I am ready to finalize a winforms add in I have created for Excel which uses Add-In Express to publish.
This add in uses a sql server localdb database with mdf file.
My primary question is how to deploy the mdf file to target machines. So far, I have manually copied the mdf file to test machine, but when testing the add in it fails to connect to the file (localdb is installed).
Error message:
Exception Source: .Net SqlClient Data Provider
Exception Type: System.Data.SqlClient.SqlException
Exception Message: Cannot open database "MyDatabase" requested by the login. The login failed.
Is it even possible to just drop the mdf onto machine and everything work? If so, is there a guide somewhere that could help. Or do I have to generate the sql scripts to create the database locally? If I do have to generate the SQL scripts, is there a way to roll this up in the Click-Once deployment approach, or I do I need a seperate process?
This is how you deploy a WinForms application with LocalDB
You have to create a localDB on your application and make sure the application will connect to that localDB.(if you don't know how to connect to local db, here => Connect to LocalDB. And make sure to create tables and procedures as same as your previous database.
Follow this answer(ticked) with code(connection string)
After this, you have to install Advanced Installer to create an installer for your application (the best choice I ever chose).
Then Follow this to create an installer where you make sure to add a prerequisite of localDB (say localdb 2019) installer of your current version.
This makes your application run on any pc and only requires localdb as a prerequisite to be installed which also comes with the installer.
Make sure to leave a message not to delete localdb on the application installed location.
Related
I have created a Windows Forms desktop application using Visual Studio 2019. I also created a database using SQL Server Management Studio. I connected the database with my application with connection string
"Data Source=CYBERCELL\\SQLEXPRESS;Initial Catalog=Details;Integrated Security=True;"
The application is running without any error. I published this application using Visual Studio 2019 publish wizard and installed in another computer. But I can't understand how to use and connect the database with the application in that system.
I am looking to install SQL Server in every computer. But if I install SQL Server, the server name will be different.
If you're locally installing SQL Server Express on each individual computer, you could use
.\SQLEXPRESS
or
(local)\SQLEXPRESS
as your server/instance name - this is the same on every computer. The dot . or (local) (in parenthesis) refers to the local computer, and SQLEXPRESS is the default instance name for any SQL Server Express installation.
I once stuck with this same scenario... and this is how I solved the problem,
You don't have to install SSMS or SQL server on any of your client's pc, if you follow these steps
You have to create a localDB on your application and make sure the application will connect to that localDB.(if you don't know how to connect to local db, here => Connect to LocalDB. And make sure to create tables and procedures as same as your previous database.
Follow this answer(ticked) with code(connection string)
After this, you have to install Advanced Installer to create an installer for your application (the best choice I ever chose).
Then Follow this to create an installer where you make sure to add a prerequisite of localDB (say localdb 2019) installer of your current version.
This makes your application run on any pc and only requires localdb as a prerequisite to be installed which also comes with the installer.
Make sure to leave a message not to delete localdb on the application installed location.
When I run my C# application on another PC, a network-related error appears. On my PC, it runs fine. I have used AttachDbFilename=|DataDirectory| to specify the location of my .mdf files. Now, what am I missing in this deployment that makes the application not to run on other PCs?
You are missing an SQL Server instance on your client machines,one option is to install LocalDB on them. Find the installation file SqlLocalDB.MSI, suitable for OS versions on your client machines, you may try this latest version https://download.microsoft.com/download/7/c/1/7c14e92e-bdcb-4f89-b7cf-93543e7112d1/SqlLocalDB.msi
It's my first time to Deploy an Application which uses SQL Server Express Database.
I'm Using Entity Framework Model First to contact Database.
and i created a Setup wizard with Install Shield to Install the App.
These are Steps that I'v done to Install The Application in Destination Computer :
Installing MS SQL Server Express (DEST)
Installing The Program using Setup file (DEST)
Detach Database from SQL server and Copy Related .mdf ,.ldf file to the Destination Computer.
Attach database file in destination computer using SQL Server Management Studio.
I know server names and SQL name Instances are different and my program can't run correctly with the Old Connection String.
I'm Beginner at this, and I want to know what should I do in the Destination Computer to make the program run?
should I find a way to change the connection string on runtime?!
or is there any way to modify installshield project and it do this work for me? (installshield is professional edition)
could you suggest me what to do?
in my searches I saw that WiX can do this, but I find it complicated, and i don't have enough time to learn it. i need to deploy the app ASAP.
