ClickOnce application using SQL Server database

Question

I'm trying to learn how to create a simple application using Visual Studio IDE in C#.

I wrote a little application that uses a local SQL Server database for reading and storing data. On my machine, the program seems to work normally, but when trying to install the application on client computer it seems unable to read from the database.

I've tried to include the following prerequisites to the publish properties but it doesn't work:

• Microsoft .NET Framework 4.5.2
• SQL Server 2012 Express LocalDB

Any ideas about the right way to do it?

Thanks to all.

Answer 1

You need to install SQL Server Express LocalDB (SqlLocalDB.MSI) on the computer you are deploying your ClickOnce application to.

Selecting "SQL Server Express LocalDB" in the Prerequisites window and using "Download prerequisites from the component vendor's web site" should take care of that:

If you do that it should install the LocalDB for you and any database errors are more than likely resulting from connection string errors or leaving Integrated Security enabled.

You need to test on a target computer which does not have "SQL Server Express LocalDB" installed and verify that after the ClickOnce deployment it is installed. This will confirm that the problem is not the missing prerequisites but the database access issues...