具有数据库文件相对路径的连接字符串 [英] Connection string with relative path to the database file

问题描述

我在 winforms 应用程序中从 sdf 数据库加载数据.我使用数据库文件的完整路径.示例:

I load data from sdf database in winforms App. I use full path to the database file . Example :

conn = new SqlCeConnection

{

ConnectionString ="Data Source=F:\My Documents\Project1\bin\Debug\Database.sdf"

};

我想使用数据库文件的相对路径.例如.我在文件夹 F:My DocumentsProject1inDebugDatafile.sdf 中有 sdf 文件，我想在连接字符串中使用相对路径.有什么建议吗?谢谢.

I d like use a relative path to the database file. For example. I have sdf file in folder F:My DocumentsProject1inDebugDatafile.sdf and I want use relative path in connection string. Any advice ? Thank you.

推荐答案

相对路径:

ConnectionString = "Data Source=|DataDirectory|Database.sdf";

将 DataDirectory 修改为可执行文件的路径:

Modifying DataDirectory as executable's path:

string executable = System.Reflection.Assembly.GetExecutingAssembly().Location;
string path = (System.IO.Path.GetDirectoryName(executable));
AppDomain.CurrentDomain.SetData("DataDirectory", path);

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