写一个简单的登陆控件

login.ascx
由于在页面上很频繁使用登陆，把它做成一个控件是很有必要的，下面就是我写的一个简单的登陆控件，大家可以根据的需要完善一下。
<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System.Data.Oledb" %>
<script language="VB" runat="server">
Sub Page_Load(sender As Object,e As EventArgs)
session("Accessed")=false
If session("UserName")="" And Not IsPassLogin() then
lblLogin.visible=true
lblMessage.visible=false
IsPassLogin()
else
lblMessage.Text=ShowPrompt(True)
lblMessage.visible=true
lblLogin.visible=false
End If
End Sub
'用户登陆验证
Public Function IsPassLogin() As Boolean
Dim MyConnection As OledbConnection
Dim strConnection As String="Provider=Microsoft.Jet.OLEDB.4.0; Data Source=" & Server.MapPath("DataBase/popmarry.mdb")
MyConnection=New OledbConnection(strConnection)
Dim sqlCommand="SELECT * FROM InMember WHERE MemberID='" & UserID & "'" & " AND Pwd='" & UserPassword & "'"

Dim MyAdapter As New OleDbDataAdapter(sqlCommand,MyConnection)
Dim ds As DataSet=New DataSet()
MyAdapter.Fill(ds,"InMember")
Dim dt As DataTable=ds.Tables("InMember")
If dt.Rows.Count>0 Then
Session("UserName")=UserID
Return(true)
Else
Return(false)
End If
End Function

补充：asp.net教程,组件控件开发