public ActionResult AddScheduleTest(FormCollection colection, ScheduleTest ScheduleTest)
{
int? DeviceId = colection["DeviceId"].Equals("") ? (int?)null : Convert.ToInt32(colection["DeviceId"]);
DateTime?DateOfTest = colection["DateOfTest"].Equals("") ? (DateTime?)null : Convert.ToDateTime(colection["DateOfTest"]);
DateTime?NextDateOfTest = colection["NextDateOfTest"].Equals("") ? (DateTime?)null : Convert.ToDateTime(colection["NextDateOfTest"]);
String CategoryTest = colection["CategoryTest"];
int? UserTest = colection["UserTest"].Equals("0") ? (int?)null : Convert.ToInt32(colection["UserTest"]);
String Notes = colection["Notes"];
Ql.AddScheduleTest(DeviceId, DateOfTest, NextDateOfTest, CategoryTest, UserTest, Notes);
return(RedirectToAction("ScheduleTest", "ScheduleTest"));
}