ASP.Net/Components/Log In
Login form Demo (VB.net)
<source lang="csharp">
<%-- Code revised from ASP.NET Tips & Techniques (Paperback) by Greg Buczek
- Publisher: McGraw-Hill/Osborne Media; 1st edition (May 21, 2002)
- Language: English
- ISBN: 0072225149
--%> <%@ Page Language=VB Debug=true %> <%@ Import Namespace="System.Data" %> <%@ Import Namespace="System.Data.OLEDB" %> <script runat=server> Sub SubmitBtn_Click(Sender As Object, E As EventArgs)
Dim DBConn as OleDbConnection
Dim DBCommand As OleDbDataAdapter
Dim DSLogin as New DataSet
DBConn = New OleDbConnection("PROVIDER=" _
& "Microsoft.Jet.OLEDB.4.0;" _
& "DATA SOURCE=" _
& Server.MapPath("LogIn.mdb;"))
DBCommand = New OleDbDataAdapter _
("Select UserID from " _
& "Users Where " _
& "UserName = "" & txtUserName.Text _
& "" and Password = "" & txtPassword.Text _
& """, DBConn)
DBCommand.Fill(DSLogin, _
"UserInfo")
If DSLogin.Tables("UserInfo"). _
Rows.Count = 0 Then
lblMessage.Text = "The user name and password " _
& "were not found. Please try again."
Else
Session("UserID") = DSLogin.Tables("UserInfo"). _
Rows(0).Item("UserID")
Session("UserName") = txtUserName.Text
Response.Redirect("./welcome.aspx")
End If
End Sub </SCRIPT> <HTML> <HEAD> <TITLE>Log In Page</TITLE> </HEAD> <form runat="server"> <asp:Label
id="lblMessage" Font-Size="12pt" Font-Name="Tahoma" runat="server" Text="Complete each field to enter the site."
/>
User Name:<asp:TextBox
id="txtUserName" Columns="25" MaxLength="50" runat=server
/> <asp:RequiredFieldValidator
id="rfvUserName" ControlToValidate="txtUserName" Display="Dynamic" Font-Name="Tahoma" Font-Size="10pt" runat=server> User Name is Required!
</asp:RequiredFieldValidator>
Password:<asp:TextBox
id="txtPassword" Columns="25" MaxLength="50" runat=server TextMode="Password"
/> <asp:RequiredFieldValidator
id="rfvPassword" ControlToValidate="txtPassword" Display="Dynamic" Font-Name="Verdana" Font-Size="10pt" runat=server> Password is Required!
</asp:RequiredFieldValidator>
<asp:button
id="butOK" text=" OK " OnClick="SubmitBtn_Click" runat="server"
/> </form> </BODY> </HTML> <%-- Welcome.aspx <%@ Page Language=VB Debug=true %> <script runat=server> Sub Page_Load(ByVal Sender as Object, ByVal E as EventArgs)
If Len(Session("UserID")) = 0 Then
Response.Redirect("./login.aspx")
End If
lblMessage.Text = "Welcome: " & Session("UserName")
End Sub </SCRIPT> <HTML> <HEAD> <TITLE>Welcome Page</TITLE> </HEAD> <form runat="server"> <asp:Label
id="lblMessage" Font-Size="12pt" Font-Name="Tahoma" runat="server"
/> </form> </BODY> </HTML> --%>
</source>
<A href="http://www.nfex.ru/Code/ASPDownload/LogIn.zip">LogIn.zip( 8 k)</a>
