Force create LocalDB database

gistfile1.cs

using (var conn = new SqlConnection(@"Data Source=(LocalDb)\v11.0;Initial Catalog=Master;Integrated Security=True"))
{
    conn.Open();
    
    var cmd = new SqlCommand();
    cmd.Connection = conn;
    cmd.CommandText =  string.Format(@"
	IF EXISTS(SELECT * FROM sys.databases WHERE name='{0}')
	BEGIN
		ALTER DATABASE [{0}]
		SET SINGLE_USER
		WITH ROLLBACK IMMEDIATE
		DROP DATABASE [{0}]
	END

	DECLARE @FILENAME AS VARCHAR(255)

	SET @FILENAME = CONVERT(VARCHAR(255), SERVERPROPERTY('instancedefaultdatapath')) + '{0}';

	EXEC ('CREATE DATABASE [{0}] ON PRIMARY 
		(NAME = [{0}], 
		FILENAME =''' + @FILENAME + ''', 
		SIZE = 25MB, 
		MAXSIZE = 50MB, 
		FILEGROWTH = 5MB )')", 
	databaseName);

    cmd.ExecuteNonQuery();
}