/// <summary>
/// Filters our list of tests, based on the parameters that has been given by user.
/// </summary>
/// <param name="course"></param>
/// <param name="grade"></param>
public void FilterTests(string course, int grade)
{
foreach (Test subject in TestList)
{
if (!MyTests.Contains(subject)) //We check if our filtered list contains Test from original
{
if (course == "" && subject.Grade == grade) //Make sure that it also matches our choosen course
{
MyTests.Add(subject); //If not, we add it to the list.
}
else if (grade == 0 && subject.CourseName == course)
{
MyTests.Add(subject);
}
else if (subject.Grade == grade && subject.CourseName == course)
{
MyTests.Add(subject);
}
}
}
foreach (Test filterTest in MyTests.ToList()) //This is if our list is populated with all tests
{
if (course != "" && filterTest.CourseName != course)
{
MyTests.Remove(filterTest);
}
if (grade != 0 && filterTest.Grade != grade)
{
MyTests.Remove(filterTest);
}
}
}
/// <summary>
/// Send Test.Id of the test to ApiHelper to delete it from db
/// </summary>
/// <param name="id"></param>
public void DeleteTest(int id)
{
ApiHelper.Instance.DeleteTest(id);
foreach (Test t in MyTests.ToList())
{
if (t.TestId == id)
{
MyTests.Remove(t);
TestList.Remove(t);
}
}
}
/// <summary>
/// Gets all test from DB and populates list
/// </summary>
public async void DisplayTests()
{
TestList = await ApiHelper.Instance.GetAllTests();
foreach (Test t in TestList)
{
if (!MyTests.Contains(t))
{
MyTests.Add(t);
}
}
}
/// <summary>
/// Filters our list based on the given course. So we only displays tests related to the course.
/// </summary>
/// <param name="course"></param>
public void FilterListByCourse(string course)
{
foreach (Test subject in TestList)
{
if (!MyTests.Contains(subject)) //We check if our filtered list contains Test from original
{
if (course == "")
{
MyTests.Add(subject); //If not, we add it to the list.
}
else if (subject.CourseName == course)
{
MyTests.Add(subject);
}
}
}
}
