private void RefreshUi()
{
dgwTests.DataSource = db.GetTests();
txtIdTest.Text = currentTest.IdTest.ToString();
txtTestName.Text = currentTest.Name;
txtTestDescription.Text = currentTest.Desc;
if (currentTest.IdTest != 0)
{
dgwQuestions.DataSource = db.GetAllQuestionsOfATest(currentTest.IdTest);
}
// !!!! put the rest of the data !!!!
}