register.aspx.vb

基于.net科研管理信息系统 毕业设计参考代码

Imports System.Data
Imports System.Data.SqlClient
Partial Class register
    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

    '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

    Private connectionstring As String
    Dim conn As SqlConnection
    Dim ds As DataSet = New DataSet
    Dim sql As String
    Dim mycmd As SqlCommand


    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
        conn = New SqlConnection(connectionstring)
        conn.ConnectionString = "server=HP-PC;Database=SRM;uid=sa;pwd=sa;"
        sql = "select * from sci_user where user_id='" + user_id.Value + "'"
        Dim da As SqlDataAdapter = New SqlDataAdapter(sql, conn)
        conn.Open()
        da.Fill(ds)
    End Sub


    Private Sub Submit1_ServerClick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Submit1.ServerClick
        If (user_id.Value = "") Then
            Response.Write("<script>alert(' 你必须输入您所申请的用户名！！');</script>")
        ElseIf (pwd1.Value = "" Or pwd2.Value = "") Then
            Response.Write("<script>alert(' 请正确输入密码并确认！！');</script>")
        ElseIf (name.Value = "") Then
            Response.Write("<script>alert('请正确输入您的姓名！');</script>")
        ElseIf (ds.Tables(0).Rows.Count <> 0) Then
            Response.Write("<script>alert('该用户已存在！');</script>")
        Else

            sql = "insert into sci_user(user_id,password,user_name,sex,age,Email)values('" + user_id.Value + "',  '" + pwd1.Value + "', '" + name.Value + "', '" + sex.Value + "','" + age.Value + "', '" + email.Value + "') "

            mycmd = New SqlCommand(sql, conn)
            mycmd.ExecuteNonQuery()
            mycmd.Dispose()
            conn.Close()
            Response.Write("<script>alert('您已经成功注册！！！');</script>")
        End If
    End Sub

    Private Sub Reset1_ServerClick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Reset1.ServerClick
        user_id.Value = ""
        pwd1.Value = ""
        pwd2.Value = ""
        name.Value = ""
        age.Value = ""
        email.Value = ""
    End Sub

    Private Sub Submit2_ServerClick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Submit2.ServerClick
        If (ds.Tables(0).Rows.Count <> 0) Then
            Response.Write("<script>alert('该用户已存在！');</script>")
        Else
            Response.Write("<script>alert('不存在该用户,请继续添加！');</script>")
        End If
    End Sub
End Class