public void CheckQuestion()
{
WrongQuestion = 0;
//int CheckQuestion = 0;
Question question = new Question();
Answer answer = new Answer();
QuestionBL questionBL = new QuestionBL();
foreach (DataGridViewRow row in dataGridView1.Rows)
{
if ( row.Cells["QuestionTitle"].Value.ToString().Trim() != "" && row.Cells["NameQuestion"].Value.ToString().Trim() != "" && row.Cells["AnswerContent"].Value.ToString().Trim() != "" && row.Cells["TypeQuestion"].Value.ToString().Trim() != "")
{
if (row.Cells["TypeQuestion"].Value.ToString().Trim() == "shortanswer" || row.Cells["TypeQuestion"].Value.ToString().Trim() == "multichoice")
{
if (row.Cells["TypeQuestion"].Value.ToString().Trim() == "shortanswer")
{
string[] AnswerContent = row.Cells["AnswerContent"].Value.ToString().Trim().Split(new string[] { "</answer>" }, StringSplitOptions.None);
int NumAnswer = AnswerContent.Length - 1;
if (NumAnswer == 1)
{
string[] AnswerItem = AnswerContent[0].Split(new string[] { "---" }, StringSplitOptions.None);
if (AnswerItem[1].ToString().Trim() != "" && AnswerItem[1].ToString().Trim().Contains("</span>")==false && AnswerItem[0].ToString().Trim() != "")
{
int PointAnswer;
bool isNum = int.TryParse(AnswerItem[0].ToString().Trim(), out PointAnswer);
if (isNum = true && Convert.ToInt32(AnswerItem[0].ToString().Trim()) > 0)
{
row.DefaultCellStyle.BackColor = Color.LightSkyBlue ;
}
else
{
row.DefaultCellStyle.BackColor = Color.LightCoral;
row.ReadOnly = true;
WrongQuestion++;
}
}
else
{
row.DefaultCellStyle.BackColor = Color.LightCoral;
row.ReadOnly = true;
WrongQuestion++;
}
}
else
{
row.DefaultCellStyle.BackColor = Color.LightCoral;
row.ReadOnly = true;
WrongQuestion++;
}
}
else
{
string[] AnswerContent = row.Cells["AnswerContent"].Value.ToString().Trim().Split(new string[] { "</answer>" }, StringSplitOptions.None);
int Numanswer = AnswerContent.Length - 1;
if (Numanswer < 2)
{
row.DefaultCellStyle.BackColor = Color.LightCoral;
row.ReadOnly = true;
WrongQuestion++;
}
else
{
int empty = 0;
int CountNumberOfIncorrect = 0;
int TotalAnswer = 0;
for (int i = 0; i < AnswerContent.Length - 1; i++)
{
string[] AnswerItem = AnswerContent[i].Split(new string[] { "---" }, StringSplitOptions.None);
int PointAnswer;
bool isNum = int.TryParse(AnswerItem[0].ToString().Trim(), out PointAnswer);
//check null answer or invalid answer
if (AnswerItem[1].ToString().Trim() == "" || AnswerItem[1].ToString().Trim().Contains("</span>") == true || AnswerItem[0].ToString().Trim() == "" || isNum == false)
{
empty++;
}
//check don't have any correct answer
if (int.TryParse(AnswerItem[0].ToString().Trim(), out PointAnswer))
{
if (Convert.ToInt32(AnswerItem[0].ToString().Trim()) == 0)
{
CountNumberOfIncorrect++;
}
}
TotalAnswer++;
}
if (empty > 0 || TotalAnswer == CountNumberOfIncorrect)
{
row.DefaultCellStyle.BackColor = Color.LightCoral;
row.ReadOnly = true;
WrongQuestion++;
}
else
{
row.DefaultCellStyle.BackColor = Color.LightSkyBlue ;
}
}
}
}
else
{
row.DefaultCellStyle.BackColor = Color.LightCoral;
row.ReadOnly = true;
WrongQuestion++;
}
}
else
{
row.DefaultCellStyle.BackColor = Color.LightCoral;
row.ReadOnly = true;
WrongQuestion++;
}
}//end foreach
}
