1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Xamarin.Forms.CustomAttributes;
using Xamarin.Forms.Internals;
namespace Xamarin.Forms.Controls.TestCasesPages
{
[Preserve (AllMembers=true)]
[Issue (IssueTracker.Github, 2248, "ListView.ScrollTo crashes app", PlatformAffected.WinPhone)]
public class Issue2248 : ContentPage
{
ObservableCollection<Item> _items;
public Issue2248()
{
_items = new ObservableCollection<Item>()
{
new Item() {Id = 1, Name = "First"},
new Item() {Id = 2, Name = "Second"},
new Item() {Id = 3, Name = "Third"},
new Item() {Id = 4, Name = "Fourth"},
new Item() {Id = 5, Name = "Fifth"}
};
var listView = new ListView()
{
ItemsSource = _items,
ItemTemplate = new DataTemplate(typeof (ItemCell))
};
Content = listView;
}
public void RemoveItemFromCollection(Item item)
{
_items.Remove(item);
}
public class Item
{
public int Id { get; set; }
public string Name { get; set; }
}
public class ItemCell : ViewCell
{
public ItemCell()
{
var nameLabel = new Label();
nameLabel.SetBinding(Label.TextProperty, "Name");
nameLabel.GestureRecognizers.Add(new TapGestureRecognizer()
{
Command = new Command(DeleteItem),
NumberOfTapsRequired = 1
});
View = nameLabel;
}
void DeleteItem()
{
var parent = Parent.Parent as Issue2248;
if (parent != null)
{
parent.RemoveItemFromCollection((Item) BindingContext);
}
}
}
}
}
|
