public override void OnNavigatedTo(INavigationParameters parameters)
{
base.OnNavigatedTo(parameters);
try
{
if (parameters.ContainsKey("Bill"))
{
if (ReferencePage.Equals("AllocationBillPage"))
{
this.ShowGift = false;
parameters.TryGetValue("Bill", out AllocationBillModel bill);
if (bill != null)
{
this.Bill = bill;
}
}
}
if (ReferencePage == "InventoryOPBillPage")
{
ShowStockQty = false;
ShowGift = false;
}
if (ReferencePage == "PurchaseOrderBillPage")
{
ShowStockQty = true;
ShowGift = false;
}
//盘点单
if (ReferencePage == "InventoryOPBillPage")
{
ProductSeries.ToList().ForEach(p =>
{
TempProductSeries.Add(p);
});
}
}
catch (Exception ex)
{
Crashes.TrackError(ex);
}
}
public SelectProductPageViewModel(INavigationService navigationService,
IProductService productService,
IDialogService dialogService) : base(navigationService, dialogService)
{
Title = "选择商品";
_navigationService = navigationService;
_dialogService = dialogService;
_productService = productService;
//只显库存商品
this.WhenAnyValue(x => x.UsableQuantity)
.Skip(1)
.Subscribe(s =>
{
((ICommand)Load)?.Execute(null);
this.ForceRefresh = true;
}).DisposeWith(DeactivateWith);
//我的收藏
this.WhenAnyValue(x => x.UsableFavorite)
.Skip(1)
.Subscribe(s =>
{
((ICommand)Load)?.Execute(null);
this.ForceRefresh = true;
}).DisposeWith(DeactivateWith);
//搜索
this.WhenAnyValue(x => x.Filter.SerchKey)
.Where(s => !string.IsNullOrEmpty(s))
.Select(s => s)
.Throttle(TimeSpan.FromSeconds(2), RxApp.MainThreadScheduler)
.Subscribe(s =>
{
((ICommand)SerchCommand)?.Execute(s);
}).DisposeWith(DeactivateWith);
this.SerchCommand = ReactiveCommand.Create <string>(e =>
{
if (string.IsNullOrEmpty(Filter.SerchKey))
{
this.Alert("请输入关键字！");
return;
}
((ICommand)Load)?.Execute(null);
});
//Load
this.Load = ReactiveCommand.Create(async() =>
{
try
{
ItemTreshold = 1;
DataVewEnable = false;
NullViewEnable = true;
var items = await GetProductsPage(0, 50);
if (items != null && items.Any())
{
//清除列表
ProductSeries?.Clear();
foreach (var item in items)
{
if (ProductSeries.Count(s => s.ProductId == item.ProductId) == 0)
{
ProductSeries.Add(item);
}
}
}
}
catch (Exception ex) { Crashes.TrackError(ex); }
finally
{
DataVewEnable = true;
NullViewEnable = false;
}
});
//以增量方式加载数据
this.ItemTresholdReachedCommand = ReactiveCommand.Create(async() =>
{
using (var dig = UserDialogs.Instance.Loading("加载中..."))
{
try
{
int pageIdex = ProductSeries.Count / 50;
var items = await GetProductsPage(pageIdex, PageSize);
var previousLastItem = ProductSeries.Last();
if (items != null)
{
foreach (var item in items)
{
if (ProductSeries.Count(s => s.ProductId == item.ProductId) == 0)
{
ProductSeries.Add(item);
}
}
if (items.Count() == 0 || items.Count() == ProductSeries.Count)
{
ItemTreshold = -1;
}
}
}
catch (Exception ex)
{
Crashes.TrackError(ex);
ItemTreshold = -1;
}
}
}, this.WhenAny(x => x.ProductSeries, x => x.GetValue().Count > 0));
//初始类别
this.InitCatagory = ReactiveCommand.CreateFromTask(async() =>
{
try
{
var result = await _productService.GetAllCategoriesAsync(true, new System.Threading.CancellationToken());
if (result != null && result.Any())
{
var categories = result.ToList();
if (categories != null && categories.Any())
{
foreach (var op in categories)
{
op.SelectedCommand = ReactiveCommand.Create <int>(r =>
{
op.Selected = !op.Selected;
});
}
this.BindCategories = new ObservableCollection <CategoryModel>(categories);
}
}
}
catch (Exception ex) { Crashes.TrackError(ex); }
});
//选择类别
this.WhenAnyValue(x => x.Selecter).Throttle(TimeSpan.FromMilliseconds(500))
.Skip(1)
.Where(x => x != null)
.SubOnMainThread(x =>
{
if (x != null)
{
Filter.CatagoryIds = new int[] { x.Id };
this.ForceRefresh = true;
foreach (var op in this.BindCategories)
{
op.Selected = false;
}
x.Selected = !x.Selected;
((ICommand)Load)?.Execute(null);
}
Selecter = null;
})
.DisposeWith(DeactivateWith);
this.WhenAnyValue(x => x.ReferencePage)
.Where(x => !string.IsNullOrEmpty(x))
.Subscribe(x =>
{
this.ShowStockQty = !(x.Equals("InventoryOPBillPage") || x.Equals("InventoryBillPage"));
}).DisposeWith(DeactivateWith);
//选择礼品
this.SelectGiftsCommand = ReactiveCommand.Create(async() =>
{
await this.NavigateAsync("SelectGiftsPage", ("WareHouse", WareHouse), ("Terminaler", this.Terminal));
