在使用EnableviewState ="true"时感到困惑. [英] Confused in use of EnableviewState="true"

问题描述

伙计们

我有2页. Page_1和Page_2.

在Page_1中，我EneableViewstate="true"位于页面顶部.
Page_1的链接也重定向到Page_2.

下面是Page_1的Page_Load()代码.

Hi Guys

I have 2 pages. Page_1 and Page_2.

In Page_1 I EneableViewstate="true" on top of the page.
Also Page_1 has a link that redirects to Page_2.

the code for Page_Load() of Page_1 is below.

if (!Page.IsPostBack)
            {
               loadgrdAvailableStaffOnPageLoad();
               loadgrvViewAppointmentsOnPageLoad();
            }
            else if (Page.IsPostBack)
            {
                loadgrdAvailableStaffOnPageLoadViewState();
                loadgrvViewAppointmentsOnPageLoadViewState();
            }

在Page_2中，我在下面的代码中有取消"按钮

In Page_2 I have button "cancel" with this code below

Response.Redirect("Page_1.aspx");// So it goes to Page_1

如果因为混淆而错了，现在纠正我.

在最初的Page_Load()上，期望应用程序位于下面的"if"语句中:

Now correct me if am wrong because am confuse.

On initial Page_Load() am expecting the application to go inside this "if" statement below:

if (!Page.IsPostBack)
            {
               loadgrdAvailableStaffOnPageLoad();
               loadgrvViewAppointmentsOnPageLoad();
            }

然后从Page_2返回后，应用程序应该正在加载

这部分:

Then after coming back from Page_2, the application should be loading

this part:

else if (Page.IsPostBack)
            {
                loadgrdAvailableStaffOnPageLoadViewState();
                loadgrvViewAppointmentsOnPageLoadViewState();
            }

从Page_2返回后，我该怎么做才能恢复Page_1信息?

What can I do to restore Page_1 information after coming back from Page_2??

推荐答案

ViewState仅在您停留在同一页面上时可用.如果要在页面之间导航，则需要查看其他保留信息的方法:

1.会话状态: http://msdn.microsoft.com/en-us/library/ms178581.aspx [ ^ ]

2. QueryString:使用QueryString在页面之间传递变量 [

ViewState is only available if you stay on the same page. If you''re navigating between pages, you''ll need to look at other methods of persisting the information:

1. Session State: http://msdn.microsoft.com/en-us/library/ms178581.aspx[^]

2. QueryString: Passing variables between pages using QueryString[^]

If the information is in any way more complex than just a couple of primitive values (integer, string etc) I''d use Session State. It''ll let you persist complex objects across requests for different pages.

这篇关于在使用EnableviewState ="true"时感到困惑.的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！