<add name="MyConnection" connectionString="Data Source=xe;User ID=UsmanDBA;Password=root;"   providerName="System.Data.SqlClient" />

public string ConPass()
        {
            OracleConnectionStringBuilder builder = new OracleConnectionStringBuilder();
            builder.ConnectionString = con.ConnectionString;
            return builder.Password;
        }

string conString = "Data Source=xe;User ID=UsmanDBA;Password=root;";
        SqlConnectionStringBuilder builder = new SqlConnectionStringBuilder(conString);
        string user = builder.UserID;
        string pass = builder.Password;