Download file using webbrowser

//try this code, it will press save button from popup and after it will also select //location and it will close popup.

insert this code after download button pressed. it will fire once your popup opened.

Thread th = new Thread(() =>
{
System.Threading.Thread.Sleep(10000);
SendKeys.SendWait("{Tab}");
SendKeys.SendWait("{Tab}");
SendKeys.SendWait("{Tab}");
SendKeys.SendWait("{Enter}");
System.Threading.Thread.Sleep(5000);
SendKeys.SendWait("{Tab}");
SendKeys.SendWait("{Tab}");
SendKeys.SendWait("{Tab}");
SendKeys.SendWait("{Enter}");
});
th.SetApartmentState(ApartmentState.MTA);
th.Start();