private void SEND_MESSAGE(string msg, string login)
{
InfoLibClientSendClass info = new InfoLibClientSendClass();
info.MSG = msg;
info.remoteEP = remoteEP_2;
info.Login = login;
info.Password = null;
info.TestMark = null;
info.GroupId = null;
info.TestId = null;
info.UserId = null;
SenderDataClient(info);
}
private void SenderDataClient(object obj)
{
InfoLibClientSendClass info = obj as InfoLibClientSendClass;
BinaryFormatter bf = new BinaryFormatter();
byte[] data = null;
using (MemoryStream ms = new MemoryStream())
{
bf.Serialize(ms, info);
data = ms.ToArray();
client_2.Send(data, data.Length, info.remoteEP);
}
}
private void Button1_Click(object sender, EventArgs e)
{
try
{
testPassed = 0;
var testId = Convert.ToInt32(dataGridView1.SelectedRows[0].Cells["Id"].Value);
InfoLibClientSendClass info = new InfoLibClientSendClass();
info.MSG = "PASS_TEST";
info.remoteEP = remoteEP_2;
info.TestId = testId;
info.UserId = USER_ID;
SenderDataClient(info);
}
catch (Exception)
{
MessageBox.Show("ERROR", "ClientAlert", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
private void Listener()
{
while (true)
{
IPEndPoint ep = null;
byte[] mas = client_2.Receive(ref ep);
using (MemoryStream ms = new MemoryStream())
{
BinaryFormatter bf = new BinaryFormatter();
ms.Write(mas, 0, mas.Length);
ms.Seek(0, SeekOrigin.Begin);
InfoLibClientSendClass info = (InfoLibClientSendClass)bf.Deserialize(ms);
if (info.MSG == "CONNECT")
{
var user = repoUser.FirstOrDefault(t => t.Login == info.Login && t.Password == info.Password);
Info inf = new Info();
if (user == null)
{
inf.MSG = "CONNECTED_FALSE";
inf.Data = null;
inf.DBTestData = null;
inf.DBUserData = null;
inf.remoteEP = remoteEP;
SenderData(inf);
}
else
{
inf.MSG = "CONNECTED_TRUE";
inf.Data = null;
inf.DBTestData = null;
inf.DBUserData = new DBUserData()
{
Id = user.Id, FName = user.FName, LName = user.LName, GroupId = user.GroupId
};
inf.remoteEP = remoteEP;
SenderData(inf);
}
}
else if (info.MSG == "LOAD_TESTS")
{
var user = repoUser.FirstOrDefault(t => t.Login == info.Login);
if (user == null)
{
return;
}
var groupP = repoGroup.FindById(user.GroupId);
if (groupP == null)
{
return;
}
var bs = from g in repoGroup.GetAllData()
join gt in repoGroupTest.GetAllData() on g.Id equals gt.GroupId
join t in repoTest.GetAllData() on gt.TestId equals t.Id
where g.Id == groupP.Id
select new { GroupName = g.Name, Author = t.Author, Title = t.Title, NumOfQuestions = t.NumOfQuestions, Time = t.Time };
Info inf = new Info();
inf.MSG = "LOAD_TESTS_TRUE";
inf.remoteEP = remoteEP;
inf.DBUserData = new DBUserData()
{
FName = groupP.Name
};
inf.Data = null;
inf.DBTestData = new List <DBTestData>();
foreach (var t in bs)
{
var test = repoTest.FirstOrDefault(m => m.Author == t.Author && m.Title == t.Title);
DBTestData data = new DBTestData()
{
Author = t.Author, Filename = test.Filename,
Id = test.Id, NumOfQuestions = t.NumOfQuestions, Title = t.Title, Time = t.Time
};
inf.DBTestData.Add(data);
}
SenderData(inf);
}
else if (info.MSG == "PASS_TEST")
{
var selectedTest = repoTest.FindById(info.TestId);
XmlSerializer formatter = new XmlSerializer(typeof(Data));
Data data = new Data();
using (FileStream fs = new FileStream($@"UploadedFiles\{selectedTest.Filename}", FileMode.Open))
{
data = (Data)formatter.Deserialize(fs);
}
Info d = new Info();
d.MSG = "RETURN_TEST";
d.Data = new Data();
d.Data = data;
d.remoteEP = remoteEP;
d.DBTestData = new List <DBTestData>();
