SQLiteConnectionStringBuilder generates an invalid connection string

Question

I'm trying to build a valid connection string with the SQLiteConnectionStringBuilder (System.Data.SQLite v1.0.88.0) using either the datasource or the URI:

    Dim connectionBuilder = New SQLiteConnectionStringBuilder
    connectionBuilder.DataSource = Path.Combine(datadir, "mydatabase.sqlite")
    connectionBuilder.Version = 3

    ' Open connection
    Dim connection As New SQLiteConnection(connectionBuilder.ConnectionString)

Or:

    Dim connectionBuilder = New SQLiteConnectionStringBuilder
    connectionBuilder.Uri = New Uri(Path.Combine(datadir, "mydatabase.sqlite")).AbsolutePath
    connectionBuilder.Version = 3

    ' Open connection
    Dim connection As New SQLiteConnection(connectionBuilder.ConnectionString)

Both generate the same connection string:

    uri=file:///C:/Users/myusername/Documents/Visual%20Studio%202010/Projects/myproject/myproject/bin/Debug/data/mydatabase.sqlite;version=3

The URI itself is valid, the connection string actually looks good, but when I try to open the connection, it generates a NotSupportedExceptiondue to the path format within SQLite:

       bei System.Security.Util.StringExpressionSet.CanonicalizePath(String path, Boolean needFullPath)
       bei System.Security.Util.StringExpressionSet.CreateListFromExpressions(String[] str, Boolean needFullPath)
       bei System.Security.Permissions.FileIOPermission.AddPathList(FileIOPermissionAccess access, AccessControlActions control, String[]         pathListOrig, Boolean checkForDuplicates, Boolean needFullPath, Boolean copyPathList)
       bei System.Security.Permissions.FileIOPermission..ctor(FileIOPermissionAccess access, String[] pathList, Boolean checkForDuplicates,         Boolean needFullPath)
       bei System.IO.Path.GetFullPath(String path)
       bei System.Data.SQLite.SQLiteConnection.ExpandFileName(String sourceFile, Boolean toFullPath) in c:\dev\sqlite\dotnet\System.Data.        SQLite\SQLiteConnection.cs:Zeile 2690.
       bei System.Data.SQLite.SQLiteConnection.Open() in c:\dev\sqlite\dotnet\System.Data.SQLite\SQLiteConnection.cs:Zeile 2009.

How can I prevent this short of building the connection string myself?

Answer 1

The problem was related to issues with UNC paths starting with two \\. Somehow, the SQLiteConnectionStringBuilder was escaping them incorrectly.

I've solved my issue by replacing the first \\ with \\\:

connectionBuilder.DataSource = pathToFile.Replace("\\", "\\\")