Good for single values.
cn As New pg.PgSqlConnection(String)
cmd As New pg.PgSqlCommand
dr As pg.PgSqlDataReader
cn.Open()
cmd.commandText = "Select * from "
dr = cmd.ExecuteReader
While dr.Read
textBox.Text=dr.Item("email")
End While
dr.Close()
cmd.Dispose()
cn.Close()
