WebListBox.RemoveRowAt() giving KeyNotFoundException

Targets Web
1

I have a Method to filter a ListBox by removing Rows that don’t contain certain text. It works fine for Desktop. It also works fine for Web in a Test app. But the same Method is giving a KeyNotFoundException in my Web App when it goes to .RemoveRowAt(XXX) where XXX is an existing Row (ie not out of bounds).

Screen Shot 2020-11-13 at 13.23.10
Screen Shot 2020-11-13 at 13.23.103274×2044 616 KB

In my case it is wanting to remove Row #2 and there are 8 Rows in the WebListBox.

I created a test WebApp and the same Method has no KeyNotFoundException. Any clues on why this might be happening?

2

It turns out that RowCount is not being updated properly for a WebListBox when you add, remove, re-add Rows, then try to remove them again.

<https://xojo.com/issue/62633>

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