如何指向使用clickone

Question

我用数据库开发了一个Windows表单应用程序并发布了

当我试图获得使用代码实现的数据库备份时

 string database = GetDataDirectory();
        MessageBox.Show(database);
 SqlConnection.ClearAllPools();

        using (SqlConnection backupConn = new SqlConnection())
        {
            backupConn.ConnectionString = "Data Source=(LocalDB)\\v11.0;AttachDbFilename=|DataDirectory|\\BbCon.mdf;Integrated Security=True;Connect Timeout=30;";
            backupConn.Open();

            using (SqlCommand backupcomm = new SqlCommand())
            {
                backupcomm.Connection = backupConn;
                backupcomm.CommandText = @"BACKUP DATABASE @DBNAME TO DISK='c:\\Users\Public\\BbCon.bak'";
                backupcomm.Parameters.AddWithValue("@DBNAME", database+"\\BbCon.mdf");
                int x =  backupcomm.ExecuteNonQuery();
                if(x == -1)
                {
                    MessageBox.Show("DataBase Backup Created Successfully at c:\\Users\\Public");
                }
            }
            backupConn.Close();
        }

private string  GetDataDirectory()
    {
        ApplicationDeployment ad = ApplicationDeployment.CurrentDeployment;
        return ad.DataDirectory;
        //return Environment.CurrentDirectory.ToString();
    }

我收到错误

但是当我导航到错误消息中显示的目录时，我发现了一个Bbcon.mdf文件但是我收到了错误

请帮我解决这个问题我遇到问题请帮帮我

Answer 1

您无法通过其物理文件名备份数据库。您必须按数据库名称备份数据库：

BACKUP DATABASE [BbCon] TO DISK = 'c:\Users\Public\BbCon.bak'