Avendo questo codice:
codice:Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Dim cn As New MySqlConnection("database=miodb") cn.Open() Dim cmd As New MySqlCommand("select * from clienti", cn) Dim dr As MySqlDataReader = cmd.ExecuteReader(CommandBehavior.CloseConnection) Do While dr.Read ListBox1.Items.Add(dr("cognome")) ListBox1.ValueMember = dr("idclienti") Loop End Sub Private Sub ListBox1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ListBox1.SelectedIndexChanged MsgBox(ListBox1.SelectedValue) End Sub
xkè quando clicco su un qualsiasi elemento della listbox non mi visualizza il relativo valore?
Grazie

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