How to find the item order number in List Box in App designer?

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I have a List box named "Numbers" that has the same 4 items, they all are the number 5. How can I pick the Item3 (The third in order) to change it to 3.
I used [~,idx] = ismember(app.NumbersListBox.Value,app.NumbersListBox.Items);
But I alwyas get to change the first on because the Value are the same.
How can I find inx using "Item number" instead of "Value" ?
Thank you so much
  14 Commenti
Faez Alkadi
Faez Alkadi il 22 Set 2019
app.NumbersListBox.ItemsData=1:1:length(app.NumbersListBox.Items);
So whenever I add an Item, The ItemData length changs automatically.
and then whenever I pick an Item to change, I can find its index as
[~,idx] =ismember(app.NumbersListBox.Value,app.NumbersListBox.ItemsData);
Seonggon Kim
Seonggon Kim il 18 Feb 2023
If there are items with same name, is there a way out?
I recommand to use the 'Table' instead 'List Box'.
app.table.Selection

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