jajajaja simon simon si me salio.. pero como no ocupo code escondido..
puese esto
Private Sub DAtaList2_ItemDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.DataListItemEventArgs)
Dim txt As TextBox = CType(e.Item.FindControl("fechas_edit"), TextBox)
Dim href As HtmlAnchor = CType(e.Item.FindControl("hrefClear"), HtmlAnchor)
href.Attributes.Add("onclick", "clearField('" & txt.UniqueID & "')")
End sub
y en mi datalist
<datalist OnItemDataBound="DAtaList2_ItemDataBound">
qedo bien
thanks rooot