Visual Studio 上的奇怪错误 - “您可以使用导航栏切换上下文" [英] Weird Error on Visual Studio - "you could use the navigation bar to switch context"

问题描述

我一直在尝试链接一个 Web 表单，以便能够访问母版页中的变量.我在它起作用之前这样做了.但是现在当我这样做时，我得到了一个错误.

Site.Master 中的代码

<%@ Master Language="C#" AutoEventWireup="true" CodeFile="Site.master.cs" Inherits="Site" %>

Site.Master.cs 中的代码

公共部分类站点:System.Web.UI.MasterPage{公共字符串 hi = "";protected void Page_Load(object sender, EventArgs e){}}

WebForm1.aspx 中的代码:

<%@ Page Language="C#" MasterPageFile="~/Site.master" AutoEventWireup="true" CodeFile="WebForm1.aspx.cs" Inherits="WebForm1" %><%@ MasterType VirtualPath="~/Site.master" %>

WebForm1.aspx.cs 中的代码

公共部分类 WebForm1 : System.Web.UI.Page{protected void Page_Load(object sender, EventArgs e){Master.hi="新"}}

当我将鼠标悬停在 hi 上时，我收到此消息

Visual Studio 中的错误 - 您可以使用导航栏切换上下文>

这是另一张图片截图

如果你们能帮我，那就太好了

解决方案

我在 MVC 应用程序中遇到了同样的问题，因此 WebForm-CodeFile-CodeBehind 建议并未真正适用.

但是，我意识到我创建的新类的构建操作"设置为内容".一旦我将其更改为编译"，一切又开始工作.

I have been trying to link a a web form to be a able to access a variable in the master page. I did this before it worked. But now when I do it I get an error.

The code in Site.Master

<%@ Master Language="C#" AutoEventWireup="true" CodeFile="Site.master.cs" Inherits="Site" %>

The code in Site.Master.cs

public partial class Site : System.Web.UI.MasterPage
{
    public string hi = "";

    protected void Page_Load(object sender, EventArgs e)
    {

    }
}

The code in WebForm1.aspx:

<%@ Page Language="C#" MasterPageFile="~/Site.master" AutoEventWireup="true" CodeFile="WebForm1.aspx.cs" Inherits="WebForm1" %>
<%@ MasterType VirtualPath="~/Site.master" %>

The Code in WebForm1.aspx.cs

public partial class WebForm1 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
     {
         Master.hi="new"
     }
}

When I hover over the hi, I get this message

Error in Visual Studio - "You can use navigation bar to switch contexts

Here is another image Screenshot

If you guys could help me it will really be great

解决方案

I had this same problem in an MVC application so the WebForm-CodeFile-CodeBehind suggestion didn't really apply.

However, I realized the new classes that I created had their "Build Action" set to "Content". Once I changed this to "Compile", everything started working again.

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