I have download Dreamweaver MX DreamweaverCtrls Replacement and install.

but I find the MM:update's event don't run,why?

please see below code.

<MM:Update
id="myU"
OnUpdated="myU_Updated"
OnPreUpdate="myU_OnPreUpdate"
ConnectionString=
........

</MM:Update>

<script runat="server">
Sub Page_Load(Src As Object, E As EventArgs)
If Not IsPostBack Then
DataBind()
End If
End Sub

Sub myU_Updated(sender As Object, e As DreamweaverCtrls.UpdatedEventArgs)
response.write("¼º¾­¸üÐÂÍê±Ï")
trace.warn("abc","¼º¾­¸üÐÂÍê±Ï")
Page.RegisterStartupScript("warnings","<script language='JavaScript'>alert('±£´æ³É¹¦£¡' );" & chr(60) & "/script>")
End Sub

sub myU_OnPreUpdate(sender As Object, e As DreamweaverCtrls.PreUpdateEventArgs)
response.write("ÕýÔÚ×¼±¸¸üÐÂ!")
end sub

sub butSave_onclick(Sender As Object,e As EventArgs)
page.validate()
if page.isvalid=true then
myU.expression=true
myU.doinit()
end if
end sub
</script>

But myU_OnPreUpdate and myU_Updated not run, why?
please expert help me,thank