WPF - 如何以编程方式备份​​/还原LocalDB - ClickOnce

Question

我有一个应用程序使用EF和LocalDB作为它的数据库,由ClickOnce发布.这是我第一次使用LocalDB,我不知道如何添加一个功能到我的应用程序以编程方式备份​​/恢复数据库.

我的应用程序路径由ClickOnce安装:

C:\Users\Mahdi Rashidi\AppData\Local\Apps\2.0\NOL11TLW.9XG\CZM702AQ.LPP\basu..tion_939730333fb6fcc8_0001.0002_fd707bbb3c97f8d3

这是数据库文件安装的位置:

C:\Users\Mahdi Rashidi\AppData\Local\Apps\2.0\NOL11TLW.9XG\CZM702AQ.LPP\basu...exe_939730333fb6fcc8_0001.0002_none_8c555c3966727e7f

1. 我该如何备份/恢复数据库？
2. 如何通过ClickOnce进一步更新来保护数据库安全？

非常感谢 :)

Answer 1

这就是我为localDb的备份和恢复所做的

public void BackupDatabase(string filePath)
    {
        using (TVend2014Entities dbEntities = new TVend2014Entities(BaseData.ConnectionString))
        {
            string backupQuery = @"BACKUP DATABASE ""{0}"" TO DISK = N'{1}'";
            backupQuery = string.Format(backupQuery, "full databsase file path like C:\tempDb.mdf", filePath);
            dbEntities.Database.SqlQuery<object>(backupQuery).ToList().FirstOrDefault();
        }
    }

    public void RestoreDatabase(string filePath)
    {
        using (TVend2014Entities dbEntities = new TVend2014Entities(BaseData.ConnectionString))
        {
            string restoreQuery = @"USE [Master]; 
                                                ALTER DATABASE ""{0}"" SET SINGLE_USER WITH ROLLBACK IMMEDIATE;
                                                RESTORE DATABASE ""{0}"" FROM DISK='{1}' WITH REPLACE;
                                                ALTER DATABASE ""{0}"" SET MULTI_USER;";
            restoreQuery = string.Format(restoreQuery, "full db file path", filePath);
            var list = dbEntities.Database.SqlQuery<object>(restoreQuery).ToList();
            var resut = list.FirstOrDefault();
        }
    }

希望这是你想要的.