addtest.aspx.vb

利用简单框架结构vb+asp+sql,实现小型考试系统

Imports System.Data
Imports System.Data.SqlClient
Public Class addtest
    Inherits System.Web.UI.Page

#Region " Web 窗体设计器生成的代码 "

    '该调用是 Web 窗体设计器所必需的。
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()

    End Sub
    Protected WithEvents Button1 As System.Web.UI.WebControls.Button
    Protected WithEvents Button2 As System.Web.UI.WebControls.Button
    Protected WithEvents ddlsubname As System.Web.UI.WebControls.DropDownList
    Protected WithEvents txtquestion As System.Web.UI.HtmlControls.HtmlTextArea
    Protected WithEvents txtA As System.Web.UI.HtmlControls.HtmlTextArea
    Protected WithEvents txtB As System.Web.UI.HtmlControls.HtmlTextArea
    Protected WithEvents txtC As System.Web.UI.HtmlControls.HtmlTextArea
    Protected WithEvents txtD As System.Web.UI.HtmlControls.HtmlTextArea
    Protected WithEvents txtanswer As System.Web.UI.HtmlControls.HtmlInputText
    Protected WithEvents leixing1 As System.Web.UI.HtmlControls.HtmlInputRadioButton
    Protected WithEvents leixing2 As System.Web.UI.HtmlControls.HtmlInputRadioButton
    Protected WithEvents RequiredFieldValidator1 As System.Web.UI.WebControls.RequiredFieldValidator

    '注意: 以下占位符声明是 Web 窗体设计器所必需的。
    '不要删除或移动它。
    Private designerPlaceholderDeclaration As System.Object

    Private Sub Page_Init(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Init
        'CODEGEN: 此方法调用是 Web 窗体设计器所必需的
        '不要使用代码编辑器修改它。
        InitializeComponent()
    End Sub

#End Region

    Dim objconn As New SqlConnection(ConfigurationSettings.AppSettings("ConnectionString"))
    Public objcomd As SqlCommand
    Public comdstr, comdstr1 As String
    Dim testadp As SqlDataAdapter
    Dim testds As DataSet
    Dim testdr As SqlDataReader
    Public edittest, deltest, mana1 As String
    Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        '在此处放置初始化页的用户代码
        If Session("AdminName") Is Nothing Then
            Response.Write("<script language='javascript'>alert('用户不存在或者权限不足,请确认已登录.');history.go(-1)</script>")
        End If
        mana1 = Session("mana")
        mana1 = Server.UrlEncode(mana1)
        'Response.Write(mana1)
        edittest = Request.QueryString("edittest")

        If edittest <> "" Then
            comdstr = "select * from question where id=" & edittest
            objcomd = New SqlCommand(comdstr, objconn)
            objcomd.Connection.Open()
            testdr = objcomd.ExecuteReader
            If testdr.Read() Then
                ' ddlsubname.SelectedValue = testdr("subject").ToString
                txtquestion.Value = testdr("question").ToString
                txtA.Value = testdr("A").ToString
                txtB.Value = testdr("B").ToString
                txtC.Value = testdr("C").ToString
                txtD.Value = testdr("D").ToString
                txtanswer.Value = testdr("answer").ToString
                If testdr("type").ToString = "单选题" Then
                    leixing1.Checked = True
                Else
                    leixing2.Checked = True
                End If

            End If
            objcomd.Connection.Close()
        End If
        deltest = Request.QueryString("deltest")
        If deltest <> "" Then
            comdstr = "delete from question where id=" & deltest
            objcomd = New SqlCommand(comdstr, objconn)
            objcomd.Connection.Open()
            objcomd.ExecuteNonQuery()
            objcomd.Connection.Close()
            Response.Redirect("managesubject.aspx?mana=" & mana1)
        End If
        comdstr1 = "select id,subject from subject"
        testadp = New SqlDataAdapter(comdstr1, objconn)
        testds = New DataSet
        testadp.Fill(testds, "subject")
        ddlsubname.DataSource = testds.Tables("subject")
        ddlsubname.DataBind()

    End Sub
    Dim ddlsubname1, txtquestion1, txtA1, txtB1, txtC1, txtD1, txtanswer1, leixing As String
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        ddlsubname1 = Request.Form("ddlsubname")
        txtquestion1 = Request.Form("txtquestion")
        txtA1 = Request.Form("txtA")
        txtB1 = Request.Form("txtB")
        txtC1 = Request.Form("txtC")
        txtD1 = Request.Form("txtD")
        txtanswer1 = Request.Form("txtanswer")
        leixing = Request.Form("leixing")
        comdstr = "insert into question (subjectname,question,A,B,C,D,answer,type,haveselect) values('" & ddlsubname1 & "','" & txtquestion1 & "','" & txtA1 & "','" & txtB1 & "','" & txtC1 & "','" & txtD1 & "','" & txtanswer1 & "','" & leixing & "',0)"
        objcomd = New SqlCommand(comdstr, objconn)
        objcomd.Connection.Open()
        objcomd.ExecuteNonQuery()
        objcomd.Connection.Close()
        Response.Redirect("managesubject.aspx?mana=" & mana1)
    End Sub

    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        ddlsubname1 = Request.Form("ddlsubname")
        txtquestion1 = Request.Form("txtquestion")
        txtA1 = Request.Form("txtA")
        txtB1 = Request.Form("txtB")
        txtC1 = Request.Form("txtC")
        txtD1 = Request.Form("txtD")
        txtanswer1 = Request.Form("txtanswer")
        leixing = Request.Form("leixing")
        comdstr = "update question set subjectname='" & ddlsubname1 & "',question='" & txtquestion1 & "',A='" & txtA1 & "',B='" & txtB1 & "',C='" & txtC1 & "',D='" & txtD1 & "',answer='" & txtanswer1 & "',type='" & leixing & "',haveselect=0 where id=" & edittest
        objcomd = New SqlCommand(comdstr, objconn)
        objcomd.Connection.Open()
        objcomd.ExecuteNonQuery()
        objcomd.Connection.Close()
        Response.Redirect("managesubject.aspx?mana=" & mana1)
    End Sub
End Class