Thanks alot.
Few hints for using LocalDB in your project:
Download SQL Express LocalDB 2014 here. You can install it silently with single command like this
msiexec /i SqlLocalDB.msi /qn IACCEPTSQLLOCALDBLICENSETERMS=YES
Include your .MDF in your VS project and set in properties to Copy if newer so that it gets copied to your bin folder during build so that it is automatically included in the installer.
At your app startup (in app.cs) check, if database file exists in desired location (e.g. %PUBLIC%\YourApp\Data) (WPF Desktop Application with MDF used locally for all local users). If not, copy the .mdf file from your app install dir to your data dir.
Modify app.config so that your connection string looks like:
<add name="MyContextLocalDB" connectionString="Server=(localdb)\MSSQLLocalDB; Integrated Security=True; AttachDBFilename=|DataDirectory|\MyDatabase.mdf; Connection Timeout = 30" providerName="System.Data.SqlClient" />
Connection timeout should be increased, since LocalDB exe is launched when you first try to connect to it.
You can also use Database.CreateIfNotExists, but I have never tried it.
I developed a C#.NET desktop application that uses MySQL as a back-end. What I want is that when user installs the application, the MySQL server should automatically installed and username and password are automatically set and the database is restored from a SQL Dump file automatically by the installer. I am using setup project in visual studio to create installer. Is it possible to perform this operation in an installer?? If yes then please tell how to perform these operations??
I'm afraid you can't unless your database server is MSSQL. Better create a separate installation between your application and the database server.
I fixed the issue like This
tack all the Backup of the MySql Data base
Created Console Utility which store the database in console Application
By Using Heat.exe added the Sql File And .Exe file to the Project (Wix)
Use the Custom Action Call the Exe Which Store the Database Backup
Delete the Exe and Sql File from the Install location
I'm using Visual Studio 2005. I create a project, not Web Project, just Windows application.
I remember that Access Database File can be added into a project. I don't need connection to server, data can be retrieved. And I want to do the same thing with SQL Database file.
I did the following steps:
Right-click on project.
Choose Add An Existing Item
Browse for *.mdf file.
DataSource Config Wizard appears and it displays this Message
An error occurred while retrieving the information from the database:
Failed to generate a user instance of SQL Server due to a failure int starting the process for the user instance. The connection will be closed.
I need help to add mdf file into my project.
To start with, and MDF file can be read only by an instance of SQL Server. If you deploy MDFs, then your application must either connect to a SQL Server provided by your end-user during setup, or it must deploy its own instance, in the later case a SQL Server Express Edition instance. See How to: Install SQL Server Express. With Visual Studio 2008 you can add a prerequisite to your own application setup MSI, see "Installing" the SQL Server 2008 Express ClickOnce Bootstrapper for Visual Studio 2008 SP1.
A second issue is that, despite the wide belief of the contrary, distributing the MDF alone without the LDF can land you into a world of pain. You can end up distributing an inconsistent MDF that needs the LDF to finish recovery and get into a consistent state.
But a more serious issue is your plan to deploy binaries (MDFs) instead of scripts for database deployment. This is doomed to fail. As soon as you'll plan to release v. 1.1 of your application you'll face the non-trivial problem of how to replace the user MDF (which now contains data added by the user) with your new MDF. This is why is much much better to deploy upgrade scripts always, and forget about the MDF in your project.
You can read from an Access file (*.mdb) in your app without any other requirements because the core Jet engine used by Access is included as part of Windows — it's built in. Sql Server is not included as part of Windows, and so you cannot use an *.mdf file in your app unless Sql Server has been installed and you have appropriate permissions for it.
It is possible to distribute either Sql Server Express Edition or Sql Server Compact Edition (recommended) with your app. Another option is SqlLite, which has a fully-managed database engine available.
An .MDF is a sql server DB, not MS Access. MS access is .MDB. You cannot read an .MDF on its own. It needs a log file (.LDF) as well. If you attach it to your local instance, it will create a new one for you. You can then connect to that DB.
To solve deployement problem (Updated version of your .mdf file and Code), you can have a utility in your application which can create .xls file of every table(Backup your database) which you used in your application. Now you can easly import those .xls file in SQL Server and create new version of .mdf file and attach same file in latest code.Now new release of your app ready to deploye..!