.NET的DLL在VBA(EXCEL) [英] .NET DLL in VBA (Excel)
问题描述
我花了最后2天试图让创建在VBA工作基本VB.NET DLL。我已阅读本视线的每一个职位,但我不断收到同样的错误。
- 我创建了一个VB.NET类(我运行Visual工作室以管理员身份)。
我班
进口系统
进口System.Collections.Generic
进口System.Text
进口System.Runtime.Interposervices
进口System.Linq的
公共类识别TestClass
功能TestMethod的(BYVAL输入为String)
返回你好和安培;输入
端功能
端类
- 我设置使装配自带可见
- 我设置注册为COM互操作
-
我建立和释放DLL
-
我打开Excel和添加到DLL的引用。
一切伟大的工程,到目前为止
-
在一个片我添加了下面的代码
公用Sub测试()
暗淡了作为识别TestClass注:自动填写一旦我开始在这么键入它我知道,有美元DLL b $ b将一个=新的TestClass
MSGBOX(a.TestMethod(世界)
端子
当我尝试运行代码我得到以下错误
< BLOCKQUOTE>
ActiveX组件不能创建对象
块引用>
我曾尝试使用这两台电脑:Win7的64位Excel 2010中的64位,VS 2010和Win7 64位时,Excel 2013,Visual Studio 2010的64位与知道运气。我看过的人收到同样的错误,但我似乎没有任何工作。
有谁看到我的方法的任何错误
? - 添加命名空间到你的代码。结果
-make功能为公共
。结果
-make其COM可见,并设置注册为COM Interop你所说的结果
- 你的代码应该是这样的:
命名空间X
酒店的公共类识别TestClass
公共功能TestMethod的(BYVAL输入作为字符串)
返回你好和安培;输入
端功能
端类
端命名空间
-build你的项目,你会发现在\bin\debug或\bin\release一个yourProjName.tlb文件。结果
-open Excel和添加到yourProjName.tlb的引用不DLL。< BR>
-modify你的代码是这样的:
子测试()
昏暗testObj作为新TestClass的
昏暗myStr中作为字符串
myStr中= testObj.TestMethod(SSSSSS)
MSGBOX myStr的
端子
这为我工作。结果
修改#1 结果
-I我在Windows 7上工作32位的Office 2010专业版32位SP2中,Visual Studio 2010中使用框架4.结果
-configure项目针对x64:从Visual Studio - >转到生成菜单 - >单击配置管理器 - >在活动解决方案平台,单击新建,然后添加一个带有64位的平台。利用这个平台来编译针对x64,链接。结果
- 它是首选签署程序集(很容易):项目属性>签名>登录装配>新建 - >输入文件myKey.snk,不需要密码的名称
-build项目结果
- 如果你在同一台机器上工作,在运行Visual Studio,则无需注册程序集,因为VS会做,因为我们设置'注册COM互操作结果
- 对于其他客户机在哪里VS在未运行,您必须注册组装,只需要的DLL文件,运行CMD以管理员身份运行以下命令:结果
C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm /代码库/证:D:\\ \\out\VB_DLL_001.dll
请注意,这个命令会为您生成* .tlb文件在同一个文件夹中。结果
-add你的DLL到全局程序集缓存通过在cmd中运行以下命令(即以管理员身份运行):
C:\Program Files\Microsoft SDKs\Windows\v7.0A\bin\gacutil.exe/我D:\out\VB_DLL_001.dll
- 从Excel中添加引用生成的TLB文件:VBA编辑器 - >工具 - >引用 - >浏览 - >选择在TLB文件 - >确定。然后运行上面的代码,我希望它会成功运行。搜索结果
修改#2基于注释结果
,它通过构建DLL对于 64 架构,因此,没有必要在EDIT 1#其他步骤。
I have spent the last 2 days trying to get a basic VB.NET dll that created to work in VBA. I have read every single post on this sight but i keep getting the same error.
- I create a VB.NET class (I run Visual Studio's as administrator).
My class
Imports System
Imports System.Collections.Generic
Imports System.Text
Imports System.Runtime.Interposervices
Imports System.Linq
Public Class TestClass
Function TestMethod(ByVal input as String)
Return "Hello" & input
End Function
End Class
- I set "Make assembly comes visible"
- I set "Register for COM interop"
I build and release the dll
I open Excel and add a reference to the dll.
Everything works great so far
In a sheet I add the below code
Public Sub test() Dim a As TestClass 'Note: Auto fills in once i start typing it in so i know that the DLL there Set a = New TestClass MsgBox (a.TestMethod("World") End Sub
When i try running the code I get the following error
"ActiveX component can't create object"
I have tried this using 2 computers: Win7 64 bit, Excel 2010 64 bit ,VS 2010 and Win7 64 bit, Excel 2013 , VS 2010 64 bit with know luck. I have read people receiving the same error but I nothing seems to work.
Does anyone see any mistakes in my method?
-add a namespace to your code.
-make the function as public
.
-make it com visible and set 'Register for COM interop' as you mentioned.
-your code should be like:
Namespace X
Public Class TestClass
Public Function TestMethod(ByVal input As String)
Return "Hello" & input
End Function
End Class
End Namespace
-build your project, you will find a yourProjName.tlb file in \bin\debug or \bin\release.
-open Excel and add a reference to the yourProjName.tlb not to dll.
-modify your code to be like:
Sub test()
Dim testObj As New TestClass
Dim myStr As String
myStr = testObj.TestMethod("ssssss")
MsgBox myStr
End Sub
This worked for me.
EDIT #1
-I am working on Windows 7 32 bit, Office 2010 professional 32 bit with SP2, Visual Studio 2010 with framework 4.
-configure your project for x64 : from Visual Studio ->Go to the Build Menu ->click Configuration Manager -> Under Active solution platform, click New, then add one with x64 as the platform. Use this platform to compile for x64 , link .
-It is preferred to sign your assembly (very easy) : Project Properties > Signing > Sign the assembly > New -> Enter the name of the file as myKey.snk , no need for password.
-build your project.
- if you are working on the same machine that visual studio in running, then no need to register your assembly, because VS will do since we set 'Register for COM interop'.
-for other client machines where VS in not running, you must register your assembly, take the DLL file only, run cmd as administrator, run the following command:
C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm /codebase /tlb "D:\out\VB_DLL_001.dll"
Note that this command will generate the *.tlb file for you in the same folder.
-add your dll to Global Assembly cache by running the following command in cmd (that is running as administrator) :
"c:\Program Files\Microsoft SDKs\Windows\v7.0A\bin\gacutil.exe" /i "d:\out\VB_DLL_001.dll"
-from Excel add reference to the generated tlb file : VBA Editor -> Tools -> References -> Browse -> Select the tlb file -> OK . Then run the previous code, I hope it will run successfully .
EDIT #2
Based on the comment, It works by building the DLL for x64 architecture, So, no need for other steps in EDIT #1.
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