1

我遇到了很大的问题，出于一些模糊的原因，我使用 NotePad++ 在 Vb.Net Asp.net 中进行编码，在我的服务器上，我有一个文件夹，我想添加一些 .vb 类，然后在 aspx 文件中，简单导入命名空间并创建这些类的实例......应该很容易，不是吗？

好吧，这是我的架构：

我有一个文件名 default.aspx，其中包含：

<%@ Import Namespace="Geo" %>
<%
    Dim a As Access = New Access()
    Response.Write(a.hasAccess())
%>

和名为 aspxcomponents 的子文件夹中的类名 Access

这是课堂访问内容：

Namespace Geo

    Public Class Access
        Function hasAccess() As Boolean
            Return True
        End Function
    End Class

End Namespace

好吧，当我执行 default.aspx 时，我收到以下错误：

Compilation Error
Description: An error occurred during the compilation of a resource required to service this request. Please review the following specific error details and modify your source code appropriately.

Compiler Error Message: BC30002: Type 'Access' is not defined.

Source Error:


Line 1:  <%@ Import Namespace="Geo" %>
Line 2:  <%
Line 3:  Dim a As Access = New Access()
Line 4:  Response.Write(a.hasAccess())
Line 5:  %>


Source File: C:\...\default.aspx    Line: 3


Show Detailed Compiler Output:


C:\Windows\SysWOW64\inetsrv> "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" /t:library /utf8output /R:"C:\Windows\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\84e1764c\a7c5af94\assembly\dl3\17edf889\308e2904_d4a7cd01\obout_SuperForm.DLL" /R:"C:\Windows\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\84e1764c\a7c5af94\assembly\dl3\90a90acc\06f1d546_d4a7cd01\obout_ListBox.DLL" /R:"C:\Windows\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\84e1764c\a7c5af94\assembly\dl3\16815892\0259b030_d4a7cd01\AjaxControlToolkit.DLL" /R:"C:\Windows\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\84e1764c\a7c5af94\assembly\dl3\db59a808\e25edd3b_d4a7cd01\obout_Flyout2_NET.DLL" /R:"C:\Windows\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\84e1764c\a7c5af94\assembly\dl3\1b343ee7\26831f32_d4a7cd01\obout_AJAXPage.DLL" /R:"C:\Windows\assembly\GAC_MSIL\System.WorkflowServices\3.5.0.0__31bf3856ad364e35\System.WorkflowServices.dll" /R:"C:\Windows\assembly\GAC_MSIL\System.IdentityModel\3.0.0.0__b77a5c561934e089\System.IdentityModel.dll" /R:"C:\Windows\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\84e1764c\a7c5af94\assembly\dl3\04af17f9\ca3b7804_d4a7cd01\obout_Tree_DB_Net.DLL" /R:"C:\Windows\assembly\GAC_MSIL\System.Configuration\2.0.0.0__b03f5f7f11d50a3a\System.Configuration.dll" /R:"C:\Windows\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\84e1764c\a7c5af94\assembly\dl3\2f6922c7\ba568500_d4a7cd01\obout_Show_Net.DLL" /R:"C:\Windows\assembly\GAC_MSIL\System\2.0.0.0__b77a5c561934e089\System.dll" /R:"C:\Windows\assembly\GAC_MSIL\System.Drawing\2.0.0.0__b03f5f7f11d50a3a\System.Drawing.dll" /R:"C:\Windows\assembly\GAC_32\System.EnterpriseServices\2.0.0.0__b03f5f7f11d50a3a\System.EnterpriseServices.dll" /R:"C:\Windows\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\84e1764c\a7c5af94\assembly\dl3\67fcad05\b8cabd41_d4a7cd01\obout_ImageZoom_NET.DLL" /R:"C:\Windows\assembly\GAC_32\System.Data\2.0.0.0__b77a5c561934e089\System.Data.dll" /R:"C:\Windows\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\84e1764c\a7c5af94\assembly\dl3\e0bf0dd3\2ae92003_d4a7cd01\obout_Splitter2_Net.DLL" /R:"C:\Windows\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\84e1764c\a7c5af94\assembly\dl3\923ae5b1\e6b6b705_d4a7cd01\obout_Window_NET.DLL" /R:"C:\Windows\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\84e1764c\a7c5af94\assembly\dl3\284fee82\00968846_25e3c701\obout_ASPTreeView_2_NET.DLL" /R:"C:\Windows\assembly\GAC_MSIL\System.Web.Mobile\2.0.0.0__b03f5f7f11d50a3a\System.Web.Mobile.dll" /R:"C:\Windows\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\84e1764c\a7c5af94\assembly\dl3\d8821591\e82de323_ab03ce01\Server.DLL" /R:"C:\Windows\assembly\GAC_MSIL\System.ServiceModel.Web\3.5.0.0__31bf3856ad364e35\System.ServiceModel.Web.dll" /R:"C:\Windows\assembly\GAC_MSIL\System.Xml\2.0.0.0__b77a5c561934e089\System.Xml.dll" /R:"C:\Windows\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\84e1764c\a7c5af94\assembly\dl3\3047a6af\a0af073a_d4a7cd01\obout_ComboBox.DLL" /R:"C:\Windows\assembly\GAC_MSIL\System.Web.Services\2.0.0.0__b03f5f7f11d50a3a\System.Web.Services.dll" /R:"C:\Windows\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\84e1764c\a7c5af94\assembly\dl3\766a113f\729f1038_d4a7cd01\obout_Calendar2_Net.DLL" /R:"C:\Windows\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\84e1764c\a7c5af94\assembly\dl3\49cf6573\9c28c516_d4a7cd01\Microsoft.Vbe.Interop.DLL" /R:"C:\Windows\assembly\GAC_MSIL\System.Runtime.Serialization\3.0.0.0__b77a5c561934e089\System.Runtime.Serialization.dll" /R:"C:\Windows\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\84e1764c\a7c5af94\assembly\dl3\3e1c6afb\ac61a245_d4a7cd01\obout_Interface.DLL" /R:"C:\Windows\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\84e1764c\a7c5af94\assembly\dl3\419549c8\ce7cf703_d4a7cd01\obout_TextMenu.DLL" /R:"C:\Windows\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\84e1764c\a7c5af94\assembly\dl3\4e2fd5b6\be9cf743_d4a7cd01\obout_Grid_NET.DLL" /R:"C:\Windows\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\84e1764c\a7c5af94\assembly\dl3\7c45df4e\1c65fb14_d4a7cd01\Microsoft.Office.Interop.Word.DLL" /R:"C:\Windows\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\84e1764c\a7c5af94\assembly\dl3\161a8730\ea77face_d5a7cd01\obout_FileUpload.DLL" /R:"C:\Windows\assembly\GAC_MSIL\System.ServiceModel\3.0.0.0__b77a5c561934e089\System.ServiceModel.dll" /R:"C:\Windows\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\84e1764c\a7c5af94\assembly\dl3\b94efe06\e8d6b43b_d4a7cd01\obout_EasyMenu_Pro.DLL" /R:"C:\Windows\assembly\GAC_32\System.Web\2.0.0.0__b03f5f7f11d50a3a\System.Web.dll" /R:"C:\Windows\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\84e1764c\a7c5af94\assembly\dl3\526f4d83\f431a930_d4a7cd01\Obout.Ajax.UI.DLL" /R:"C:\Windows\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\84e1764c\a7c5af94\assembly\dl3\7043b70c\48142501_d4a7cd01\obout_SlideMenu3_Pro_NET.DLL" /out:"C:\Windows\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\84e1764c\a7c5af94\App_Web_9j7lk7lp.dll" /D:DEBUG=1 /debug+ /define:_MYTYPE=\"Web\" /imports:Microsoft.VisualBasic,System,System.Collections,System.Collections.Specialized,System.Configuration,System.Text,System.Text.RegularExpressions,System.Web,System.Web.Caching,System.Web.SessionState,System.Web.Security,System.Web.Profile,System.Web.UI,System.Web.UI.WebControls,System.Web.UI.WebControls.WebParts,System.Web.UI.HtmlControls  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\84e1764c\a7c5af94\App_Web_9j7lk7lp.0.vb" "C:\Windows\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\84e1764c\a7c5af94\App_Web_9j7lk7lp.1.vb"


