Select a value from drop down using Selenium WebDriver C# [duplicate]

Answer 1

1) Using a SelectElement as already commented - How to select an option from drop down using Selenium WebDriver C#? The SelectElement belongs to the OpenQA.Selenium.Support.UI namespace.

2) You could also do something like this with css selectors:

WebElement dateOfBirth =  webdriver.FindElement(By.Id("join_birth_day"))
                              .FindElement(By.CssSelector("option[value='3']")).Select();