Public Class Form1 Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load For hoge As Hoge = hoge.A To hoge.C Me.ComboBox1.Items.Add(hoge) Next End Sub Private Sub ComboBox1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ComboBox1.SelectedIndexChanged Dim X As Integer = Me.ComboBox1.SelectedItem * 10 Me.Label1.Text = "X = " + X.ToString() End Sub End Class Enum Hoge A = 1 B C End Enum