响应.重定向，保持tabcontainer在活动标签

Question

我的VB.net tabcontainer需要保持在活动选项卡上，当我有每个提交通过response.redirect.

我怎样才能做到这一点?我需要你的回应。重定向到那里，因为它会显示主TAB容器中添加的内容。

<asp:TabContainer runat="server" ActiveTabIndex="0" Height="200px" 
Width="175px" ScrollBars="Auto" EnableTheming="True" Font-
Underline="False" ID="TabContainer2" EnableViewState="False" 
Style="float:right; padding-left: 110px; margin-bottom: 340px;" 
OnActiveTabChanged="TabContainer1_ActiveTabChanged">

Protected Sub TabContainer1_ActiveTabChanged(ByVal sender As Object, 
ByVal e As EventArgs)
    ViewState("ActiveTabIdx") = TabContainer1.ActiveTabIndex
End Sub

Protected Sub SubmitCompanies_Click(ByVal sender As Object, ByVal e 
As System.EventArgs) Handles SubmitCompanies.Click
*****there is more code here but for this question, it's not necessary so it has been 
omitted*****
    Response.Redirect(Request.RawUrl)
    ViewState("ActiveTabIdx") = TabContainer1.ActiveTabIndex

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) 
Handles Me.Load
ProductID.Value = Request.QueryString("id")
Page.Response.Cache.SetCacheability(HttpCacheability.NoCache)
If Not ViewState("ActiveTabIdx") Is Nothing Then
    TabContainer1.ActiveTabIndex = Convert.ToInt32(Session("ActiveTabIdx"))
End If
End Sub

Answer 1

ViewState不能与Response.Redirect一起工作。对于当前的实现，我会使用QueryString或Session来存储对活动选项卡的引用。

Response.Redirect(String.Format("{0}?tab={1}", Request.RawUrl, TabContainer1.ActiveTabIndex)) 

Answer 2

我认为你的解决方案是使用jquery将选定的选项卡保存在cookie上或当用户点击该选项卡时的任何地方并且使用jquery从cookie中获取旧的选定选项卡并使用jquery设置选定选项卡

Answer 3

我可以看到你正在分配viewstate值

ViewState("ActiveTabIdx") = TabContainer1.ActiveTabIndex

后

Response.Redirect(Request.RawUrl)

此代码不可用。

首先要注意的是ViewState不与新请求一起携带(通过调用Redirect方法启动新请求)。解决方法是使用查询字符串。在RawUrl的末尾添加active选项卡作为参数，然后在页面加载时读取它。

希望有帮助，

克丽丝

Answer 4

将活动标签索引保存在会话变量中，并在Page_Load事件中检查Session("ActiveTabIdx")是否为Nothing或空，然后将TabContainer1.ActiveTabIndex设置为Session("ActiveTabIdx")的值。像这样:

    Protected Sub SubmitCompanies_Click(ByVal sender As Object, ByVal e 
As System.EventArgs) Handles SubmitCompanies.Click
       'Rest of code
        Session("ActiveTabIdx") = TabContainer1.ActiveTabIndex
        Response.Redirect(Request.RawUrl)
    End Sub
    Protected Sub Page_Load(ByVal Sender As Object, ByVal e as System.EventArgs) Handles Page.Load
         If not ViewState("ActiveTabIdx") is Nothing Then
                TabContainer1.ActiveTabIndex = Convert.ToInt32(Session("ActiveTabIdx"))
         End If
    End Sub

在你的SubmitCompanies_Click之间，你在设置ViewStat变量的值之前重定向用户!