ListWidget with data index out of binds when modified binded data #5227
Description
Checklist
- I have searched the issue tracker for open issues that relate to the same problem, before opening a new one.
- This issue only relates to a single bug. I will open new issues for any other problems.
Describe the bug
When i modify the binded data like shrinking or growing the backing slice and call reload on the data afterwards, I get this internal error message from fyne:
2024/10/27 18:57:28 Fyne error: Error getting current data value
2024/10/27 18:57:28 Cause: index out of bounds
2024/10/27 18:57:28 At: /home/darkc0der/go/pkg/mod/fyne.io/fyne/[email protected]/widget/label.go:165
The app doesnt crash or work abnormally afterwards, it runs just fine like before. But the error message reappears everytime I shrink the slice further due to item deletion and reload the bind...hinting that something was accessed out of binds--old indices still being kept around, maybe?
How to reproduce
Already explained in the bug description...
Screenshots
No response
Example code
dataBind = binding.BindStringList( & titles)
notes := widget.NewListWithData(
dataBind,
func() fyne.CanvasObject {
return widget.NewLabel("")
},
func(di binding.DataItem, co fyne.CanvasObject) {
co.( * widget.Label).Bind(di.(binding.String))
},
)
trash := newTrashButton(trashIcoRes)
trash.onTapped = func() {
if len(tempTitles) != 0 {
notes.Unselect(currentItemID)
textPane.Hide()
tempTitles = slices.Delete(tempTitles, currentItemID, currentItemID + 1)
tempEditorTexts = slices.Delete(tempEditorTexts, currentItemID, currentItemID + 1)
search(titleEntry.Text)
} else {
notes.Unselect(currentItemID)
textPane.Hide()
titles = slices.Delete(titles, currentItemID, currentItemID + 1)
editorTexts = slices.Delete(editorTexts, currentItemID, currentItemID + 1)
dataBind.Reload()
}
}
Fyne version
2.5.2
Go compiler version
1.21.6
Operating system and version
linux/amd64
Additional Information
No response