private bool IsNameAlreadyExists()
{
bool isExists = false;
if (this.gridEditCategory.IsVisible == true)
{
isExists = GridLineCategory.IsNameAlreadyExists(this.textBoxCategoryName.Text);
}
else if (this.gridEditTest.IsVisible == true)
{
isExists = GridLineTest.IsNameAlreadyExists(
this.textBoxTestName.Text, this.entityParentId);
}
else if (this.gridEditQuestion.IsVisible == true)
{
isExists = GridLineQuestion.IsNameAlreadyExists(
this.textBoxQuestionName.Text, this.entityParentId);
}
else if (this.gridEditAnswer.IsVisible == true)
{
isExists = GridLineAnswer.IsNameAlreadyExists(
this.textBoxAnswerText.Text, this.entityParentId);
}
return(isExists);
}
private void ShowTestsOfSelectedCategories(int?idCategory)
{
this.ShowHeaderTest();
this.ClearTheList();
using (TestingSystemEntities db = new TestingSystemEntities())
{
List <Test> listTestsOfSelectedCategories = null;
if (this.isTeacher)
{
listTestsOfSelectedCategories
= this.GetListTestsOfSelectedCategories(idCategory, db);
}
else
{
listTestsOfSelectedCategories
= this.GetListActiveTestsOfSelectedCategories(idCategory, db);
}
GridLineTest gridLineTest = null;
for (int i = 0; i < listTestsOfSelectedCategories.Count(); i++)
{
gridLineTest
= new GridLineTest(
i,
listTestsOfSelectedCategories[i],
this.isTeacher
);
// Установить стиль кнопки внутри grid
(gridLineTest.Children[0] as Button).Style = (Style)(this.Resources["styleButtonForList"]);
// Обработчик нажатия на название теста (Test).
(gridLineTest.Children[0] as Button).Click += ButtonInGridLineTest_Click;
if (this.isTeacher)
{
this.CreateEditingButtons(gridLineTest, listTestsOfSelectedCategories[i].Id);
}
this.stackPanelSelection.Children.Add(gridLineTest);
}
if (this.isTeacher)
{
if (gridLineTest == null)
{
gridLineTest = new GridLineTest();
gridLineTest.CategoryId = this.currentIdCategory;
}
this.CreateAddButton(gridLineTest);
}
}
}
private void LaunchingTestQuestions(Button senderButton)
{
// Загрузить страницу прохождения теста
this.gridSelection.Visibility = Visibility.Hidden;
this.gridPassingTheTest.Visibility = Visibility.Visible;
GridLineTest gridLineTest = senderButton.Parent as GridLineTest;
this.textBlockPassing_Title.Text
= gridLineTest.CategoryName
+ " | "
+ gridLineTest.TestName;
this.answersToTheCurrentQuestion = new List <Answer>();
using (TestingSystemEntities db = new TestingSystemEntities())
{
// Загружаем все активные вопросы текущего теста.
this.questionsOfTheSelectedTest = (
from question in db.Question.Include("Answer") // HACK или безотложная (много маленьких запросов)
where question.Test.Id == gridLineTest.TestID
where question.Active == true
select question
)
.ToList();
// Загружаем ответы для активных вопросов теста.
foreach (var item in this.questionsOfTheSelectedTest)
{
this.answersToTheCurrentQuestion
.AddRange(item.Answer.Where(x => x.QuestionId == item.Id).Select(x => x));
}
this.ShowQuestionWithAnswers();
}
}