System.ArgumentOutOfRangeException: ArgumentOutOfRange_IndexMustBeLess Arg_ParamName_Name, index

[minhiclick]

Description

This bug occurs for Collection View control. The bug occurs randomly, it is difficult to make the bug appear because the rate is low. This bug has existed for a long time.

Below is the log track:

System.Collections.Generic.List1[[System.Object, System.Private.CoreLib, Version=9.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].get_Item(Int32 ) System.Collections.Generic.List1[[System.Object, System.Private.CoreLib, Version=9.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].System.Collections.IList.get_Item(Int32 )
Microsoft.Maui.Controls.Handlers.Items.ObservableItemsSource.ElementAt(Int32 index)
Microsoft.Maui.Controls.Handlers.Items.ObservableItemsSource.GetItem(Int32 position)
Microsoft.Maui.Controls.Handlers.Items.UngroupedItemsSource.GetItem(Int32 position)
Microsoft.Maui.Controls.Handlers.Items.SelectableItemsViewAdapter2[[Microsoft.Maui.Controls.ReorderableItemsView, Microsoft.Maui.Controls, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[Microsoft.Maui.Controls.Handlers.Items.IGroupableItemsViewSource, Microsoft.Maui.Controls, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].UpdateMauiSelection(Int32 adapterPosition) Microsoft.Maui.Controls.Handlers.Items.SelectableItemsViewAdapter2[[Microsoft.Maui.Controls.ReorderableItemsView, Microsoft.Maui.Controls, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[Microsoft.Maui.Controls.Handlers.Items.IGroupableItemsViewSource, Microsoft.Maui.Controls, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].SelectableClicked(Object sender, Int32 adapterPosition)
Microsoft.Maui.Controls.Handlers.Items.SelectableViewHolder.OnViewHolderClicked(Int32 adapterPosition)
Microsoft.Maui.Controls.Handlers.Items.SelectableViewHolder.OnClick(View view)
Android.Views.View.IOnClickListenerInvoker.n_OnClick_Landroid_view_View_(IntPtr jnienv, IntPtr native__this, IntPtr native_v)
Android.Runtime.JNINativeWrapper.Wrap_JniMarshal_PPL_V(_JniMarshal_PPL_V callback, IntPtr jnienv, IntPtr klazz, IntPtr p0)

Steps to Reproduce

No response

Link to public reproduction project repository

No response

Version with bug

9.0.12 SR1.2

Is this a regression from previous behavior?

Yes, this used to work in .NET MAUI

Last version that worked well

Unknown/Other

Affected platforms

Android

Affected platform versions

No response

Did you find any workaround?

This pull seems to have fixed it but is not updated in .NET 9.0:
#22676

Relevant log output

[similar-issues-ai]

We've found some similar issues:

• CollectionView SelectableItemsViewAdapter System.ArgumentOutOfRangeException: ArgumentOutOfRange_IndexMustBeLess Arg_ParamName_Name, index #20764 , similarity score: 86%

If any of the above are duplicates, please consider closing this issue out and adding additional context in the original issue.

Note: You can give me feedback by 👍 or 👎 this comment.

[wooolly]

I've just started using Collection View for the re-ordering capability, and when I try to move the bottom item in the list upwards, it will throw an out of range exception. This is a consistent issue for me and happens every time, only on Android. Also, once I've saved the order of the items, and reload the order, they are out of order but again only on Android.

[minhiclick]

@wooolly This is a very serious bug of Collection View but it has not been fixed for a long time.
As in this post, the fix is ​​quite simple.
#22676.

Programmers all feel that Collection View is a terrible control because it is slow and has many errors.

[jfversluis]

Are you able to maybe test the fix from this PR on your project and let us know if that indeeds resolves your issue? If you need any instructions on how to test, please use this video.

[jfversluis]

Fixed by #22676