WPF losts the binding after some operation

[vsfeedback]

This issue has been moved from a ticket on Developer Community.

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[severity:It's more difficult to complete my work]
Good morning,

I have encountered a problem and I can't seem to resolve it. I have tried everything but cannot bypass the issue. I have attached a video to show what happens.

To reproduce the error:

Open the XML file (you will find it in the attachments).
Select either line 1 or line 2 as many times as you want, and everything works.
Change the key, the first field in the top left corner.
Select the lines again, and you will notice that the selection no longer has any effect, and that an exception occurs after returning to a previously selected line.
If you click the "test" button in the toolbar, the error does not occur. This error is generated by the listview.

Thank you.
Attached there is also the solution and the
LocalizzatoreRisorse.zip
Stringhe it-IT - Copia.xaml
15-50-19.mp4

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Original Comments

Feedback Bot on 6/25/2024, 07:48 AM:

(private comment, text removed)

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Original Solutions

(no solutions)

[miloush]

That's because you change the hash code of the items in the collection (StringaProgetto). You cannot do that, the list view then cannot find the item to be removed from selection when you change selection. Remove the GetHashCode override and it starts working (also note that you should not base equality on the equality of hash codes, they can be equal when the strings are not).

Refer to the notes on GetHashCode(): https://learn.microsoft.com/en-us/dotnet/api/system.object.gethashcode