public void TODO10()
{
using (var context = new AcademyContext())
{
context.Testses.Load();
var query = from testwork in context.TestWorks
group testwork.result by testwork.TestsId.category;
var List = query.ToList();
var colection = new List<TODO9_sort>();
foreach (var category in List)
{
int count = 0;
double sum = 0;
foreach (var item in category)
{
sum += item;
count++;
}
colection.Add(new TODO9_sort() { category = category.Key, rating = sum });
}
var query1 = from item in colection
orderby item.rating descending
select new
{
category = item.category,
rating = item.rating,
};
foreach (var item in query1)
{
Console.WriteLine("Category: {0}\n Point: {1}", item.category, item.rating);
}
}
}
public void TODO1()
{
using (var context = new AcademyContext())
{
context.TestWorks.Load();
var query = from user in context.Users
select user;
var userList = query.ToList();
foreach (var user in userList.Where(user => user.TestWorks != null).Where(user => user.TestWorks.result >= 20))
{
Console.WriteLine("\nName: " + user.name + "\n Age: " + user.age + "\nCity: " + user.city);
}
}
}
public void TODO8()
{
using (var context = new AcademyContext())
{
context.Lectures.Load();
var query = from teacher in context.Teachers
orderby teacher.readLectures descending
select teacher;
var teacherList = query.ToList();
foreach (var teacher in query)
{
Console.WriteLine("\nName: {0} \nRead lecture {1}:",teacher.name,teacher.readLectures);
}
}
}
public void TODO7()
{
using (var context = new AcademyContext())
{
var query = from question in context.Questions
orderby question.usedQuestion descending
select question;
var questionList = query.ToList();
foreach (var question in questionList)
{
Console.WriteLine("\nCategory:{0}\nText question:{1}\n Used quesion:{2}",question.category,question.textQuestion,question.usedQuestion);
}
}
}
public void TODO6()
{
using (var context = new AcademyContext())
{
context.TestWorks.Load();
var query = from user in context.Users
select user;
var userList = query.ToList();
foreach (var item in userList.Where(item => item.TestWorks != null))
{
Console.WriteLine("\nName: " + item.name + "\n Age: " + item.age + "\nCity: " + item.city +
"\n Result: " + item.TestWorks.result + "\n Lead time: " + item.TestWorks.leadTime);
}
}
}
public void TODO5()
{
using (var context = new AcademyContext())
{
context.TestWorks.Load();
var query = from user in context.Users
select user;
var query1 = from user in query
where user.TestWorks.result >= 20 && user.TestWorks.leadTime<=30
group user.name by user.city;
var userList = query1.ToList();
foreach (var city in userList)
{
int count = 0;
Console.WriteLine("Students from {0} :", city.Key);
foreach (var item in city)
{
count++;
Console.WriteLine("{0}", item);
}
Console.WriteLine("Students from {0} = {1}\n", city.Key, count);
}
}
}
public LogicsMethod()
{
var context = new AcademyContext();
context.Configuration.LazyLoadingEnabled = false;
}
public void TODO4()
{
using (var context = new AcademyContext())
{
var query = from user in context.Users
group user.name by user.city;
var userList = query.ToList();
foreach (var city in userList)
{
int count = 0;
Console.WriteLine("Students from {0} :", city.Key);
foreach (var item in city)
{
count++;
Console.WriteLine("{0}", item);
}
Console.WriteLine("Students from {0} = {1}\n", city.Key, count);
}
}
}