private void btnCreate_Click_1(object sender, EventArgs e)
{
subEdit = true;
if (gvTests.SelectedRows.Count < 0)
{
MessageBox.Show("Chọn ít nhất 1 đề.");
subEdit = false;
}
else
{
using (var db = new dbQLThiTracNghiemDataContext())
{
for (int i = 0; i < gvTests.SelectedRows.Count; i++)
{
Test qs = (Test)gvTests.SelectedRows[i].DataBoundItem;
if (qs.grade != nudGrade.Value)
{
MessageBox.Show("Đề thi không hợp với khối.");
subEdit = false;
break;
}
}
if (subEdit)
{
for (int i = 0; i < gvTests.SelectedRows.Count; i++)
{
var id = (gvTests.SelectedRows[i].DataBoundItem as Test).idTest;
Test_Examination te = new Test_Examination()
{
idExamination = idExam,
idTest = id
};
db.Test_Examinations.Attach(te);
}
db.SubmitChanges();
}
}
}
if (subEdit)
{
Close();
}
}
private void button2_Click(object sender, EventArgs e)
{
if (gvTests.SelectedRows.Count > 0)
{
using (var db = new dbQLThiTracNghiemDataContext())
{
for (int i = 0; i < gvTests.SelectedRows.Count; i++)
{
var id = (gvTests.SelectedRows[i].DataBoundItem as Test).idTest;
Test_Examination qs = db.Test_Examinations.Where(r => r.idExamination == idExam && r.idTest == id).Select(r => r).Single();
//db.Question_Tests.Attach(qs);
db.Test_Examinations.DeleteOnSubmit(qs);
}
db.SubmitChanges();
}
refestGV();
}
else
{
MessageBox.Show("Chọn ít nhất 1 dòng để xóa!");
}
}