Why do I get “Database already exists” when I'm using “AttachDbFileName” when I move the solution to another directory?

Question

I have an application JigSaw that uses a database TopScores.mdf which it is not included in the project. What I want to do is make the application find the database

Answer 1

just rename ur .mdf file ... eg. from MNGMT.mdf to M_1(something you want). change your contact string...hope so it will help u.. in my case it is executing correctly on other pc as well as in my pc.. just copy your .mdf file into you project ..

string dbPath = Path.GetDirectoryName(Application.ExecutablePath) + "\\M_1.mdf";
string myServer = Environment.MachineName;
DataTable servers = SqlDataSourceEnumerator.Instance.GetDataSources();
            for (int i = 0; i < servers.Rows.Count; i++)
            {
                if (myServer == servers.Rows[i]["ServerName"].ToString()) ///// used to get the servers in the local machine////
                {
                    if ((servers.Rows[i]["InstanceName"] as string) != null)
                        servername = (servers.Rows[i]["ServerName"] + "\\" + servers.Rows[i]["InstanceName"]);
                    else
                        servername = ""+servers.Rows[i]["ServerName"];
                }
            }
connetionString = "Data Source=" + servername + ";AttachDbFilename=" + dbPath + ";Integrated Security=True;Pooling=False;User Instance=True";