OpenQA.selenium.support.ui.UnexpectedTagNameException: 'Element should have been "select" but was input'

Question

For dropdown list I use the below code

SelectElement select = new SelectElement(driver.FindElement(By.ClassName("select2-search__field")));
select.SelectByIndex(0);
select.SelectByText("Checking0");

But this error occured

OpenQA.selenium.support.ui.UnexpectedTagNameException: 'Element should have been "select" but was input'

Answer 1

https://www.w3schools.com/tags/tag_select.asp

Read the above link to know what is select tag in HTML ,

The select could only be used for 'select' tag. As in your question your class is 'select2-search__field' its not a select tag and more over looks like a search field to search for drop down content.