This might be a stupid silly question, but why is this not increasing past 2?
No matter how many times I click the button the label is stuck on 2.
protected void nextBtn_Click(object sender, EventArgs e)
{
questions = 1;
questions++;
qstnLbl.Text = questions.ToString();
}
The label is supposed to start at 1 and at button press add a number like 2-3-4 etc. Am I missing something?
Web is stateless. questions get initialized to 1 on each postback and hence the value is always 2;
Please change the code to as below where state is maintained using session:
protected void nextBtn_Click(object sender, EventArgs e)
{
questions = 1;
if (Session["questions"] != null)
questions = (int)Session["questions"];
questions++;
Session["questions"] = questions;
qstnLbl.Text = questions.ToString();
}
There are many ways to maintain state in Web. Please go through this link to get more information on that.
Even in a console or desktop application this would not work because on every click you are re-initializing your value to 1.
Also HTTP is stateless as mentioned by other Answer.
Your way of incrementing value is correct but it will always be 2 because you are declaring and assigning value to question variable 1 on button click. So when you click button you get question variable holding 1 which get incremented to 2 and will be displayed in label.
So, to solve the problem you have to use something that will hold your question variable forever unless you destroy that thing. Hence for that you can use ViewState, Session or Cookie.
Using Session.
protected void nextBtn_Click(object sender, EventArgs e)
{
int questions = Session["questions"] ==null? 1:
Convert.ToInt32(Session["questions"]);
questions++;
Session["questions"] = questions;
qstnLbl.Text = questions.ToString();
}
Similarly you can use ViewState or Cookie instead of session.
