public static void UnitTest_LongRefTest()
{
long stackof = 4200000000L;
long stackl = 24;
var heapLong = new LongHolder();
ILRuntimeTest.TestFramework.ClassInheritanceTest.TestLongRef(ref stackof); //无论代码是否binding，输出TestLongRef:-94967296
ILRuntimeTest.TestFramework.ClassInheritanceTest.TestLongRef(ref stackl); //无论代码是否binding，输出TestLongRef:24
ILRuntimeTest.TestFramework.ClassInheritanceTest.TestLongRef(ref heapLong.lv); //若代码binding，输出TestLongRef:4（或者其他莫名的值），否则输出TestLongRef:0，换成ref int也一样，class对象的话没测试过。
}
public void SelectEntities()
{
if (SearchCriteria != null)
{
try
{
long brandId = SelectedItem?.Id ?? -1L;
Entities.Clear();
LongHolder position = new LongHolder {
Value = 0
};
List <BrandItem> loadedEntities =
GetItems().Select(x => new BrandItem(x)
{
Position = position.Value++
}).ToList();
if (SearchCriteria != null)
{
loadedEntities.ForEach(
x => x.Selected = SearchCriteria.SelectedBrandItems.Any(s => s.Id == x.Id && s.Selected));
SearchCriteria.BrandItems = loadedEntities;
SearchCriteria.SelectedBrandItems.Clear();
Entities.Where(x => x.Selected).ToList().ForEach(x => SearchCriteria.SelectedBrandItems.Add(x));
}
BrandItem brandItem = loadedEntities.FirstOrDefault(x => x != null && x.Id == brandId) ?? Entities.FirstOrDefault();
Application.Current.Dispatcher.Invoke(
() =>
{
Entities.AddRange(loadedEntities);
OnPropertyChanged(nameof(Entities));
SelectedItem = brandItem;
SearchCriteria.BrandComplited();
});
}
catch (Exception e)
{
;
//throw;
}
}
}
private List <CatalogItem> GetItems(int startRow, int maxRows)
{
if (oldMaximumRows != MaximumRows || SearchCriteria.IsModified || SearchCriteria.EnabledAdvancedSearch)
{
cacheCatalogItems.Clear();
oldMaximumRows = MaximumRows;
}
List <CatalogItem> items;
if (!cacheCatalogItems.TryGetValue(startRow, out items))
{
LongHolder position = new LongHolder {
Value = startRow
};
List <CatalogItemEntity> entityItems = GetItems()
.OrderBy(x => x.Name)
.Skip(startRow)
.Take(maxRows)
.ToList();
items = entityItems
.Select(x => new CatalogItem(x, DataService, ImageService)
{
Position = ++position.Value
})
.ToList();
if (cacheCatalogItems.Count > 50)
{
var firstItems = cacheCatalogItems.FirstOrDefault();
cacheCatalogItems.Remove(firstItems.Key);
}
cacheCatalogItems.Add(startRow, items);
}
return(items);
}
