problem output from list box data when multiple selection

Question

I add the melon box to the sheet via the data source. In case of multiple selection, it is necessary to add it to the collection. When outputting, we get the same value a couple of times

List<string> comission = new List<string>(); for (int i = 0; i < listBox2.Items.Count; i++) { if (listBox2.GetSelected(i) == true ) { comission.Add(listBox2.SelectedValue.ToString()); ; } } foreach (string ar in comission) { label3.Text += ar + "\n"; }

Zufir zufir 4,588 one eleven 29 · Accepted Answer · 2017-01-24T16:55:54

Because you always add the same value that lies in the SelectedValue , which depends on the SelectedItem , which always contains the first selected item or null if nothing is selected. Use the SelectedItems property:

 List<string> comission = new List<string>(); foreach (var item in listBox2.SelectedItems) { comission.Add(item.ToString()); } foreach (string ar in comission) { label3.Text += ar + "\n"; }

Of course, you can do one foreach .

If you need to do exactly through for - use the Items property. Then the add line changes to:

 comission.Add(listBox2.Items[i].ToString());

comission.Add((listBox2.Items[i] as DbDataRecord).Items["fio"]);

problem output from list box data when multiple selection

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