"Can't Find Pinvoke Dll 'Dbnetlib.Dll'." Error in Smart Device Application

Can't find PInvoke DLL 'dbnetlib.dll'. error in Smart Device Application

The way I solved my problem was I found dbnetlib.dll on my computer and I placed it in the same folder where my application was running from. There was more than one so I kept copying the different versions till I found the right one.

How to connect windows CE c# application to database SQL Server2008r2

I think you are mixing 2 things.

Either use The SqlConnection object, then you can connect to a SQL Server using a connection string found on this page:
https://www.connectionstrings.com/sql-server/

Or use like in your code the SqlCEConnection, then you connect to a SQL Lite (local file), and your connection string should be like on this page:
https://www.connectionstrings.com/sqlite/

But in your sample you are using SqlCEConnection to connect to a sql server, that wont work.

Grtz

What to use in creating a hand held database application

On a barcode scanner (like the symbol technology ones) running windows CE. You can easily use Visual Studio 2005 and 2008 and do your development in VB.net or C# (Though it requires at least the professional version of these annoyingly). For a database backend, there is a SQl Server Ce that is a smaller version of SQL server designed to run on a ce device.

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