在Vista中编译的VB.NET应用程序在XP上不起作用 [英] VB.NET app compiled in Vista does not work on XP

问题描述

嗨


我当前的应用程序出了问题。我目前在Visual Studio Express 2008上使用

Windows Vista。如果我在Vista上编译

应用程序，它在Vista上运行正常，但它不能正常工作

XP。如果我在XP上编译它（使用相同的源代码[从

vista复制]），它运行没有任何问题。


事情是：我只有一台虚拟机可以在XP上测试我的软件，

但是我无法在它上面开发。

当我尝试申报公众时出现错误OleDb对象。这里

来源：


公共DatabaseConnection作为新的OleDb.OleDbConnection


只有当我发生此错误时才会发生尝试填充这个OleDb对象的

的ConnectionString。

错误信息本身并没有用，所以我不会发布它

现在。

我的问题是：问题出在哪里，是否有人与Vista和XP应用程序有类似的问题？

谢谢你的帮助。


-

pmw

解决方案

9月22日，4：00 * pm，pmw< we ... @ see64.chwrote：

嗨


我当前的应用程序出了问题。我目前在Visual Studio Express 2008上使用

Windows Vista。如果我在Vista上编译

应用程序，它在Vista上运行正常，但它不能正常工作

XP。如果我在XP上编译它（使用相同的源代码[从

vista复制]），它运行没有任何问题。


事情是：我只有一台虚拟机可以在XP上测试我的软件，

但我无法开发它。


当我尝试时出现错误声明一个公共的OleDb对象。这里

来源：


公共DatabaseConnection作为新的OleDb.OleDbConnection


只有当我发生此错误时才会发生尝试填充这个OleDb对象的

的ConnectionString。


错误信息本身并没有用，所以我不会发布它

现在。


我的问题是：问题出在哪里，是否有人与Vista和XP应用程序有类似问题？
类似问题？


感谢您的帮助。


-

pmw

错误是什么？

9月22日16:04，kimiraikkonen< kimiraikkone ... @ gmail.comwrote ：

9月22日下午4：00 * pm，pmw< we ... @ see64.chwrote：

Hi

我当前的应用程序出了问题。我目前在Visual Studio Express 2008上使用

Windows Vista。如果我在Vista上编译

应用程序，它在Vista上运行正常，但它不能正常工作

XP。如果我在XP上编译它（使用相同的源代码[从

vista复制]），它运行没有任何问题。

事情是：我只有一台虚拟机在XP上测试我的软件，

但是我可以''在它上面发展。

当我尝试声明一个公共OleDb对象时，错误显示出来。这里

来源：

Public DatabaseConnection As New OleDb.OleDbConnection

只有当我尝试填充这个OleDb对象的

的ConnectionString时才会发生此错误。

错误信息本身并没有用，所以我现在不会发布它/ b $ b。

我的问题是：问题在哪里，是否有人与Vista和XP应用程序有类似问题？
类似问题？

感谢您的帮助。

-

pmw

什么''错误？ - Zitierten Text ausblenden -


- Zitierten Text anzeigen -

错误编号5 - 类型初始值设定项

Project.ModuleGlobalVariables抛出一个异常


和ex.InnerException.Message说：

抛出异常调用的目标

9月22日，5：16 * pm，PmW< we ... @ see64.chwrote：

9月22日16:04，kimiraikkonen< kimiraikkone ... @ gmail.comwrote：

9月22日，4：00 * pm，pmw< we ... @ see64.chwrote：

Hi

我的当前申请有问题。我目前在Visual Studio Express 2008上使用

Windows Vista。如果我在Vista上编译

应用程序，它在Vista上运行正常，但它不能正常工作

XP。如果我在XP上编译它（使用相同的源代码[从

vista复制]），它运行没有任何问题。

事情是：我只有一台虚拟机在XP上测试我的软件，

但我不能发展它。

当我尝试声明一个公共OleDb对象时，错误显示出来。这里

来源：

Public DatabaseConnection As New OleDb。 OleDbConnection

只有在我尝试填充

这个OleDb对象。

错误信息本身并没有用，所以我不会发布它br />
现在。

我的问题是：问题出在哪里，是否有人有

与Vista和XP应用程序类似的问题？

感谢您的帮助。

-

pmw

错误是什么？ - Zitierten Text ausblenden -

- Zitierten Text anzeigen -

错误编号5 -

的类型初始化程序Project.ModuleGlobalVariables抛出异常


和ex.InnerException.Message说：抛出异常

调用目标 - 隐藏引用文本 -


- 显示引用的文字 -

对不起，没有看到完整的代码（如果它不是太长），我就不能做了

除了猜测以下原因之外：


1）确保使用正确的连接字符串语法。请访问
http://www.connectionstrings.com 了解更多信息。


2）尝试将代码置于Try-Catch块中并捕获实际的

错误，如果它提供了额外的线索。

赞：


尝试

''...所有代码包括连接字符串

''以及与OleDb相关的东西对象

Catch ex As Exception

Msgbox（ex.Message.ToString）

结束尝试


3）尝试在Using-End中使用

初始化您的一次性OleDb类，以确保没有待处理的打开连接。


全部来自我。


希望这会有所帮助，


OnurGüzel

Hi

I''ve got a problem with my current application. I currently use
Windows Vista with Visual Studio Express 2008. If I compile the
application on Vista, it works fine on Vista, but it doesn''t work on
XP. If I compile it on XP (with the same source code [copied from
vista]), it runs without any problems.

