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using System;
using System.Linq;
using Xamarin.Forms.CustomAttributes;
using Xamarin.Forms.Internals;
#if UITEST
using Xamarin.UITest;
using NUnit.Framework;
#endif
// Apply the default category of "Issues" to all of the tests in this assembly
// We use this as a catch-all for tests which haven't been individually categorized
#if UITEST
[assembly: NUnit.Framework.Category("Issues")]
#endif
namespace Xamarin.Forms.Controls.Issues
{
[Preserve(AllMembers = true)]
[Issue(IssueTracker.Bugzilla, 42956, "ListView with DataTemplateSelector can have only 17 Templates, even with CachingStrategy=RetainElement", PlatformAffected.Android)]
public class Bugzilla42956 : TestContentPage
{
const string Success = "Success";
class MyDataTemplateSelector : DataTemplateSelector
{
readonly DataTemplate one;
readonly DataTemplate two;
readonly DataTemplate three;
readonly DataTemplate four;
readonly DataTemplate five;
readonly DataTemplate six;
readonly DataTemplate seven;
readonly DataTemplate eight;
readonly DataTemplate nine;
readonly DataTemplate ten;
readonly DataTemplate eleven;
readonly DataTemplate twelve;
readonly DataTemplate thirteen;
readonly DataTemplate fourteen;
readonly DataTemplate fifteen;
readonly DataTemplate sixteen;
readonly DataTemplate seventeen;
readonly DataTemplate eighteen;
readonly DataTemplate nineteen;
readonly DataTemplate twenty;
public MyDataTemplateSelector()
{
one = new DataTemplate(() => new ViewCell { View = new Label { Text = "I am the one!" } });
two = new DataTemplate(() => new ViewCell { View = new Label { Text = "I am the two!" } });
three = new DataTemplate(() => new ViewCell { View = new Label { Text = "I am the three!" } });
four = new DataTemplate(() => new ViewCell { View = new Label { Text = "I am the four!" } });
five = new DataTemplate(() => new ViewCell { View = new Label { Text = "I am the five!" } });
six = new DataTemplate(() => new ViewCell { View = new Label { Text = "I am the six!" } });
seven = new DataTemplate(() => new ViewCell { View = new Label { Text = "I am the seven!" } });
eight = new DataTemplate(() => new ViewCell { View = new Label { Text = "I am the eight!" } });
nine = new DataTemplate(() => new ViewCell { View = new Label { Text = "I am the nine!" } });
ten = new DataTemplate(() => new ViewCell { View = new Label { Text = "I am the ten!" } });
eleven = new DataTemplate(() => new ViewCell { View = new Label { Text = "I am the eleven!" } });
twelve = new DataTemplate(() => new ViewCell { View = new Label { Text = "I am the twelve!" } });
thirteen = new DataTemplate(() => new ViewCell { View = new Label { Text = "I am the thirteen!" } });
fourteen = new DataTemplate(() => new ViewCell { View = new Label { Text = "I am the fourteen!" } });
fifteen = new DataTemplate(() => new ViewCell { View = new Label { Text = "I am the fifteen!" } });
sixteen = new DataTemplate(() => new ViewCell { View = new Label { Text = "I am the sixteen!" } });
seventeen = new DataTemplate(() => new ViewCell { View = new Label { Text = "I am the seventeen!" } });
eighteen = new DataTemplate(() => new ViewCell { View = new Label { Text = "I am the eighteen!" } });
nineteen = new DataTemplate(() => new ViewCell { View = new Label { Text = "I am the nineteen! Is this how I should be databinding? Whatev." } });
twenty = new DataTemplate(() => new ViewCell { View = new Label { Text = Success } });
}
protected override DataTemplate OnSelectTemplate(object item, BindableObject container)
{
var val = (int)item;
switch (val)
{
case 1:
return one;
case 2:
return two;
case 3:
return three;
case 4:
return four;
case 5:
return five;
case 6:
return six;
case 7:
return seven; //not six
case 8:
return eight;
case 9:
return nine;
case 10:
return ten;
case 11:
return eleven;
case 12:
return twelve;
case 13:
return thirteen;
case 14:
return fourteen;
case 15:
return fifteen;
case 16:
return sixteen;
case 17:
return seventeen;
case 18:
return eighteen;
case 19:
default:
return nineteen;
case 75:
return twenty;
}
}
}
protected override void Init()
{
var dts = new MyDataTemplateSelector();
var listView = new ListView
{
ItemsSource = Enumerable.Range(0, 100),
ItemTemplate = dts
};
var layout = new StackLayout { Children = { listView } };
Content = layout;
listView.ScrollTo(75, ScrollToPosition.MakeVisible, true);
}
#if UITEST
[Test]
public void Bugzilla42956Test()
{
RunningApp.WaitForElement(q => q.Marked(Success));
}
#endif
}
}
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