Question

i dont think my on change function is being called…why?

Public Sub selCurrentManuf_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles selCurrentManuf.SelectedIndexChanged
   Response.Write("<script language='javascript'>alert('"+"oi"+"');</script>")
End Sub   

<asp:DropDownList runat="server" ID="selCurrentManuf"  OnSelectedIndexChanged="selCurrentManuf_SelectedIndexChanged"></asp:DropDownList>

Am i doing something wrong?

Answer 1

Try adding AutoPostBack="true" to your control markup; assuming you want it to do the action immediately. Otheriwse the event won’t fire until the form is submitted in some other way.

<asp:DropDownList runat="server" ID="selCurrentManuf" autopostback="true" OnSelectedIndexChanged="selCurrentManuf_SelectedIndexChanged"></asp:DropDownList>