public async Task Run()
{
using var yetAnotherTokenSource = new CancellationTokenSource();
var custom = new CustomEnumerable(yetAnotherTokenSource);
await foreach (var delay in custom
.WithCancellation(yetAnotherTokenSource.Token)
.ConfigureAwait(false))
{
Console.WriteLine($"await Task.Delay({delay})");
await Task.Delay(delay)
.ConfigureAwait(false);
}
custom = new CustomEnumerable(yetAnotherTokenSource);
await foreach (var delay in custom)
{
Console.WriteLine($"await Task.Delay({delay})");
await Task.Delay(delay)
.ConfigureAwait(false);
}
}
public void VerifyIndexOfBehavior()
{
RunOnUIThread.Execute(() =>
{
var collections = new List <IEnumerable>();
collections.Add(new ObservableVectorWithUniqueIds(Enumerable.Range(0, 10)));
collections.Add(new ObservableCollection <int>(Enumerable.Range(0, 10)));
foreach (var collection in collections)
{
var dataSource = new ItemsSourceView(collection);
foreach (int i in collection)
{
Verify.AreEqual(i, dataSource.IndexOf(i));
}
Verify.AreEqual(-1, dataSource.IndexOf(11));
}
// Enumerabl.Range returns IEnumerable which does not provide IndexOf
var testingItemsSourceView = new ItemsSourceView(Enumerable.Range(0, 10));
/*var index = -1;
* try
* {
* index = testingItemsSourceView.IndexOf(0);
* }catch(Exception){ }
* Verify.AreEqual(-1, index);*/
var nullContainingEnumerable = new CustomEnumerable();
testingItemsSourceView = new ItemsSourceView(nullContainingEnumerable);
Verify.AreEqual(1, testingItemsSourceView.IndexOf(null));
});
}
static void Main(string[] args)
{
List <Entity> entities = new List <Entity>();
entities.Add(new Entity()
{
Id = 1
});
List <Company> companies = new List <Company>();
companies.Add(new Company()
{
Id = 2, Name = "Ford"
});
Get(entities);
Get(companies);
ICustomEnumerable <Entity> entities1 = new CustomEnumerable <Entity>();
entities.Add(new Entity()
{
Id = 1
});
ICustomEnumerable <Company> companies1 = new CustomEnumerable <Company>();
companies.Add(new Company()
{
Id = 2, Name = "Ford"
});
entities1 = companies1;
}
private CustomEnumerable(T value, CustomEnumerable <T> next)
{
this.value = value;
this.next = next;
count = this.next.count + 1;
}
public ContainerWithReadOnlyCustomEnumerable()
{
Items = new CustomEnumerable();
}