在组合框中显示解密的值

Question

我试图显示我的SC_User表的解密Us_User值，我不知道如何将数据表转换为字符串以使用DecryptDES函数。组合功能：

Public Sub ToCombo(ByVal Combo As ComboBox)
    Dim encript As New SC_Encript
    Dim ds As New DataSet
    Dim query As String = ""
    query = "Select Us_User From SC_User Order By (Us_User)ASC"
    ds = DataAccess.DSQuery(query, "SC_User")
    Combo.DisplayMember = "Us_User"
    Combo.ValueMember = "Us_User"
    'Combo.DataSource = encript.decryptDES(ds.Tables("SC_User") Obviously this line doesn't work , but shows the idea

End Sub

任何帮助？