Explicit Waits also known as Dynamic Waits because it is highly specific conditioned. It is implemented by WebDriverWait class. To understand why you need Explicit Wait in Selenium, you must go through the basic knowledge of the wait statements in a program. In simple terms, you must know some conditions. Such conditions have been created to give you a gist of the Explicit Waits and why they are important.
The Explicit Wait in Selenium is used to tell the Web Driver to wait for certain conditions (Expected Conditions) or maximum time exceeded before throwing “ElementNotVisibleException” exception. It is an intelligent kind of wait, but it can be applied only for specified elements. It gives better options than implicit wait as it waits for dynamically loaded Ajax elements.
Condition 1:
Suppose you have a web page consisting of a login form that takes input and loads the Home or Main page content. This page is dynamic because of the time constraints and network frequency, sometimes taking 10 seconds or maybe 15 seconds to load completely. Explicit Wait comes in handy in such cases and allows you to wait until the page is not present to display.
Condition 2:
Consider that you are working on an application that is travel themed and users fill the web form and submit it using submit button. Now, you might need to wait until and unless the specific data is not displayed. In such a case, Explicit Wait becomes helpful by waiting until a specific period for the set of elements that are not displayed yet.
Once we declare explicit wait we have to use “ExpectedConditions” or we can configure how frequently we want to check the condition using Fluent Wait. These days while implementing we are using Thread.Sleep() generally it is not recommended to use.
Explicit Wait syntax:
WebDriverWait wait = new WebDriverWait(WebDriverRefrence,TimeOut);