Question

我创建了多选系统，用户需要从4个radiobutton中选择答案，然后点击下一个按钮导航到下一个问题。

所以，我在选择的radiobutton存储到数据库时遇到了问题。首先，我创建一个表，我创建列来存储每个答案，但它失败了。现在，我被困住了。请提出我可以存储答案的任何建议。

这里我提供了加载问题的代码

p / s：我知道我应该在不同的主题上问这个问题，但我也坚持如何随机化放射线按钮。

Public Property Counter() As Integer
    Get
        Return IIf(ViewState("counter") Is Nothing, 1, CInt(ViewState("counter")))
    End Get
    Set(ByVal value As Integer
        ViewState("counter") = value
    End Set
End Property

Protected Sub Next_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click

        Counter += 1
        question()
        clean()

End Sub
Sub question()
conn.Open()

    Dim cmd As New SqlCommand("Select * From ques Where Id=@Id", conn)
    cmd.Parameters.AddWithValue("@Id", Counter)
    Dim dr1 As SqlDataReader
    dr1 = cmd.ExecuteReader

        If dr1.Read() Then
            Me.lblquestion.Text = dr1("question")
            Me.RadioButton1.Text = dr1("right")
            Me.RadioButton2.Text = dr1("wrong")
            Me.RadioButton3.Text = dr1("wrong2")
            Me.RadioButton4.Text = dr1("wrong3")


    Else
        conn.Close()
        Counter += 1
        question()
    End If
    conn.Close()


End Sub
Sub clean()
    RadioButton1.Checked = False
    RadioButton2.Checked = False
    RadioButton3.Checked = False
    RadioButton4.Checked = False
    Next.Enabled = False
End Sub

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
    question()
End Sub

Protected Sub RadioButton1_CheckedChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles RadioButton1.CheckedChanged
    Next.Enabled = True
End Sub

Protected Sub RadioButton2_CheckedChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles RadioButton2.CheckedChanged
    Next.Enabled = True
End Sub

Protected Sub RadioButton3_CheckedChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles RadioButton3.CheckedChanged
    Next.Enabled = True
End Sub

Protected Sub RadioButton4_CheckedChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles RadioButton4.CheckedChanged
    Next.Enabled = True
End Sub
End Class

Answer 1

我会有这样的数据库结构：

TblQuizes

Quiz_Id int 
Quiz_Name nvarchar(200) -- or any other number that meets your demands

TblQuestions

Question_Id int 
Question_Quiz_Id int --(FK To TblQuizes) 
Question_Text nvarchar(200) -- or any other number that meets your demands

TblAnswers

Answer_Id int 
Answer_Question_Id int --(FK To TblQuestions) 
Answer_Text nvarchar(200) -- or any other number that meets your demands 
Answer_IsCorrect bit

TblResults

Result_Id int 
Result_Quiz_Id int -- (FK to TblQuizes) (not even needed, just to convenience)
-- Add user data in this table if you need it

TblResultDetails

ResultDetails_Id int
ResultDetails_Result_Id int --(FK to TblResults) 
ResultDetails_Answer_Id int (FK to TblAnswers)

现在我要做的是为每个回答测验的用户在TblResults中创建一条新记录，并将用户答案存储在TblResultDetails中。在这个基本结构上，您可以创建视图，为您提供向用户显示测验所需的全部数据，或向他展示他如何回答您的问题，等等。如果用户没有完成测验，只需比较TblQuetions和TblResultDetails中针对特定测验ID的记录数量，您也可以非常轻松地看到。

此外，如果您只想提出2个答案或6个答案的问题，则无需更改数据库结构或代码中的任何内容即可。

建议将选定的单选按钮存储到数据库中

1 个答案: