This is a dynamic list we have in our site.
This is the HTML tag where I want to pass do
Since, you want to double click on the first record, you can try this java code:
(Assuming there is one table in the webpage, as complete HTML code is not available above and the row for the contents starts with 2nd.)
Actions act = new Actions(driver);
act.doubleClick(driver.findElement(By.xpath("//table//tr[2]//td[@class='dxgv'][1]"))).build().perform();
OR
Actions act = new Actions(driver);
act.moveToElement(driver.findElement(By.xpath("//table//tr[2]//td[@class='dxgv'][1]"))).doubleClick().build().perform();