Check database connection is open or close

Solutions 1: 

OledbConnString = "Provider=Microsoft.Jet.OLEDB.4.0; Data Source=C:\test.mdb";
OleDbConnection Conn = new OleDbConnection(OledbConnString);
if (Conn.State == Conn.Open)
{
     Messagebox.show("Connection is Open");
}
else
{
     Messagebox.show("Connection is Close");
}