});
//保存选择商品
this.SubmitDataCommand = ReactiveCommand.CreateFromTask <object>(async e =>
{
if (string.IsNullOrEmpty(ReferencePage))
{
await _navigationService.GoBackAsync();
return;
}
var products = ProductSeries.Select(p => p).Where(p => p.Selected == true).ToList();
if (products.Count == 0)
{
this.Alert("请选择商品项目");
return;
}
if (ReferencePage == nameof(InventoryReportPage))
{
//添加上报商品
await this.NavigateAsync(nameof(AddReportProductPage),
("Reference", ReferencePage),
("Products", products));
}
else if (ReferencePage == nameof(AllocationBillPage))
{
if (this.Bill == null)
{
this.Alert("单据不能关联，请确保参数");
return;
}
//添加调拨商品
await this.NavigateAsync(nameof(AddAllocationProductPage),
("Bill", Bill),
("Reference", ReferencePage),
("Products", products));
}
else if (ReferencePage == nameof(BackStockBillPage))
{
//添加回库调拨单商品
await this.NavigateAsync(nameof(AddBackStockBillPage),
("Reference", ReferencePage),
("Products", products));
}
else if (ReferencePage == nameof(TrackAllocationBillPage))
{
//添加回库调拨单商品
await this.NavigateAsync(nameof(AddAllocationProductPage),
("Reference", ReferencePage),
("Products", products));
}
else if (ReferencePage == nameof(CostContractBillPage))
{
//添加合同商品
await this.NavigateAsync(nameof(AddCostContractProductPage),
("Reference", ReferencePage),
("Products", products));
}
else if (ReferencePage == nameof(InventoryOPBillPage) || ReferencePage == nameof(InventoryBillPage))
{
//追加商品
if (TempProductSeries.Any())
{
var temps = TempProductSeries.ToList();
foreach (var tp in temps)
{
if (products.Where(s => s.ProductId == tp.ProductId).Count() == 0)
{
products.Add(tp);
}
}
}
//添加盘点商品
await this.NavigateAsync(nameof(AddInventoryProductPage),
("Reference", ReferencePage),
("WareHouse", WareHouse),
("Products", products));
}
else if (ReferencePage == nameof(FilterPage))
{
//过滤
await _navigationService.GoBackAsync(
("Filter", Filter),
("Reference", ReferencePage),
("Products", products));
}
else if (ReferencePage == nameof(PurchaseOrderBillPage))
{
//添加采购商品
await this.NavigateAsync(nameof(AddPurchaseProductPage),
("WareHouse", WareHouse),
("Reference", ReferencePage),
("Products", products)
);
}
else if (ReferencePage == nameof(ExchangeBillPage))
{
//添加换货商品
await this.NavigateAsync(nameof(AddExchangeProductPage),
("WareHouse", WareHouse),
("Reference", ReferencePage),
("Products", products)
);
}
else
{
//添加单据商品
await this.NavigateAsync($"{nameof(AddProductPage)}",
("WareHouse", WareHouse),
("Reference", ReferencePage),
("Products", products)
);
}
});
//收藏
this.FavoriteCommand = ReactiveCommand.Create <ProductModel>(p =>
{
try
{
var ps = Settings.FavoriteProducts;
this.Filter.SerchKey = "";
if (!p.Favorited)
{
if (!ps.Select(s => s.ProductId).Contains(p.ProductId))
{
p.Favorited = true;
ps.Add(p);
Settings.FavoriteProducts = ps;
_dialogService.ShortAlert("收藏成功！");
}
}
else
{
var cur = ps.Where(s => s.ProductId == p.ProductId).FirstOrDefault();
if (cur != null)
{
cur.Favorited = false;
p.Favorited = false;
ps.Remove(cur);
Settings.FavoriteProducts = ps;
_dialogService.ShortAlert("收藏已移除！");
}
}
if (UsableFavorite)
{
if (ProductSeries != null && ProductSeries.Any())
{
var reload = ProductSeries.Where(s => s.Favorited == true).ToList();
if (reload != null && reload.Any())
{
this.ProductSeries = new ObservableCollection <ProductModel>(reload);
}
else
{
this.UsableFavorite = false;
}
}
}
}
catch (Exception ex)
{
Crashes.TrackError(ex);
}
});
this.BindBusyCommand(Load);
this.Load.ThrownExceptions.Subscribe(ex => { Debug.Print(ex.StackTrace); }).DisposeWith(this.DeactivateWith);
this.ItemTresholdReachedCommand.ThrownExceptions.Subscribe(ex => { Debug.Print(ex.StackTrace); }).DisposeWith(this.DeactivateWith);
this.InitCatagory.ThrownExceptions.Subscribe(ex => { Debug.Print(ex.StackTrace); }).DisposeWith(this.DeactivateWith);
this.SelectGiftsCommand.ThrownExceptions.Subscribe(ex => { Debug.Print(ex.StackTrace); }).DisposeWith(this.DeactivateWith);
this.SubmitDataCommand.ThrownExceptions.Subscribe(ex => { Debug.Print(ex.StackTrace); }).DisposeWith(this.DeactivateWith);
this.FavoriteCommand.ThrownExceptions.Subscribe(ex => { Debug.Print(ex.StackTrace); }).DisposeWith(this.DeactivateWith);
}