能否在更新面板中从异步回发切换到完全回发?

在不讨论原因的情况下,我最终将计数器存储在会话变量中,并从for循环中退出sub,除非计数器等于数量。

然后在for循环结束后,我需要更新的所有内容(标签、下拉框)都放在自己的更新面板中,UpdateMode设置为always。

Dim iCounter as Integer = Session("counter")
Dim iQuantity as Integer = 10

Protected Sub btnFoo_Click Handles btnFoo Yadda

    For i as Integer = iCounter to iQuantity - 1
        //do something with AsyncPostBackTrigger until iCounter = iQuantity - 1
        //then trigger a full postback

        If iCounter <> iQuantity Then
            Exit Sub
        End If
        Session("counter") = iCounter + 1
    Next

    //Everything else I needed to do with page controls wrapped 
    //in their own update panels

End Sub

也许不是“最佳实践”,但它满足了我的需要。