Removing items from a bound list spawns out-of-bound error #6118
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 trying to remove an item from a bound list the operation succeeds, but also produces a Fyne error: index out of bounds. This happens for every member item of the list.
2026/02/18 16:56:27 Fyne error: Error getting current data value
2026/02/18 16:56:27 Cause: index out of bounds
2026/02/18 16:56:27 At: /home/erik/go/pkg/mod/fyne.io/fyne/v2@v2.7.2/widget/label.go:184
How to reproduce
I used a variation of the example from the Fyne docs under "Data Binding/List". But instead of adding items, I am deleting the selected item.
See code for details.
Screenshots
No response
Example code
package main
import (
"fyne.io/fyne/v2"
"fyne.io/fyne/v2/app"
"fyne.io/fyne/v2/container"
"fyne.io/fyne/v2/data/binding"
"fyne.io/fyne/v2/widget"
)
func main() {
a := app.New()
w := a.NewWindow("List Data")
data := binding.BindStringList(
&[]string{"Item 1", "Item 2", "Item 3"},
)
var selectedID int
list := widget.NewListWithData(
data,
func() fyne.CanvasObject {
return widget.NewLabel("template")
},
func(di binding.DataItem, co fyne.CanvasObject) {
co.(*widget.Label).Bind(di.(binding.String))
},
)
list.OnSelected = func(id widget.ListItemID) {
selectedID = id
}
remove := widget.NewButton("Remove", func() {
v, err := data.GetValue(selectedID)
if err != nil {
panic(err)
}
err = data.Remove(v)
if err != nil {
panic(err)
}
})
w.SetContent(container.NewBorder(nil, remove, nil, nil, list))
w.Resize(fyne.NewSize(300, 500))
w.ShowAndRun()
}Fyne version
2.7.2
Go compiler version
1.25.5
Operating system and version
Ubuntu 22.04 LTS
Additional Information
No response