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Issue2248.cs
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Issue2248.cs
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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.Issues
{
[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);
}
}
}
}
}