I have 2 drop down list, the first one come from the table "categorie" and till here no problem, the proble is that i would like to generate the second drop down list , which come from the table "subcategorie" beacause of what we have choose in the first one!!
Protected Sub Page_Init(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Init
SystemDropDown.SelectedValue = Request.QueryString("SystemName")
LocationDropDown.SelectedValue = Request.QueryString("LocationName")