能见度/标签的隐形在

-1

的.cs页

if { 
    this.showhide.ImageUrl = "../common/images/hide-icon.png"; 
    this.showhide.AlternateText = "Hide SearchBar"; 
    this.searchBar.Visible = false; 
    Session["showHideImage"] = "hide"; 
    ScreenProjectSearch ProjSearch = CurrentProjectSearch; 
    lblTypeOfSearch.Text = "Search results are based on"; 
    string typeOfSearch = string.Empty; 

    if (CurrentProjectSearch != null) 
    { 
    //lblTypeOfSearch.Text = "Search results are based on"; 

    if (CurrentProjectSearch.IsFileName) 
     typeOfSearch += " Filename " + ProjSearch.TextSearch.Trim(); 
    if (CurrentProjectSearch.IsDescription) 
     typeOfSearch += " Description " + ProjSearch.TextSearch.Trim(); 
    if (CurrentProjectSearch.IsPartNumber) 
     typeOfSearch += " PartNumber " + ProjSearch.TextSearch.Trim(); 
    if (CurrentProjectSearch.IsState) 
    { 
     if (CurrentProjectSearch.IsDevelopment) 
     typeOfSearch += " Development State "; 
     if (CurrentProjectSearch.IsValidation) 
     typeOfSearch += " Validation State "; 
     if (CurrentProjectSearch.IsValidationPendingApproval) 
     typeOfSearch += " ValidationPendingApproval State "; 
     if (CurrentProjectSearch.IsPilot) 
     typeOfSearch += " Pilot State "; 
     if (CurrentProjectSearch.IsFactory) 
     typeOfSearch += " Factory State "; 
     if (CurrentProjectSearch.IsCancel) 
     typeOfSearch += " Cancel State "; 
    } 
    if (CurrentProjectSearch.IsDate) 
     typeOfSearch += " Created Date From: " + ProjSearch.FromDate + " To: " + ProjSearch.ToDate; 
    if (CurrentProjectSearch.IsPromoteDate) 
     typeOfSearch += " Promoted Date From: " + ProjSearch.FromPromoteDate + " To: " + ProjSearch.ToPromoteDate; 
    if (CurrentProjectSearch.IsCreatedBy) 
     typeOfSearch += " Created By: " + ProjSearch.CreatedBy.ToString(); 
    if (CurrentProjectSearch.IsProjectIDs) 
     typeOfSearch += " PrjoectIds: " + ProjSearch.ProjectIDs; 
    if (CurrentProjectSearch.IsWorkFlow) 
    { 
     if (CurrentProjectSearch.IsMdiagsNormal) 
     typeOfSearch += " WorkFlow: " + "Mdiags Normal"; 
     if (CurrentProjectSearch.IsMdiagsTestEngineer) 
     typeOfSearch += " WorkFlow: " + "Mdiags TestEngineer"; 
    } 
    if (!string.IsNullOrEmpty(typeOfSearch)) 
    { 
     lblTypeOfSearch.Text += typeOfSearch; 
     lblTypeOfSearch.Visible = true; 
    } 
    } 
}

我想如果一些文本追加到它时，typeOfSearch不为空，在Page_Load显示此lblTypeOfSearch。如果我检查Page_Load中的值，它在那里显示为空。我怎样才能利用这个变量来显示？

来源

2014-09-06 user3356020

只是调试巨兽，看看实际发生了什么... – walther 2014-09-06 08:29:24

此代码是在按钮单击。标签在按钮点击事件中添加文本。如果我想再次使用相同的文本，我如何在页面加载方法中使用它？ – user3356020 2014-09-06 08:42:38

每当用户点击某件东西并且不在客户端处理时，就会有一个请求发送到服务器，并且它返回一个新页面，其新实例化代码隐藏。所以，如果你想在回发期间持续数据，返回页面等，你需要先将它存储在某个地方（session，db，无论...），然后你可以在Page_Load中访问它。

请记住，网站是无国籍的。

来源

2014-09-06 08:52:43 walther

正如我所见，您的代码必须正常工作，您是否可以看到缓存的结果，在这种情况下，您可以按Ctrl + F5键查看您的新代码结果。如果你想在按钮点击和表单加载时访问你的文本，你可以声明你的字符串变量是全局的（超出这些方法）。

来源

2014-09-06 08:44:17 Nabi

全局变量？ YUCK！他们足够邪恶，但要在网络编程中推广他们？肯定是一个不 - 不，先生！ – walther 2014-09-06 08:49:58

谢谢，但在网页编程中，我们可以在JavaScript中使用全局变量的相同功能。或者如果我们不得不做这个服务器端，我们可以做一个额外的隐藏输入。 – Nabi 2014-09-06 09:30:54

加载新页面时，JavaScript如何保持数据？（这是当Page_Load被调用时） – walther 2014-09-06 10:05:58

能见度/标签的隐形在

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