how to get previous question by using below code..

eswar rao

10y1.2k.NET

hi, friends i want to get previous question when i am click on previous button , i got a next question but i can not do for previous question so please write a cod or give a refer url to me.... i hope you understand my problem...Thank you.i am waiting for your reply

protected void btn_next_Click(object sender, EventArgs e)

{

getNextQuestion();

}

protected void btn_startexam_Click(object sender, EventArgs e)

{

btn_startexam.Visible = false;

Panel1.Visible = true;

int score = Convert.ToInt32(txtScore.Text);

lblScore.Text = "Score : " + Convert.ToString(score);

Session["counter"] = "1";

Random rnd = new Random();

int i = rnd.Next(1, 10);//Here specify your starting slno of question table and ending no.

getQuestion(i);

}

public void getQuestion(int no)

{

string str = "select * from Question where slNo=" + no + "";

SqlDataAdapter da2 = new SqlDataAdapter(str, sqlconn);

DataSet ds2 = new DataSet();

da2.Fill(ds2, "Question");

if (ds2.Tables[0].Rows.Count > 0)

{

DataRow dtr;

int i = 0;

while (i < ds2.Tables[0].Rows.Count)

{

dtr = ds2.Tables[0].Rows[i];

Session["Answer"] = Convert.ToString(Convert.ToInt32(dtr["Correct"].ToString()) - 1);

lblQuestion.Text = "Q." + Session["counter"].ToString() + " " + dtr["Question"].ToString();

RblOption.ClearSelection();

RblOption.Items.Clear();

RblOption.Items.Add(dtr["Option1"].ToString());

RblOption.Items.Add(dtr["Option2"].ToString());

RblOption.Items.Add(dtr["Option3"].ToString());

RblOption.Items.Add(dtr["Option4"].ToString());

i++;

}

public void getNextQuestion()

{

if (Convert.ToInt32(Session["counter"].ToString()) < 10)//10 is a counter which is used for 10 questions

{

if (RblOption.SelectedIndex >= 0)

{

if (Session["Answer"].ToString() == RblOption.SelectedIndex.ToString())

{

int score = Convert.ToInt32(txtScore.Text) + 1;// 1 for mark for each question

txtScore.Text = score.ToString();

lblScore.Text = "Score : " + Convert.ToString(score);

}

Random rnd = new Random();

int i = rnd.Next(1, 10);

//lblQuestion.Text = i.ToString();

getQuestion(i);

Session["counter"] = Convert.ToString(Convert.ToInt32(Session["counter"].ToString()) + 1);

}

else

{

Panel2.Visible = false;

//code for displaying after completting the exam, if you want to show the result then you can code here.

}

public void GetPrevQuestion(int prev)

{

write your code for me...

}

8 Replies

Know the answer? Post it — somebody with the same question will find it here.

eswar rao10y ago
thank you for given support to me...i will meat you later when error is occur in my program ok..thank you ..bye..
0
Rojalin Sahoo10y ago
Hello eswar,
First of all let me know that is the solution I provided for you is help full or not? Yes all your requirement can be fullfill with ASP.Net and C# . But I cann't code all for you you may try if there is any error or any problem then all author will be there to help you out.

1.random questions -- I think you made it
2.next and previous buttons for questions -- If my solution with your code work well then it will be done.
3.time control -- You may add ajax timer control for this
4.multiple subjects -- (not clear )
5.question attempt view (when answer the question the question on side panel label 1 corol has to change green color other wise in black color ) -- on strat of your exam make all lable color black in side onradiobuttonselectedindex event code for lable color change that will solveyour problem.
6.after complete get score and review for questions -- May I thought you calculate result on next button click event. but if you want to review your Question with answer and correct answer then save data in datatable will help you.
NOTE: all this idea is base on your code and idea that you provided earlier. You could R&D to get any other way also.
+1
eswar rao10y ago
Thank you ,rojalin....i have to face the some challenge's there are for online examination. 1.random questions 2.next and previous buttons for questions 3.time control 4.multiple subjects 5.question attempt view (when answer the question the question on side panel label 1 corol has to change green color other wise in black color ) 6.after complete get score and review for questions there are possible with Asp.net..? please help me..boss
0
Rojalin Sahoo10y ago
Fire event for GetPrvious Button Click and Call the function GetPrevQuestion() .
Add on hiddenfield on ASPX page for Question Slno :

