List1.Clear If a = 1 Then '满足某个条件,比如a=1 List1.AddItem "项目A111" List1.AddItem "项目A222" List1.AddItem "项目A333" Else '不满足条件 List1.AddItem "项目B111" List1.AddItem "项目B222" List1.AddItem "项目B333" End If追问
如果列表是在数据库中的要怎么弄呢? 原程序是这样的 Private Sub ListBox_allrights_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ListBox_allrights.SelectedIndexChanged