selenium check if exist

tips.cs

 private Boolean Exist(By by) //vérifie si un élément existe
        {
            try
            {
                this.driver.FindElement(by);
                return true;
            }
            catch(Exception)
            {
                return false;
            }
        }
/*
usage:
while(!Exist(By.XPath("//table[@class='dataOutput']/tbody/tr[@class='dataRowEven']"))) { Thread.Sleep(1000); }
*/