The thing is: I only have a virtual machine to test my software on XP,
but I can''t develop on it.
The error shows up, when I try to declare a public OleDb object. Here
the source:

Public DatabaseConnection As New OleDb.OleDbConnection

This error only happens, when I try to fill up the ConnectionString of
this OleDb Object.
The error message itself is not really helpful, so I won''t post it
right now.
My Question is: Where is the problem, is there someone which had
similar problem with Vista and XP apps?
Thank you for your help.

--
pmw

解决方案

On Sep 22, 4:00*pm, pmw <[e-mail]:

Hi

I''ve got a problem with my current application. I currently use
Windows Vista with Visual Studio Express 2008. If I compile the
application on Vista, it works fine on Vista, but it doesn''t work on
XP. If I compile it on XP (with the same source code [copied from
vista]), it runs without any problems.

The thing is: I only have a virtual machine to test my software on XP,
but I can''t develop on it.

The error shows up, when I try to declare a public OleDb object. Here
the source:

Public DatabaseConnection As New OleDb.OleDbConnection

This error only happens, when I try to fill up the ConnectionString of
this OleDb Object.

The error message itself is not really helpful, so I won''t post it
right now.

My Question is: Where is the problem, is there someone which had
similar problem with Vista and XP apps?

Thank you for your help.

--
pmw

What''s the error?

On 22 Sep., 16:04, kimiraikkonen <[e-mail]:

On Sep 22, 4:00*pm, pmw <[e-mail]:

Hi

I''ve got a problem with my current application. I currently use
Windows Vista with Visual Studio Express 2008. If I compile the
application on Vista, it works fine on Vista, but it doesn''t work on
XP. If I compile it on XP (with the same source code [copied from
vista]), it runs without any problems.

The thing is: I only have a virtual machine to test my software on XP,
but I can''t develop on it.

The error shows up, when I try to declare a public OleDb object. Here
the source:

Public DatabaseConnection As New OleDb.OleDbConnection

This error only happens, when I try to fill up the ConnectionString of
this OleDb Object.

The error message itself is not really helpful, so I won''t post it
right now.

My Question is: Where is the problem, is there someone which had
similar problem with Vista and XP apps?

Thank you for your help.

--
pmw

What''s the error?- Zitierten Text ausblenden -

- Zitierten Text anzeigen -

Error Number 5 - The type initializer for
Project.ModuleGlobalVariables threw an exception

and the ex.InnerException.Message says: "Exception has been thrown by
the target of an invocation"

On Sep 22, 5:16*pm, PmW <[e-mail]:

On 22 Sep., 16:04, kimiraikkonen <[e-mail]:

On Sep 22, 4:00*pm, pmw <[e-mail]:

Hi

I''ve got a problem with my current application. I currently use
Windows Vista with Visual Studio Express 2008. If I compile the
application on Vista, it works fine on Vista, but it doesn''t work on
XP. If I compile it on XP (with the same source code [copied from
vista]), it runs without any problems.

The thing is: I only have a virtual machine to test my software on XP,
but I can''t develop on it.

The error shows up, when I try to declare a public OleDb object. Here
the source:

Public DatabaseConnection As New OleDb.OleDbConnection

This error only happens, when I try to fill up the ConnectionString of
this OleDb Object.

The error message itself is not really helpful, so I won''t post it
right now.

My Question is: Where is the problem, is there someone which had
similar problem with Vista and XP apps?

Thank you for your help.

--
pmw

What''s the error?- Zitierten Text ausblenden -

- Zitierten Text anzeigen -

Error Number 5 - The type initializer for
Project.ModuleGlobalVariables threw an exception

and the ex.InnerException.Message says: "Exception has been thrown by
the target of an invocation"- Hide quoted text -

- Show quoted text -

Sorry, without seeing full code (if it''s not too long), i can''t make
out the reason beyond guessing the following:

1)Make sure you are using proper connection string syntax. Look at
http://www.connectionstrings.com for more info.

2)Try to put your code inside a Try-Catch block and catch the actual
error if it provides additional clue.
Like:

Try
''...All the code including connection string
'' and stuff related to OleDb object
Catch ex As Exception
Msgbox(ex.Message.ToString)
End Try

3)Try to initialize your disposable OleDb class within Using-End Using
to ensure there''s no pending open connections.

All from me.

Hope this helps,

Onur Güzel

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