如何保持得分？

Question

我正在做一個迷你測試，我不知道如何在用戶提交測試后制作一個能夠更新當前分數的跑分數。 分數可以波動25分，具體取決於問題是從錯誤到正確，反之亦然。

public partial class _Default : System.Web.UI.Page
{
private int totalScore = 0;

public void IncrementScore()
{
    totalScore += 25;
}

protected void Page_Load(object sender, EventArgs e)
{

    if (!IsPostBack)
    {
        lblHeader.Text = "quiz not taken";
    }
    else
    {
        lblHeader.Text = "Score: " + totalScore;
    }
}

protected void Submit_Click(object sender, EventArgs e)
{

    /***************************************************************************/
    if (IsValid)
        if (txtAnswer.Text.Equals("primary", StringComparison.InvariantCultureIgnoreCase))
        {
            lblQuestionResult1.ForeColor = System.Drawing.Color.Green;
            lblQuestionResult1.Text = "Correct";
        }
        else
        {
            lblQuestionResult1.ForeColor = System.Drawing.Color.Red;
            lblQuestionResult1.Text = "Incorrect";
        }

    /***************************************************************************/
    if (ddList.SelectedItem.Text.Equals("M:N"))
    {
        lblQuestionResult2.ForeColor = System.Drawing.Color.Green;
        lblQuestionResult2.Text = "Correct";
    }
    else
    {
        lblQuestionResult2.ForeColor = System.Drawing.Color.Red;
        lblQuestionResult2.Text = "Incorrect";
    }

    /***************************************************************************/
    if (RadioButton4.Checked == true)
    {
        lblQuestionResult3.ForeColor = System.Drawing.Color.Green;
        lblQuestionResult3.Text = "Correct";
    }
    else
    {
        lblQuestionResult3.ForeColor = System.Drawing.Color.Red;
        lblQuestionResult3.Text = "Incorrect";
    }

    /***************************************************************************/
    lblQuestionResult4.ForeColor = System.Drawing.Color.Red;
    lblQuestionResult4.Text = "Incorrect";
    if (Answer2.Checked && Answer3.Checked && !Answer1.Checked && !Answer4.Checked)
    {
        lblQuestionResult4.ForeColor = System.Drawing.Color.Green;
        lblQuestionResult4.Text = "Correct";
    }
}
}

Answer 1

遞增的方法

private int totalScore = 0;

將無法正常工作，因為您為每個HTTP請求獲取了一個新的_Default實例。

您可以在Session保持您的運行得分。

但是，我建議總是在需要時通過循環搜索答案並根據需要與每個答案相關聯的分數來重新計算總分。 如果人們回去並改變答案（假設允許這樣做），這簡化了邏輯。

Answer 2

修改它看起來像看，檢查語法，沒有使用VS.

protected void Page_Load（object sender，EventArgs e）{

if (!IsPostBack)
{
    lblHeader.Text = "quiz not taken";
}
else
{
    Session["TotalScore"] = ""+totalScore; //Storing it in a session
    lblHeader.Text = "Score: " + Session["TotalScore"];
}

}

//增量方法

if(Session["TotalScore"]!=null)
 { 
  totalScore += 25;
 } 
else
{
totalScore=int.Parse(Session["TotalScore"])+25;
}