如何在ASP.net VB中动态创建多个DropDownList

Protected Sub btnCreateDDL_Click(sender As Object, e As EventArgs) Handles btnCreateDDL.Click
    Dim numDropDownLists As Integer = 5 '需要创建的DropDownList数量

    For i As Integer = 1 To numDropDownLists
        Dim ddl As New DropDownList()
        ddl.ID = "ddl" & i.ToString() '设置DropDownList的ID
        ddl.Items.Add("Option 1")
        ddl.Items.Add("Option 2")
        ddl.Items.Add("Option 3")
        '添加更多选项...

        '设置DropDownList的属性和事件
        '例如：ddl.AutoPostBack = True

        '将DropDownList添加到Panel控件中
        pnlDropDownLists.Controls.Add(ddl)
    Next
End Sub