打开Paradox数据库； 'PDOXUSRS.NET'解决方法? [英] Opening Paradox database; 'PDOXUSRS.NET' workaround?

问题描述

我正在编写一个应用程序，该应用程序必须打开由第三方保存的预先存在的BDE数据库.

I'm writing an application that has to open a preexisting BDE database that has been saved by a third party.

在此应用程序中，我目前有一个TDatabase(DriverName:STANDARD)，其中在Params中正确设置了path.
现在，我可以将Connected设置为true，而不会出现错误消息了.

In this application, I currently have a TDatabase (DriverName: STANDARD) with path set correctly in Params.
I can now set Connected to true without an error message.

还有一个TTable，其中DatabaseName设置为TDatabase的值，而TableName设置为该文件夹中的.db文件(名称是自动填写的，我只想选择它).

There is also a TTable with DatabaseName set to the values of the TDatabase and TableName set to the .db-file that lies in the folder (the name was automatically filled in, I only hat to select it).

现在出现问题:
如果将Active设置为true，则会出现一条错误消息，提示您缺少对C:\PDOXUSRS.NET的访问权限.
我知道我可以使用BDEADMIN设置其他路径，但是我需要在应用程序中解决此问题-我不能指望每个客户都进行此更改. 此外，我有一台运行第三方应用程序的测试机-它可以访问数据库而不会出现任何错误，而我的应用程序会抛出上述错误.这使我怀疑可能存在解决方法.

Now the problem:
If I set Active to true, an error message complains about missing access rights for C:\PDOXUSRS.NET.
I know I could set another path using BDEADMIN, but I need to solve this in my application - I can't expect every customer to do this change. Furthermore, I have a test machine with the third party application running - it can access the database without any error, while my application throws the aforementioned error. This leads me to the suspicion there might be a workaround.

有这样的解决方法吗?
我只需要对数据库的读取权限.

Is there such a workaround?
I only need read access to the database.

推荐答案

由于链接笨蛋
非常感谢你.

Solved it thanks to the link of bummi
Thank you very much.

报价:

如何以编程方式更改NET DIR，使其持久存在
[...]
您还应该记住，如果您的程序在运行时使用DbiSetProp函数或TSession组件的NetFileDir属性更改其自己的NET DIR位置，则它将覆盖配置文件中的NET DIR值.

How to change NET DIR programmatically so it persists
[...]
You should also remember that if you have programs that change their own NET DIR locations at runtime, using either the DbiSetProp function or the NetFileDir property of a TSession component, this will override the NET DIR value in the configuration file.

它向我指出了更改代码中的NET DIR的可能性:

It pointed me to the possibility of changing the NET DIR in code:

Session.NetFileDir := MyCustomTempDir;

完成此操作后，Table1.active := true起作用，并且数据显示在连接的TDBGrid中.

After doing that, Table1.active := true works and the data shows up in a connected TDBGrid.

这篇关于打开Paradox数据库； 'PDOXUSRS.NET'解决方法?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！