d.DBTestData.Add(new DBTestData()
{
Id = selectedTest.Id, Author = selectedTest.Author, Filename = selectedTest.Filename,
NumOfQuestions = selectedTest.NumOfQuestions, Title = selectedTest.Title, Time = selectedTest.Time
});
SenderData(d);
}
else if (info.MSG == "TEST_PASSED_DATA")
{
var gr = repoGrade.FirstOrDefault(t => t.UserId == info.UserId && t.TestId == info.TestId);
if (gr != null)
{
if (info.UserId.HasValue)
{
gr.UserId = info.UserId.Value;
}
if (info.TestId.HasValue)
{
gr.TestId = info.TestId.Value;
}
if (info.TestMark.HasValue)
{
gr.Mark = info.TestMark.Value;
}
repoGrade.Update(gr);
}
else
{
Grade grade = new Grade();
if (info.UserId.HasValue)
{
grade.UserId = info.UserId.Value;
}
if (info.TestId.HasValue)
{
grade.TestId = info.TestId.Value;
}
if (info.TestMark.HasValue)
{
grade.Mark = info.TestMark.Value;
}
repoGrade.Add(grade);
}
}
}
}
}
private void Listener()
{
while (true)
{
IPEndPoint ep = null;
byte[] mas = client.Receive(ref ep);
using (MemoryStream ms = new MemoryStream())
{
BinaryFormatter bf = new BinaryFormatter();
ms.Write(mas, 0, mas.Length);
ms.Seek(0, SeekOrigin.Begin);
Info info = (Info)bf.Deserialize(ms);
if (info.MSG == "CONNECTED_TRUE")
{
GiveAccess = true;
label1.Text = info.DBUserData.FName;
label2.Text = info.DBUserData.LName;
USER_ID = info.DBUserData.Id;
GROUP_ID = info.DBUserData.GroupId;
if (GROUP_ID == null && noGroup == 0)
{
MessageBox.Show("Admin should first add you to the group!\nThen restart app", "ClientAlert", MessageBoxButtons.OK, MessageBoxIcon.Error);
noGroup = 1;
}
}
else if (info.MSG == "EXIT")
{
Application.Exit();
}
else if (info.MSG == "LOAD_TESTS_TRUE")
{
if (GROUP_NAME == string.Empty)
{
GROUP_NAME = info.DBUserData.FName;
Invoke(new Action(() =>
{
label3.Text = "Group: " + GROUP_NAME;
}));
}
dBTestDataList = info.DBTestData;
Invoke(new Action(() =>
{
dataGridView1.DataSource = null;
dataGridView1.Rows.Clear();
dataGridView1.DataSource = dBTestDataList;
}));
}
else if (info.MSG == "RETURN_TEST")
{
if (testPassed == 1)
{
continue;
}
Data data = info.Data;
List <TestAnsws> answs = new List <TestAnsws>();
for (int i = 0; i < data.Tests.Count(); i++)
{
FormPassTest form = new FormPassTest();
form.groupBox1.Text = $"{i+1} || {data.Tests.Count()}";
form.textBox1.Text = data.Tests[i].Question;
for (int j = 0; j < data.Tests[i].Answers.Count(); j++)
{
form.listBox1.Items.Add(data.Tests[i].Answers[j]);
}
DialogResult res = form.ShowDialog();
if (res == DialogResult.OK)
{
if (form.listBox1.SelectedItem.ToString() == data.Tests[i].CorectAnswer)
{
answs.Add(new TestAnsws()
{
Question = data.Tests[i].Question, IsAnswerCorect = true
});
}
else
{
answs.Add(new TestAnsws()
{
Question = data.Tests[i].Question, IsAnswerCorect = false
});
}
}
}
var trueAswers = answs.Where(t => t.IsAnswerCorect == true).Count();
var totalAnswers = data.Tests.Count();
double ress = 0;
try
{
ress = (trueAswers * 100) / totalAnswers;
}
catch (Exception)
{
MessageBox.Show("ERROR", "ClientAlert", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
var mark = Convert.ToInt32(ress);
MessageBox.Show($"Your mark is: {mark}%", "TestClient", MessageBoxButtons.OK, MessageBoxIcon.Information);
InfoLibClientSendClass inf = new InfoLibClientSendClass();
inf.MSG = "TEST_PASSED_DATA";
inf.GroupId = GROUP_ID;
inf.UserId = USER_ID;
inf.TestId = info.DBTestData[0].Id;
inf.TestMark = mark;
inf.remoteEP = remoteEP_2;
SenderDataClient(inf);
testPassed = 1;
}
}
}
}
