x.BizName ?? string.Empty)
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.Contains(FilterBizName, StringComparison.OrdinalIgnoreCase));
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if (!string.IsNullOrWhiteSpace(FilterTemplateCode))
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result = result.Where(x => (x.TemplateCode ?? string.Empty)
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.Contains(FilterTemplateCode, StringComparison.OrdinalIgnoreCase));
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var filtered = result.ToList();
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for (int i = Items.Count - 1; i >= 0; i--)
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{
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if (!filtered.Any(t => t.Id == Items[i].Id))
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Items.RemoveAt(i);
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}
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for (int i = 0; i < filtered.Count; i++)
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{
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var item = filtered[i];
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var existingIdx = -1;
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for (int j = 0; j < Items.Count; j++)
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{
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if (Items[j].Id == item.Id) { existingIdx = j; break; }
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}
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if (existingIdx < 0)
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Items.Insert(i, item);
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else
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{
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if (existingIdx != i) Items.Move(existingIdx, i);
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Items[i] = item;
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}
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}
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}
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private void UpdateStatus()
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{
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var hasFilter = !string.IsNullOrWhiteSpace(FilterBizCode)
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|| !string.IsNullOrWhiteSpace(FilterBizName)
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|| !string.IsNullOrWhiteSpace(FilterTemplateCode);
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StatusMessage = hasFilter
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? $"筛选结果 {Items.Count} / {_all.Count} 条"
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: _all.Count > 0
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? $"共 {_all.Count} 条绑定（缓存于本地，可离线查看）"
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: "暂无数据（联网后将自动同步）";
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}
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private async void OpenDetail(PrintBizTemplateBind? row)
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{
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if (row == null) return;
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PrintBizTemplateBind model = row;
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try
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{
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var fresh = await _bindService.GetByIdAsync(row.Id ?? "").ConfigureAwait(false);
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if (fresh != null) model = fresh;
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}
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catch { /* 使用列表行数据 */ }
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// 网络请求 continuation 可能在非 STA 线程，Window 必须在 UI 线程创建
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var app = Application.Current;
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if (app?.Dispatcher == null) return;
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await app.Dispatcher.InvokeAsync(() =>
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{
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var win = new PrintBizTemplateBindDetailWindow(model)
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{
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Owner = app.MainWindow
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};
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win.ShowDialog();
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});
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}
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}
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