Note: Change your hiddenfield ID in Code Behind Accordingly.
Also Fire an event on radiobuttonlistSelectedIndexChange as mentioned in my code radiobutton_Click.
+1
eswar rao10y ago
Thank you, so much for give this code for me..but where the btn_previous question event..and which properties are add to hiddenfield ,please tel me..
0
Rojalin Sahoo10y ago
On Aspx Page create a hiddenField for Slno.

protected void btn_next_Click(object sender, EventArgs e)
{
getNextQuestion();
}
protected void btn_startexam_Click(object sender, EventArgs e)
{
btn_startexam.Visible = false;
Panel1.Visible = true;
int score = Convert.ToInt32(txtScore.Text);
lblScore.Text = "Score : " + Convert.ToString(score);
Session["counter"] = "1";
Random rnd = new Random();
int i = rnd.Next(1, 10);//Here specify your starting slno of question table and ending no.
getQuestion(i);
}
public void getQuestion(int no)
{
string str = "select * from Question where slNo=" + no + "";
SqlDataAdapter da2 = new SqlDataAdapter(str, sqlconn);
DataSet ds2 = new DataSet();
da2.Fill(ds2, "Question");
if (ds2.Tables[0].Rows.Count > 0)
{
hiddenfield.Value = ds2.Rows[0]["slNo"].ToString();
DataRow dtr;
int i = 0;
while (i < ds2.Tables[0].Rows.Count)
{
dtr = ds2.Tables[0].Rows[i];
Session["Answer"] = Convert.ToString(Convert.ToInt32(dtr["Correct"].ToString()) - 1);
lblQuestion.Text = "Q." + Session["counter"].ToString() + " " + dtr["Question"].ToString();
RblOption.ClearSelection();
RblOption.Items.Clear();
RblOption.Items.Add(dtr["Option1"].ToString());
RblOption.Items.Add(dtr["Option2"].ToString());
RblOption.Items.Add(dtr["Option3"].ToString());
RblOption.Items.Add(dtr["Option4"].ToString());
i++;
}
}
}
public void getNextQuestion()
{
if (Convert.ToInt32(Session["counter"].ToString()) < 10)//10 is a counter which is used for 10 questions
{
if (RblOption.SelectedIndex >= 0)
{
if (Session["Answer"].ToString() == RblOption.SelectedIndex.ToString())
{
int score = Convert.ToInt32(txtScore.Text) + 1;// 1 for mark for each question
txtScore.Text = score.ToString();
lblScore.Text = "Score : " + Convert.ToString(score);
}
}
else
{
GetPreviousQuestionID();
}
Random rnd = new Random();
int i = rnd.Next(1, 10);
//lblQuestion.Text = i.ToString();
getQuestion(i);
Session["counter"] = Convert.ToString(Convert.ToInt32(Session["counter"].ToString()) + 1);
}
else
{
Panel2.Visible = false;
//code for displaying after completting the exam, if you want to show the result then you can code here.
}
protected void radiobutton_Click(object sender, EventArgs e)
{
GetPreviousQuestionID();
}
public void GetPreviousQuestionID()
{
ViewState["SelectedAnswer"] = RblOption.SelectedIndex.ToString() ; // Save Selected Answer
ViewState["PrvQuestion"] = hiddenfield.Value; // Save Previous Question No
}
}
public void GetPrevQuestion()
{
if(String.IsNullOrEmpty(ViewState["PrvQuestion"].ToString()))
{
int prveQuesNo = Convert.ToInt32(ViewState["PrvQuestion"].ToString());
getQuestion(prveQuesNo);
if(String.IsNullOrEmpty(ViewState["SelectedAnswer"].ToString())))
{
RblOption.SelectedIndex = ViewState["SelectedAnswer"].ToString();
}
}

}
Note: For first Question Disable Previous Button
+1
eswar rao10y ago
Thank you, Rojalin Sahoo , for given reply to my question ..i don't know about hidden field so please write a code for get previous question using my posted code...please help me.. i am waiting for your reply ...
0
Rojalin Sahoo10y ago
As you are sending questions Randomly and calculating result on next button click , so You could save Previous Question ID in a hiddenfield or viewstate and also Selected Answer to display. When Previous button clicked call getQuestion() Method with Question No (HiddenField/ViewState Value).
+1