<%--在aspx(html)引用的uc--%><%@ Register Src="~/路径就对了/ABC.ascx" TagPrefix="TagPrefixName" TagName="TagName" %><%--在aspx(html)使用的uc--%><TagPrefixName:TagName runat="server" ID="YourId" Tag_Text="自订的Tag"/>//ABC.ascx.vb//使用的function vbProtected Sub BT_S_C_1_Click(sender As Object, e As EventArgs) Handles BT_S_C_1.Click Dim sNumid As String = Page.Request("num_id") Dim sProcess As String = ViewState("YourTag") //do something ~~~~~End Sub//Tag_Text() 主要这个 vbPublic Property Tag_Text() As String Get Return ViewState("YourTag") End Get Set(ByVal value As String) ViewState("YourTag") = value End SetEnd Property//-----------------------补充---------------------//UserControl 呼叫 父网页的Function Dim p As Page = Me.Parent.Page Dim pageType As Type = p.GetType() Dim reUrl As MethodInfo = pageType.GetMethod("function名字") reUrl.Invoke(p, New Object() {"参数1","参数2","参数3"})