Microsoft (R) Visual Basic Compiler version 8.0.50727.5420
for Microsoft (R) .NET Framework version 2.0.50727.5472
Copyright (c) Microsoft Corporation.  All rights reserved.

C:\...\default.aspx(3) : error BC30002: Type 'Access' is not defined.

Dim a As Access = New Access()
         ~~~~~~               
C:\Windows\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\84e1764c\a7c5af94\App_Web_9j7lk7lp.0.vb(15) : warning BC40056: Namespace or type specified in the Imports 'Geo' doesn't contain any public member or cannot be found. Make sure the namespace or the type is defined and contains at least one public member. Make sure the imported element name doesn't use any aliases.

Imports Geo
        ~~~~~~~~~~~~~~~

任何！帮助会很大！感激......我很绝望：S

我尝试的一切都不起作用-.-

谢谢

我做了一些测试，似乎即使文件 Access.vb 无效（用 namejdacosijdfspace 替换命名空间）我也没有收到任何错误..

...说真的，有人吗？我真的很绝望:S

4

2 回答 2

2

两个问题。

首先，类是公共的，但功能是未修改的。这意味着该功能是私有的（或者可能是受保护的/朋友，取决于上下文）。你需要这个：

Namespace Geo

    Public Class Access
        Public Function hasAccess() As Boolean
            Return True
        End Function
    End Class

End Namespace

其次，您导入了命名空间，但没有告诉框架该命名空间的代码位于何处。尝试将 .vb 文件放在特殊的App_Code 文件夹中。或者，您可以将文件构建为 *.dll 作为类库的一部分，然后将其放入特殊的 /bin 文件夹中。

于 2013-07-24T23:07:51.543 回答
0

您需要将导入语句更改为Imports。

正确的语法是：

Imports Geo

作为替代方案，您可以删除 Import 语句并完全限定 Access 类：

Dim a As Geo.Access = New Geo.Access()
于 2013-07-24T19:34:05.337 回答